1. Estimation of the minimal clinically important difference on the Aberrant Behaviour Checklist-Irritability (ABC-I) for people with intellectual disabilities who display aggressive challenging behaviour: A triangulated approach.
- Author
-
Hassiotis, Angela, Melville, Craig, Jahoda, Andrew, Strydom, Andre, Cooper, Sally-Ann, Taggart, Laurence, Cooper, Vivien, Steed, Elizabeth, Ali, Afia, Hunter, Rachael, Elahi, Farah, Chauhan, Umesh, Rapaport, Penny, and Marston, Louise
- Subjects
- *
PEOPLE with intellectual disabilities , *INTELLECTUAL disabilities , *PEOPLE with disabilities , *CLINICAL trials , *RESEARCH , *CAREGIVERS , *META-analysis , *RESEARCH methodology , *EVALUATION research , *COMPARATIVE studies , *AGGRESSION (Psychology) - Abstract
Background: The minimal clinically important difference (MCID) is relevant in the estimation of improvement in a patient outcome.Aim: To determine the MCID on the Aberrant Behaviour Checklist-Irritability (ABC-I), widely used to measure the effects of intervention for aggressive challenging behaviour in people with intellectual disabilities.Method and Procedures: We utilised distribution and anchor based methods to estimate the ABC-I MCID. We extracted data from 15 randomised controlled trials (RCTs) for meta-analysis. We conducted three online workshops with family carers and professionals to consider meaningful change in case vignettes of increasing severity of aggressive challenging behaviour.Outcomes and Results: We did not find overlap in the range of values between the two approaches. The meta-analysis indicated a range of MCID on the ABC-I (0.05, 4.94) whilst the anchor-based estimation indicated a larger change (6.6, 16.6).Conclusions and Implications: The MCID is essential in interpreting the results from intervention studies. The present work was undertaken as part of a wider programme on the development and testing of a psychosocial intervention for aggressive challenging behaviour, and it is of interest to researchers in justifying how they choose and determine the MCID on the outcome of interest. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF