Trial Outcomes & Findings for Development and Evaluation CAT and Youth (NCT NCT05950672)
NCT ID: NCT05950672
Last Updated: 2026-04-13
Results Overview
Cats in the intervention group participated in a structured three-phase assessment: two minutes in the testing room with their child owner, two minutes alone, and then a reunion phase when the child returns. All sessions were video recorded. Two independent raters classified each cat's attachment style using a predefined behavioral ethogram, with primary emphasis on the cat's response during the reunion. Possible attachment classifications include Secure, Insecure-Ambivalent, Insecure-Avoidant, Insecure-Disorganized. Data presented describe within-cat change in attachment classification from T1 to T3, specifically the shift from insecure (inclusive of ambivalent, avoidant, and disorganized) to secure attachment.
COMPLETED
NA
36 participants
T3 is approximately 14 months after T1 (baseline).
2026-04-13
Participant Flow
Participant milestones
| Measure |
CAT Intervention Group
The experimental group will take part in the CAT intervention (Table 1) after baseline assessments. All cat-training methods will be positive reinforcement based, using owner-approved food, toys and social reinforcers (e.g. petting).
|
CAT Control Group
Control participants will not participate in the CAT intervention. After the completion of the third assessment (end of proposal-related data collection), control participants will be offered the opportunity to participate in cat training classes.
|
|---|---|---|
|
T1: Enrollment + approx. 6 weeks
STARTED
|
19
|
17
|
|
T1: Enrollment + approx. 6 weeks
COMPLETED
|
18
|
17
|
|
T1: Enrollment + approx. 6 weeks
NOT COMPLETED
|
1
|
0
|
|
T2: approx. 6 weeks after T1
STARTED
|
18
|
17
|
|
T2: approx. 6 weeks after T1
COMPLETED
|
18
|
16
|
|
T2: approx. 6 weeks after T1
NOT COMPLETED
|
0
|
1
|
|
T3: approximately 1 year after T2
STARTED
|
18
|
16
|
|
T3: approximately 1 year after T2
COMPLETED
|
17
|
11
|
|
T3: approximately 1 year after T2
NOT COMPLETED
|
1
|
5
|
Reasons for withdrawal
| Measure |
CAT Intervention Group
The experimental group will take part in the CAT intervention (Table 1) after baseline assessments. All cat-training methods will be positive reinforcement based, using owner-approved food, toys and social reinforcers (e.g. petting).
|
CAT Control Group
Control participants will not participate in the CAT intervention. After the completion of the third assessment (end of proposal-related data collection), control participants will be offered the opportunity to participate in cat training classes.
|
|---|---|---|
|
T1: Enrollment + approx. 6 weeks
Withdrawal by Subject
|
1
|
0
|
|
T2: approx. 6 weeks after T1
Lost to Follow-up
|
0
|
1
|
|
T3: approximately 1 year after T2
Lost to Follow-up
|
1
|
5
|
Baseline Characteristics
Missing data are answers that children chose to leave blank.
Baseline characteristics by cohort
| Measure |
CAT Intervention Group
n=19 Participants
The experimental group will take part in the CAT intervention (Table 1) after baseline assessments. All cat-training methods will be positive reinforcement based, using owner-approved food, toys and social reinforcers (e.g. petting).
|
CAT Control Group
n=17 Participants
Control participants will not participate in the CAT intervention. After the completion of the third assessment (end of proposal-related data collection), control participants will be offered the opportunity to participate in cat training classes.
|
Total
n=36 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Sex/Gender, Customized
Male
|
13 Participants
n=193 Participants
|
9 Participants
n=193 Participants
|
22 Participants
n=386 Participants
|
|
Sex/Gender, Customized
Unknown Gender
|
0 Participants
n=193 Participants
|
3 Participants
n=193 Participants
|
3 Participants
n=386 Participants
|
|
Ethnicity (NIH/OMB)
Hispanic or Latino
|
3 Participants
n=193 Participants
|
1 Participants
n=193 Participants
|
4 Participants
n=386 Participants
|
|
Ethnicity (NIH/OMB)
Not Hispanic or Latino
|
16 Participants
n=193 Participants
|
16 Participants
n=193 Participants
|
32 Participants
n=386 Participants
|
|
Ethnicity (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=193 Participants
|
0 Participants
n=193 Participants
|
0 Participants
n=386 Participants
|
|
Race (NIH/OMB)
American Indian or Alaska Native
|
3 Participants
n=193 Participants
|
2 Participants
n=193 Participants
|
5 Participants
n=386 Participants
|
|
Race (NIH/OMB)
Asian
|
0 Participants
n=193 Participants
|
0 Participants
n=193 Participants
|
0 Participants
n=386 Participants
|
|
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
|
0 Participants
n=193 Participants
|
0 Participants
n=193 Participants
|
0 Participants
n=386 Participants
|
|
Race (NIH/OMB)
Black or African American
|
0 Participants
n=193 Participants
|
1 Participants
n=193 Participants
|
1 Participants
n=386 Participants
|
|
Race (NIH/OMB)
White
|
14 Participants
n=193 Participants
|
12 Participants
n=193 Participants
|
26 Participants
n=386 Participants
|
|
Race (NIH/OMB)
More than one race
|
2 Participants
n=193 Participants
|
2 Participants
n=193 Participants
|
4 Participants
n=386 Participants
|
|
Race (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=193 Participants
|
0 Participants
n=193 Participants
|
0 Participants
n=386 Participants
|
|
Physical Activity - Walking
Child does not walk cat
|
13 Participants
n=193 Participants • Missing data are answers that children chose to leave blank.
|
8 Participants
n=193 Participants • Missing data are answers that children chose to leave blank.
|
21 Participants
n=386 Participants • Missing data are answers that children chose to leave blank.
|
|
Physical Activity - Walking
Missing data
|
1 Participants
n=193 Participants • Missing data are answers that children chose to leave blank.
|
6 Participants
n=193 Participants • Missing data are answers that children chose to leave blank.
|
7 Participants
n=386 Participants • Missing data are answers that children chose to leave blank.
|
|
Age, Continuous
|
11.9 years
n=193 Participants
|
12.4 years
n=193 Participants
|
12.2 years
n=386 Participants
|
|
Sex/Gender, Customized
Female
|
6 Participants
n=193 Participants
|
5 Participants
n=193 Participants
|
11 Participants
n=386 Participants
|
|
Cat Attachment Test
Secure Attachment
|
5 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
5 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
10 Participants
n=386 Participants • Missing data is one video of the Cat Attachment Test.
|
|
Cat Attachment Test
Insecure-Ambivalent Attachment
|
2 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
0 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
2 Participants
n=386 Participants • Missing data is one video of the Cat Attachment Test.
|
|
Cat Attachment Test
Insecure-Avoidant Attachment
|
11 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
11 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
22 Participants
n=386 Participants • Missing data is one video of the Cat Attachment Test.
|
|
Cat Attachment Test
Insecure-Disorganized Attachment
|
0 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
0 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
0 Participants
n=386 Participants • Missing data is one video of the Cat Attachment Test.
|
|
Cat Attachment Test
Unclassifiable
|
0 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
1 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
1 Participants
n=386 Participants • Missing data is one video of the Cat Attachment Test.
|
|
Cat Attachment Test
Missing Data
|
1 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
0 Participants
n=193 Participants • Missing data is one video of the Cat Attachment Test.
|
1 Participants
n=386 Participants • Missing data is one video of the Cat Attachment Test.
|
|
Physical Activity - Walking
Child walks cat
|
5 Participants
n=193 Participants • Missing data are answers that children chose to leave blank.
|
3 Participants
n=193 Participants • Missing data are answers that children chose to leave blank.
|
8 Participants
n=386 Participants • Missing data are answers that children chose to leave blank.
|
|
Emotional Support (Ages 8-17) - Fixed Form
|
43.70 T-score
STANDARD_DEVIATION 9.90 • n=193 Participants
|
44.31 T-score
STANDARD_DEVIATION 6.10 • n=193 Participants
|
43.99 T-score
STANDARD_DEVIATION 8.22 • n=386 Participants
|
PRIMARY outcome
Timeframe: T3 is approximately 14 months after T1 (baseline).Population: The difference between the number enrolled and the number analyzed reflects the requirements of the Secure Base Test, which requires participation by both the child and the cat. One child remained enrolled and completed other study procedures, but their cat did not participate in the Secure Base Test at T3. This participant was therefore included in the retention totals but not in the analytic sample for this measure. The other participants did not respond to scheduling attempts for T3.
Cats in the intervention group participated in a structured three-phase assessment: two minutes in the testing room with their child owner, two minutes alone, and then a reunion phase when the child returns. All sessions were video recorded. Two independent raters classified each cat's attachment style using a predefined behavioral ethogram, with primary emphasis on the cat's response during the reunion. Possible attachment classifications include Secure, Insecure-Ambivalent, Insecure-Avoidant, Insecure-Disorganized. Data presented describe within-cat change in attachment classification from T1 to T3, specifically the shift from insecure (inclusive of ambivalent, avoidant, and disorganized) to secure attachment.
Outcome measures
| Measure |
CAT Intervention Group
n=15 Participants
The experimental group will take part in the CAT intervention (Table 1) after baseline assessments. All cat-training methods will be positive reinforcement based, using owner-approved food, toys and social reinforcers (e.g. petting).
|
CAT Control Group
n=10 Participants
Control participants will not participate in the CAT intervention. After the completion of the third assessment (end of proposal-related data collection), control participants will be offered the opportunity to participate in cat training classes.
|
|---|---|---|
|
Number of Participants Whose Cats Changed From Insecure to Secure Attachment Classification From T1 to T3
Number of participants' cats whose attachment style shifted from insecure to secure
|
6 Participants
|
1 Participants
|
SECONDARY outcome
Timeframe: T2 is approximately 6 weeks after T1 (baseline).Population: These data were analyzed only at T2, when 18 participants were enrolled in the CAT intervention group and 16 were enrolled in the control group. Although participants were assessed at T1, T2, and T3, there were not enough completed responses for this item at T3 to support a meaningful analysis. Five participants also had missing responses at T2 and were excluded from the analysis for this variable.
The Cat Care Responsibility Inventory "Walk" variable reflected responses to the item, "Usually walks cat." Children indicated the household member for whom this statement was most true (e.g., self, mother, father, sibling, or other). For analysis, responses were coded as a binary variable such that s child either participated in walking the cat (alone or with others in the household) or did not. These binary outcomes were then compared across time points and participant groups.
Outcome measures
| Measure |
CAT Intervention Group
n=18 Participants
The experimental group will take part in the CAT intervention (Table 1) after baseline assessments. All cat-training methods will be positive reinforcement based, using owner-approved food, toys and social reinforcers (e.g. petting).
|
CAT Control Group
n=16 Participants
Control participants will not participate in the CAT intervention. After the completion of the third assessment (end of proposal-related data collection), control participants will be offered the opportunity to participate in cat training classes.
|
|---|---|---|
|
Number of Participants Who Participated in Walking Their Cat at T2
|
18 Participants
|
11 Participants
|
OTHER_PRE_SPECIFIED outcome
Timeframe: T2 is approximately 6 weeks after T1 (baseline).Participants completed a 7-item Emotional Support survey from the NIH Toolbox (NIH Toolbox Item Bank v2.0), validated for children ages 8-17. The survey uses a five-point Likert scale (Never, Rarely, Sometimes, Usually, Always) to assess children's experiences of emotional support during the past month. Items ask about perceived access to supportive relationships over the preceding month. Sample question: "I have someone who will listen to me when I need to talk." Scoring Process: Each survey is scored using Item Response Theory (IRT). An IRT-derived theta score is generated for each participant, as is an Uncorrected Standard Score (T-score). Interpretation: For the NIH Toolbox Emotional Support Survey, higher scores are indicative of more emotional support. Scores 1 SD or more below the mean (T ≤ 40) suggest low levels of support, and scores 1 SD or more above the mean (T ≥ 60) suggest high levels of support. T-scores ≤ 40 may warrant heightened surveillance or concern.
Outcome measures
| Measure |
CAT Intervention Group
n=18 Participants
The experimental group will take part in the CAT intervention (Table 1) after baseline assessments. All cat-training methods will be positive reinforcement based, using owner-approved food, toys and social reinforcers (e.g. petting).
|
CAT Control Group
n=16 Participants
Control participants will not participate in the CAT intervention. After the completion of the third assessment (end of proposal-related data collection), control participants will be offered the opportunity to participate in cat training classes.
|
|---|---|---|
|
NIH Toolbox Emotional Support (Ages 8-17) Fixed Form: Uncorrected Standard T-score at T2
T1
|
44.16 T-score
Standard Deviation 9.97
|
44.34 T-score
Standard Deviation 6.30
|
|
NIH Toolbox Emotional Support (Ages 8-17) Fixed Form: Uncorrected Standard T-score at T2
T2
|
44.72 T-score
Standard Deviation 11.65
|
44.76 T-score
Standard Deviation 6.18
|
Adverse Events
CAT Intervention Group
CAT Control Group
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place