Trial Outcomes & Findings for Retrieval-based Word Learning in Developmental Language Disorder: Adaptive Retrieval Schedule (NCT NCT06995014)
NCT ID: NCT06995014
Last Updated: 2026-09-02
Results Overview
5 minutes after second learning session, child is asked to recall and say the word associated with each novel referent learned under one of two conditions: one in which retrieval trials occurred on an adaptive schedule and one in which retrieval trials occurred on the standard schedule.
Recruitment status
TERMINATED
Study phase
NA
Target enrollment
7 participants
Primary outcome timeframe
5 minutes after end of learning period
Results posted on
2026-09-02
Participant Flow
Children are initially tested to see if they meet the inclusionary criteria, including age level score on a language test and a non-verbal IQ test; passing a hearing screening and an autism screener. Some children who are recruited and consented but do not meet all these criteria. No participants were enrolled in the "Children With Developmental Language Disorder" Arm/Group. The study was terminated before these children were recruited, therefore no participants were enrolled in this Arm.
Participant milestones
| Measure |
Children With Developmental Language Disorder
These children have a significant delay in language development in the absence of hearing impairment, cognitive delay, autism, or neurological injury/disease.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
Children With Typical Language Development
Children whose language development is as expected for their age.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
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|---|---|---|
|
Overall Study
STARTED
|
0
|
7
|
|
Overall Study
COMPLETED
|
0
|
7
|
|
Overall Study
NOT COMPLETED
|
0
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Retrieval-based Word Learning in Developmental Language Disorder: Adaptive Retrieval Schedule
Baseline characteristics by cohort
| Measure |
Children With Developmental Language Disorder
These children have a significant delay in language development in the absence of hearing impairment, cognitive delay, autism, or neurological injury/disease.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
Children With Typical Language Development
n=7 Participants
Children whose language development is as expected for their age.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
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Total
n=7 Participants
Total of all reporting groups
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|---|---|---|---|
|
Age, Continuous
|
—
|
55 months
STANDARD_DEVIATION 4.12 • n=136 Participants
|
55 months
STANDARD_DEVIATION 4.12 • n=272 Participants
|
|
Sex: Female, Male
Female
|
—
|
2 Participants
n=136 Participants
|
2 Participants
n=272 Participants
|
|
Sex: Female, Male
Male
|
—
|
5 Participants
n=136 Participants
|
5 Participants
n=272 Participants
|
|
Ethnicity (NIH/OMB)
Hispanic or Latino
|
—
|
0 Participants
n=136 Participants
|
0 Participants
n=272 Participants
|
|
Ethnicity (NIH/OMB)
Not Hispanic or Latino
|
—
|
7 Participants
n=136 Participants
|
7 Participants
n=272 Participants
|
|
Ethnicity (NIH/OMB)
Unknown or Not Reported
|
—
|
0 Participants
n=136 Participants
|
0 Participants
n=272 Participants
|
|
Race (NIH/OMB)
American Indian or Alaska Native
|
—
|
0 Participants
n=136 Participants
|
0 Participants
n=272 Participants
|
|
Race (NIH/OMB)
Asian
|
—
|
0 Participants
n=136 Participants
|
0 Participants
n=272 Participants
|
|
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
|
—
|
0 Participants
n=136 Participants
|
0 Participants
n=272 Participants
|
|
Race (NIH/OMB)
Black or African American
|
—
|
0 Participants
n=136 Participants
|
0 Participants
n=272 Participants
|
|
Race (NIH/OMB)
White
|
—
|
7 Participants
n=136 Participants
|
7 Participants
n=272 Participants
|
|
Race (NIH/OMB)
More than one race
|
—
|
0 Participants
n=136 Participants
|
0 Participants
n=272 Participants
|
|
Race (NIH/OMB)
Unknown or Not Reported
|
—
|
0 Participants
n=136 Participants
|
0 Participants
n=272 Participants
|
|
Region of Enrollment
United States
|
—
|
7 participants
n=136 Participants
|
7 participants
n=272 Participants
|
|
Maternal Education
|
—
|
16.14 years
STANDARD_DEVIATION 3.08 • n=136 Participants
|
16.14 years
STANDARD_DEVIATION 3.08 • n=272 Participants
|
PRIMARY outcome
Timeframe: 5 minutes after end of learning periodPopulation: DLD Participants = 0. Study was terminated before DLD group was recruited.
5 minutes after second learning session, child is asked to recall and say the word associated with each novel referent learned under one of two conditions: one in which retrieval trials occurred on an adaptive schedule and one in which retrieval trials occurred on the standard schedule.
Outcome measures
| Measure |
Children With Developmental Language Disorder
These children have a significant delay in language development in the absence of hearing impairment, cognitive delay, autism, or neurological injury/disease.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
Children With Typical Language Development
n=7 Participants
Children whose language development is as expected for their age.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
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|---|---|---|
|
Word Form Recall Accuracy (Number of Words Correctly Recalled) on Adaptive and Standard Retrieval Schedules at 5 Mins
Standard
|
—
|
4.71 number of words correctly recalled
Standard Error 0.78
|
|
Word Form Recall Accuracy (Number of Words Correctly Recalled) on Adaptive and Standard Retrieval Schedules at 5 Mins
Adaptive
|
—
|
5.43 number of words correctly recalled
Standard Error 0.37
|
PRIMARY outcome
Timeframe: 1 week after end of learning periodPopulation: Study was terminated before DLD group was recruited.
1 week after second learning session, child is asked to recall and say the word associated with each novel referent learned under one of two conditions: one in which retrieval trials occurred on adaptive schedule and one in which retrieval trials occurred on the standard schedule.
Outcome measures
| Measure |
Children With Developmental Language Disorder
These children have a significant delay in language development in the absence of hearing impairment, cognitive delay, autism, or neurological injury/disease.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
Children With Typical Language Development
n=7 Participants
Children whose language development is as expected for their age.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
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|---|---|---|
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Word Form Recall Accuracy (Number of Words Correctly Recalled) on Adaptive and Standard Retrieval Schedules at 1 Week
Standard
|
—
|
5.43 number of words correctly recalled
Standard Error 0.75
|
|
Word Form Recall Accuracy (Number of Words Correctly Recalled) on Adaptive and Standard Retrieval Schedules at 1 Week
Adaptive
|
—
|
6.43 number of words correctly recalled
Standard Error 0.61
|
PRIMARY outcome
Timeframe: 5 minutes after end of learning periodPopulation: DLD Participants = 0. Study was terminated before DLD group was recruited.
5 minutes after second learning session, child is asked to recall and say the semantic information associated with each novel referent learned under one of two conditions: one in which retrieval trials occurred on an adaptive schedule and one in which retrieval trials occurred on the standard schedule.
Outcome measures
| Measure |
Children With Developmental Language Disorder
These children have a significant delay in language development in the absence of hearing impairment, cognitive delay, autism, or neurological injury/disease.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
Children With Typical Language Development
n=7 Participants
Children whose language development is as expected for their age.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
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|---|---|---|
|
Word Meaning Recall Accuracy (Number of Semantic Associations Correctly Recalled) on Adaptive and Standard Retrieval Schedules at 5 Mins
Standard
|
—
|
8.00 number of meanings correctly recalled
Standard Deviation 0.00
|
|
Word Meaning Recall Accuracy (Number of Semantic Associations Correctly Recalled) on Adaptive and Standard Retrieval Schedules at 5 Mins
Adaptive
|
—
|
7.57 number of meanings correctly recalled
Standard Deviation 0.79
|
PRIMARY outcome
Timeframe: 1 week after end of learning periodPopulation: DLD Participants = 0. Study was terminated before DLD group was recruited.
1 week after second learning session, child is asked to recall and say the semantic information associated with each novel referent learned under one of two conditions: one in which retrieval trials occurred on an adaptive schedule and one in which retrieval trials occurred on the standard schedule.
Outcome measures
| Measure |
Children With Developmental Language Disorder
These children have a significant delay in language development in the absence of hearing impairment, cognitive delay, autism, or neurological injury/disease.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
Children With Typical Language Development
n=7 Participants
Children whose language development is as expected for their age.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
|---|---|---|
|
Word Meaning Recall Accuracy (Number of Semantic Associations Correctly Recalled) on Adaptive and Standard Retrieval Schedules at 1 Week
Standard
|
—
|
7.86 number of word meanings correctly recall
Standard Deviation 0.38
|
|
Word Meaning Recall Accuracy (Number of Semantic Associations Correctly Recalled) on Adaptive and Standard Retrieval Schedules at 1 Week
Adaptive
|
—
|
7.43 number of word meanings correctly recall
Standard Deviation 0.98
|
PRIMARY outcome
Timeframe: 1 week after end of learning periodPopulation: DLD Participants = 0. Study was terminated before DLD group was recruited.
Upon hearing a novel word, the child is asked to indicate (by pointing) which picture among 4 options is referred to; for words learned on the adaptive condition and for words learned on the standard condition.
Outcome measures
| Measure |
Children With Developmental Language Disorder
These children have a significant delay in language development in the absence of hearing impairment, cognitive delay, autism, or neurological injury/disease.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
Children With Typical Language Development
n=7 Participants
Children whose language development is as expected for their age.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
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|---|---|---|
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Word Recognition (Number of Words Accurately Identified) on on Adaptive and Standard Retrieval Schedules
Standard
|
—
|
7.29 number of referents correctly recognized
Standard Error 0.29
|
|
Word Recognition (Number of Words Accurately Identified) on on Adaptive and Standard Retrieval Schedules
Adaptive
|
—
|
7.86 number of referents correctly recognized
Standard Error 0.14
|
SECONDARY outcome
Timeframe: at enrollmentPopulation: DLD Participants = 0. Study was halted before DLD group was recruited.
The Peabody Picture Vocabulary is an individually administered, norm-reference test that assesses receptive vocabulary for children and adults ages 2 years 6 months to 90 years and older. Standard scores are derived from number correct. Standard scores can range from a minimum of 40 and 160. Standard scores between 85 and 115 (1 standard deviation above and below the mean of 100) are interpreted as reflecting receptive vocabulary levels expected for age. Scores below 85 are interpreted as reflecting receptive vocabulary levels below what is expected for age.Scores above 115 are interpreted as reflecting receptive vocabulary levels above what is expected for age.
Outcome measures
| Measure |
Children With Developmental Language Disorder
These children have a significant delay in language development in the absence of hearing impairment, cognitive delay, autism, or neurological injury/disease.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
Children With Typical Language Development
n=7 Participants
Children whose language development is as expected for their age.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
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|---|---|---|
|
Peabody Picture Vocabulary Test, Fifth Edition
|
—
|
113.71 score on a scale
Standard Deviation 13.33
|
SECONDARY outcome
Timeframe: at enrollmentPopulation: DLD Participants = 0. Study was terminated before DLD group was recruited.
Primary care-giver provides information regarding highest academic degree attained, converted to years of education
Outcome measures
| Measure |
Children With Developmental Language Disorder
These children have a significant delay in language development in the absence of hearing impairment, cognitive delay, autism, or neurological injury/disease.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
Children With Typical Language Development
n=7 Participants
Children whose language development is as expected for their age.
Retrieval-based word learning: Standard retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). In the standard condition, the remaining retrieval trials for each word will be spaced - occurring only after 3 other words have intervened. This practice schedule is repeated the next day (Day 2).
Retrieval-based word learning: Adaptive retrieval practice schedule: Novel nouns and their meanings are practiced on 2 consecutive days. At the beginning of each learning session, a retrieval trial will immediately follow hearing the word and what it likes (a study trial). For the remainder of the session, there will be spaced retrieval trials for each word - occurring after 3 words have intervened. In the Adaptive condition, children will have additional retrieval opportunities throughout. These will be provided whenever the child does not remember the word form, whether it is an immediate (initial) or space retrieval trial. This practice schedule is repeated the next day (Day 2).
|
|---|---|---|
|
Years of Maternal Education
|
—
|
16.14 years
Standard Deviation 3.08
|
Adverse Events
Children With Developmental Language Disorder
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Children With Typical Language Development
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Dr. Patricia Deevy, Research Associate
Purdue University
Phone: 765-496-1821
Email: [email protected]
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place