Evaluation of CO-OP for Adolescents With Mild Intellectual Disability
Intellectual Disability, Mild
What this study involves
The registry says this study is recruiting. Individual locations may have different availability.
- Study type
- Interventional
- Phase
- Not applicable
- Age range
- 13 years - 17 years
- Sex eligible
- All sexes
- Healthy volunteers
- Not accepted
- Participants
- 60 Estimated
These are starting points, not an eligibility decision. The research team must review the full requirements.
About the research
Intellectual disability (ID) affects a person throughout life and includes difficulties to manage what is expected in everyday life based on age. One difficulty is to create strategies for and solve problems related to everyday occupations. Treatment options with good evidence to enhance occupational performance for persons with ID are limited. The Cognitive Orientation to Daily Occupational Performance (CO-OP) is an approach with good evidence within other diagnostic groups, i.e. adolescents with cerebral palsy. CO-OP has a unique person-centered approach where the person chooses his/her own goals and creates his/her own strategies to reach them. Initial research shows potential for CO-OP with adolescents with ID, although due to scientific flaws there is still a lack of evidence regarding feasibility and effectiveness for adolescents with ID. Based on the results with other diagnostic groups and clinical knowledge and experience, CO-OP can be assumed to be feasible and effective for adolescents with ID and to have a long term effect transferred to everyday life in a way other treatment options do not.
The aim of the project is to describe and evaluate CO-OP for adolescents with mild ID. Participants will be adolescents aged 13-17 and their parents. The project is designed as a feasibility study with two qualitative, one quantitative and one mixed method data collection. The quantitative data will be ordinal and nominal data from observational and self-assessment assessments. The mixed methods include comparison between filmed sessions and the CO-OP manual, use of field notes to analyse fidelity and needs for adaptations, and comparison between the CO-OP manual and policy documents. The qualitative outcome will be experiences by the adolescents and perceptions of CO-OP by parents.
Who may be able to participate?
The list below is the sponsor’s full registry wording. It can include conditions, prior treatment, test results and other requirements. A match in search does not mean you qualify.
Study I-II
Inclusion criteria
- 13-17 years
- Diagnosed mild intellectual disability
- Motivation to reach self-selected goals
- Ability to identify those goals
- Possibility to meet once a week for ten weeks
- Access to a parent or significant other for support during intervention
Exclusion criteria:
- Movement related diagnosis (i.e. cerebral palsy or neuro muscular diseases)
- Diagnosed attention deficit hyperactivity disorder/attention deficit disorder (ADHD/ADD) or autism spectrum disorder
- Progressive diagnoses
- Need for language interpreting
- Need for alternative and augmentative communication (i.e. pictures or signs).
Study III
Inclusion criteria:
- 13-17 years
- Diagnosed mild intellectual disability
- Completed CO-OP intervention or at lest half way trough the intervention
- Opportunity to meet physically for an interview with in a month post and 6 months post intervention.
- CO-OP intervention done with high fidelity to CO-OP format with a CO-OP therapist that has written field notes, preferrably recruited from study I-II.
Exclusion criteria:
- Movement related diagnosis (i.e. cerebral palsy or neuro muscular diseases)
- Diagnosed attention deficit hyperactivity disorder/attention deficit disorder (ADHD/ADD) or autism spectrum disorder
- Progressive diagnoses
- Need for language interpreting
- Need for alternative and augmentative communication (i.e. pictures or signs).
Study IV
Inclusion criteria:
- Parents with legal guardianship that lives full- or part time with an adolescent reaching the inclusion criteria for study I who has completed CO-OP within or out of the project
- Opportunity to meet physically for an interview with in a month post and 6 months post the adolescent's completed, or at least half way through, CO-OP intervention.
Exclusion criteria:
- Need for language interpreting
- Need for alternative and augmentative communication (i.e. pictures or signs)
- Irregular and brief living with the adolescent comparable to less than half-time and therefore does not observe the adolescent's occupational performance enough to answer the interview questions.
Treatment, groups and participation
The registry may describe treatments and study duration without a complete visit calendar. Ask the study team for the exact schedule, procedures, risks, costs and alternatives. Keep your usual care plan unless your treating clinician tells you otherwise.
- Assignment
- Not applicable
- Masking
- No masking
CO-OP for adolescents with mild intellectual disability
CO-OP intervention during 10 weeks. Outcomes measures at baseline, directly after and 6 months after intervention
Other: The Cognitive Orientation to Daily Occupational Performance Approach
The Cognitive Orientation to Daily Occupational Performance Approach OTHER
CO-OP is a client-centred, performance-based, problem-solving focused, occupation-focused and occupation-based intervention. In CO-OP the person is guided to use a meta-cognitive strategy to find his or her own strategies for specific activities. The main purpose is to enable meta-cognitive thinking in every day activities, leading to enhanced self-efficacy, occupational performance and independency.
What researchers are measuring
Outcome measures describe what is being studied. They are not proof that a treatment works.
Primary measures
Change in Canadian Occupational Performance Measure - performance
Time frame: Baseline, up to 4 weeks post intervention and 6 months post intervention
Self-rated occupational performance in four chosen goal activities, rated 1-10
Change in Canadian Occupational Performance Measure - satisfaction
Time frame: Baseline, up to 4 weeks post intervention and 6 months post intervention
Self-rated satisfaction with performance in four chosen goal activities, rated 1-10
Change in Performance Quality Rating Scale - occupational performance quality
Time frame: Baseline, up to 4 weeks post intervention and 6 months post intervention
Observed performance quality during performing four chosen goal activities thas is filmed and rated 1-10.
Secondary measures
Change in General Self-Efficacy Scale - self-efficacy
Time frame: Baseline, up to 4 weeks post intervention and 6 months post intervention
Self-rated self-efficacy, 10 statements rated 1-4.
Experiences of CO-OP as a patient - qualitative
Time frame: Up to 4 weeks post intervention and 6 months post intervention
Qualitative semi-structured interviews analyzed using qualitative content analysis.
Perceptions of CO-OP as a parent of a patient - qualitative
Time frame: Up to 4 weeks post intervention and 6 months post intervention
Qualitative semi-structured interviews analyzed using phenomenographic analysis
Other measures
Feasibility: Acceptability
Time frame: Up to 4 weeks post intervention and 6 months post intervention
Acceptability will be evaluated by structured interviews. The interview consists of five yes/no questions and a 10 point scale on how much effort the CO-OP intervention required. Data will be on nominal and ordinal level.
Feasibility: Possible expansion to a new group
Time frame: 2024-2025
Qualitative text analysis in which contents of the CO-OP manual will be compared with norms and values in the national policy documents for children and youth habilitation. This is carried out to evaluate whether it would be possible to expand this intervention to a new group of patients (adolescents with mild intellectual disability). The data collection is not related to the individual participants.
Feasibility: Adaptation
Time frame: Up to 1 year after intervention.
Whether the CO-OP approach needs any adaptations in order to be feasible for adolescents with mild intellectual disability will be evaluated. This will be done by collecting field notes written by CO-OP therapists and a text analysis with descriptive comparison between notes and the CO-OP manual.
Review the complete result tables and limitations in the official record.
Open official results ↗Research locations (3)
The overall study status and a local site’s status can differ. Confirm that location’s availability before traveling.
3 locations
Region SkåneKristianstad, Skåne County, SwedenRecruiting
Region VärmlandKarlstad, Värmland County, SwedenRecruiting
Region Örebro CountyÖrebro, SwedenRecruiting
Study team and timeline
- Lead sponsor
- Örebro University, Sweden
- Study start
- Jan 16, 2025 Actual
- Primary completion
- 2027-12 Estimated
- Study completion
- 2027-12 Estimated
- First posted
- Nov 15, 2024 Actual
- Last updated
- Nov 10, 2026 Actual
Official study contacts
Official study title
Evaluation of The Cognitive Orientation to Daily Occupational Performance (CO-OP) Approach for Adolescents With Mild Intellectual Disability
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Source: ClinicalTrials.gov API v2. Information is submitted by sponsors and investigators. NLM does not approve the safety or science of all listed studies. Registry disclaimer.
Retrieved: Nov 12, 2026 · Last registry update: Nov 10, 2026
