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.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

36 participants

Primary outcome timeframe

T3 is approximately 14 months after T1 (baseline).

Results posted on

2026-04-13

Participant Flow

Participant milestones

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

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

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

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

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

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

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

CAT Control Group

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

Monique Udell

Oregon State University

Phone: 541-737-9154

Results disclosure agreements

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