Trial Outcomes & Findings for Where's the Wif? Referent Selection and Retention (NCT NCT05443438)

NCT ID: NCT05443438

Last Updated: 2026-08-19

Results Overview

Children's choices on each trial of the task will be measured. Correct responses are those to the target (prompted) item - for referent selection, this is the item asked for in the prompt (e.g. shoe, dog)

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

212 participants

Primary outcome timeframe

1 minute

Results posted on

2026-08-19

Participant Flow

Participants were recruited from Stillwater, OK and Dallas, TX

Participant milestones

Participant milestones
Measure
3D-3D
All items presented in 3D form
3D-2D
Initial items in 3D, generalization in 2D
2D-3D
Initial items in 2D, generalization in 3D
2D-2D
Initial items in 2D, generalization in 2D
Overall Study
STARTED
55
55
50
52
Overall Study
COMPLETED
53
51
48
49
Overall Study
NOT COMPLETED
2
4
2
3

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Where's the Wif? Referent Selection and Retention

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
3D-3D
n=53 Participants
All items presented in 3D form
3D-2D
n=51 Participants
Initial items in 3D, generalization in 2D
2D-3D
n=48 Participants
Initial items in 2D, generalization in 3D
2D-2D
n=49 Participants
Initial items in 2D, generalization in 2D
Total
n=201 Participants
Total of all reporting groups
Age, Continuous
24.4 age in months
STANDARD_DEVIATION 4.29 • n=298 Participants
23.78 age in months
STANDARD_DEVIATION 4.29 • n=102 Participants
24.2 age in months
STANDARD_DEVIATION 4.57 • n=400 Participants
24.09 age in months
STANDARD_DEVIATION 4.48 • n=30 Participants
24.12 age in months
STANDARD_DEVIATION 4.41 • n=1389 Participants
Sex: Female, Male
Female
16 Participants
n=298 Participants
19 Participants
n=102 Participants
23 Participants
n=400 Participants
26 Participants
n=30 Participants
84 Participants
n=1389 Participants
Sex: Female, Male
Male
37 Participants
n=298 Participants
32 Participants
n=102 Participants
25 Participants
n=400 Participants
23 Participants
n=30 Participants
117 Participants
n=1389 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=298 Participants
0 Participants
n=102 Participants
0 Participants
n=400 Participants
0 Participants
n=30 Participants
0 Participants
n=1389 Participants
Race (NIH/OMB)
Asian
3 Participants
n=298 Participants
0 Participants
n=102 Participants
0 Participants
n=400 Participants
3 Participants
n=30 Participants
6 Participants
n=1389 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=298 Participants
0 Participants
n=102 Participants
0 Participants
n=400 Participants
0 Participants
n=30 Participants
0 Participants
n=1389 Participants
Race (NIH/OMB)
Black or African American
4 Participants
n=298 Participants
6 Participants
n=102 Participants
4 Participants
n=400 Participants
0 Participants
n=30 Participants
14 Participants
n=1389 Participants
Race (NIH/OMB)
White
34 Participants
n=298 Participants
39 Participants
n=102 Participants
35 Participants
n=400 Participants
41 Participants
n=30 Participants
149 Participants
n=1389 Participants
Race (NIH/OMB)
More than one race
11 Participants
n=298 Participants
6 Participants
n=102 Participants
6 Participants
n=400 Participants
3 Participants
n=30 Participants
26 Participants
n=1389 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=298 Participants
0 Participants
n=102 Participants
3 Participants
n=400 Participants
2 Participants
n=30 Participants
6 Participants
n=1389 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
10 Participants
n=298 Participants
5 Participants
n=102 Participants
9 Participants
n=400 Participants
7 Participants
n=30 Participants
31 Participants
n=1389 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
43 Participants
n=298 Participants
46 Participants
n=102 Participants
38 Participants
n=400 Participants
41 Participants
n=30 Participants
168 Participants
n=1389 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=298 Participants
0 Participants
n=102 Participants
1 Participants
n=400 Participants
1 Participants
n=30 Participants
2 Participants
n=1389 Participants

PRIMARY outcome

Timeframe: 1 minute

Children's choices on each trial of the task will be measured. Correct responses are those to the target (prompted) item - for referent selection, this is the item asked for in the prompt (e.g. shoe, dog)

Outcome measures

Outcome measures
Measure
3D-3D
n=53 Participants
All items presented in 3D form
3D-2D
n=51 Participants
Initial items in 3D, generalization in 2D
2D-3D
n=48 Participants
Initial items in 2D, generalization in 3D
2D-2D
n=49 Participants
Initial items in 2D, generalization in 2D
Accuracy on Referent Selection
77 percent accuracy
Standard Deviation 30
82 percent accuracy
Standard Deviation 26
85 percent accuracy
Standard Deviation 18
84 percent accuracy
Standard Deviation 25

PRIMARY outcome

Timeframe: 5 minutes

Children's choices on each trial of the task will be measured. Correct responses are those to the target (prompted) item - for retention, this is the item asked for in the prompt which are the correct word-object pairing for novel items previously introduced.

Outcome measures

Outcome measures
Measure
3D-3D
n=53 Participants
All items presented in 3D form
3D-2D
n=51 Participants
Initial items in 3D, generalization in 2D
2D-3D
n=48 Participants
Initial items in 2D, generalization in 3D
2D-2D
n=49 Participants
Initial items in 2D, generalization in 2D
Accuracy on Retention
32 percent accuracy
Standard Deviation 25
34 percent accuracy
Standard Deviation 23
40 percent accuracy
Standard Deviation 27
35 percent accuracy
Standard Deviation 24

Adverse Events

3D-3D

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

3D-2D

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

2D-3D

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

2D-2D

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

Sarah Kucker

Southern Methodist University

Phone: 214-768-6282

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place