NCT05857592

Brief Summary

In the proposed study, the investigators aim to investigate whether the existing ABAS-3 self-report questionnaire is suitable to be completed meaningfully by individuals who are perceived as having mild intellectual disability (55\<IQ\<85) based on cognitive impairment. Based on the participants' experiences and researchers' expertise, the investigators develop a 'more inclusive' self-report version. The investigators then look at the extent to which participants indicate that they understand this version better, based on user experiences and limited psychometric research. In doing so, the investigators also compare the outcomes of the self-report and informant-report variant.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jul 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 15, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

May 12, 2023

Completed
2 months until next milestone

Study Start

First participant enrolled

July 1, 2023

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2023

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2024

Completed
Last Updated

May 10, 2024

Status Verified

May 1, 2024

Enrollment Period

4 months

First QC Date

March 15, 2023

Last Update Submit

May 8, 2024

Conditions

Keywords

self-report questionnairesinclusive diagnosticseasy-read languageadaptive functioning

Outcome Measures

Primary Outcomes (8)

  • Scoring comprehension - T0

    Degree to which the qualitative information provided by the participant aligns with the self-reported score on the original version of the ABAS-3 (Adaptive Behaviour Assessment System - Third Edition) questionnaire. Outcomes are 0, scores align, -1, scores are lower than answer would suggest, +1, score is higher than answer would suggest.

    At baseline (T0)

  • Scoring comprehension - T1

    Degree to which the qualitative information provided by the participant aligns with the self-reported score on the original version of the ABAS-3 (Adaptive Behaviour Assessment System - Third Edition) questionnaire. Outcomes are 0, scores align, -1, scores are lower than answer would suggest, +1, score is higher than answer would suggest.

    Approximately 8 weeks after baseline (T1)

  • Text comprehension - cognitive interviews T0

    Level of verbal understanding of questions in the questionnaire - qualitative analysis of answers from cognitive interviews during assessment of the ABAS-3 (Adaptive Behaviour Assessment System - Third Edition). Terms and concepts that were misinterpreted, participant utterings of confusion of statements of difficulty

    At baseline (T0)

  • Text comprehension - cognitive interviews T1

    Level of verbal understanding of questions in the questionnaire - qualitative analysis of answers from cognitive interviews during assessment of an adapted version of the ABAS-3 (Adaptive Behaviour Assessment System - Third Edition). Terms and concepts that were misinterpreted, participant utterings of confusion of statements of difficulty.

    Approximately 8 weeks after baseline (T1)

  • Comprehension of instructions - cognitive interviews T0

    Level of verbal understanding of the instructions in the questionnaire - original version of the ABAS-3 (Adaptive Behaviour Assessment System - Third Edition). Number of elements that were correctly identiefied (out of possible 10).

    At baseline (T0)

  • Comprehension of instructions - cognitive interviews T1

    Level of verbal understanding of the instructions in the questionnaire - adapted version of the ABAS-3 (Adaptive Behaviour Assessment System - Third Edition). Number of elements that were correctly identiefied (out of possible 10).

    Approximately 8 weeks after baseline (T1)

  • Overall difficulty score - T0

    Likert scale rating of the overall difficulty of items of original version of the ABAS-3 (Adaptive Behaviour Assessment System - Third Edition) by participants (from 1. very easy - 5. very difficult)

    At baseline (T0)

  • Overall difficulty score - T1

    Likert scale rating of the overall difficulty of items of adapted version of the ABAS-3 (Adaptive Behaviour Assessment System - Third Edition) by participants (from 1. very easy - 5. very difficult)

    Approximately 8 weeks after baseline (T1)

Secondary Outcomes (5)

  • Self-reported Adaptive Functioning - original ABAS-3 scores

    At baseline (T0)

  • Self-reported Adaptive Functioning - adapted ABAS-3 scores

    Approximately 8 weeks after baseline (T1)

  • Informant-reported Adaptive Functioning - original ABAS-3 scores

    At baseline (T0)

  • Informant-reported Adaptive Functioning - adapted ABAS-3 scores

    Approximately 8 weeks after baseline (T1)

  • Self-reported Adaptive functioning - SCAF

    At baseline (T0)

Study Arms (1)

Experimental

EXPERIMENTAL

Persons with Mild Intellectual Disability (MID) or Borderline Intellectual Functioning (BIF) complete the ABAS-3 in assisted form on two occasions: the original version the first time and an adapted version after a few weeks.

Diagnostic Test: Adaptive functioning self-report questionnaireDiagnostic Test: Adaptive functioning self-report questionnaire - adapted

Interventions

A self-report questionnaire for assessing level of adaptive functioning

Experimental

A self-report questionnaire for assessing level of adaptive functioning, adapted to the communication level of the participant

Experimental

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 years or older
  • Last known Total Intelligence Quotient (TIQ) 55 - 85
  • Receiving support from a care organization for persons with ID.
  • A care worker who knows the participant for at least a year and knows him well enough tot complete the informant version of the ABAS-3 is available.

You may not qualify if:

  • Severe physical or sensory impairment limiting ability to participate.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Koraal

Sittard, L, 6130 PC, Netherlands

Location

Related Publications (1)

  • Kooijmans, R., Mercera, G., Langdon, P. E., & Moonen, X. (2022). The adaptation of self-report measures to the needs of people with intellectual disabilities: A systematic review. Clinical Psychology: Science and Practice.

    BACKGROUND

Study Officials

  • Roel Kooijmans, MSc

    Koraal

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
SINGLE GROUP
Model Details: A mixed-method repeated-measures design will be used: data are collected using both qualitative and quantitative methods at two points in time (before and after adaptation) from the same participants.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Senior Researcher

Study Record Dates

First Submitted

March 15, 2023

First Posted

May 12, 2023

Study Start

July 1, 2023

Primary Completion

October 31, 2023

Study Completion

May 1, 2024

Last Updated

May 10, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Study data are highly specific for this study and not relevant for sharing with other researchers, except for validation of results in exceptional circumstances. When required, relevant data will be made available upon request to reviewers or auditors, subject to privacy regulations. Only anonymized data will be shared.

Locations