The validity and reliability of the Turkish version of MacArthur competence assessment tool for treatment decision: Correlates of competence in schizophrenia patients.

Abstract

Introduction: Informed consent is an indispensable condition of the clinical practice for the provision of health care. The main objective of this study is to translate the MacArthur competence assessment tool for treatment (MacCAT-T) into Turkish and evaluate the validity and reliability of the Turkish version in schizophrenia patients and healthy control subjects. Methods: In this cross-sectional study, 30 hospitalized schizophrenia patients and 25 healthy subjects were assessed with MacCAT-T, Mental Competence Evaluation Form for Assessment of Competency (MCEF), Positive and Negative Syndrome Scale, Beck Depression Inventory, Mini Mental State Examination, Wechsler Adult Intelligence Scale (WAIS) – Similarities subtest and the Schedule for Assessing the Three Components of Insight. Psychometric properties of MacCAT-T were examined by intra-class correlation coefficients and Cronbach’s alpha values. Results: Intra-class correlations ranged between 0.83 and 0.99 for four subscales of the tool. Cronbach alpha value of MacCAT-T was found 0.89. Severity of psychopathology and indices of insight were found to be negatively correlated with the subscales of the tool. WAIS-Similarities subtest scores were found to be positively correlated with understanding and reasoning subscales of MacCAT-T. Conclusion: The Turkish version of MacCAT-T is a valid and reliable instrument for Turkish patients. The severity of psychopathology, insight and executive functions were shown to be significantly related to the decision making capacity in patients with schizophrenia.

Capacity to consent to psychotherapy: Reliability of the newly adapted German version of the MacArthur Competence Assessment Tool for Treatment for psychotherapy

“…The present findings are mainly in line with previous studies on the original MacCAT‐T (Grisso et al, 1997) and versions in other languages (Aki et al, 2021; Hernando Robles et al, 2012; Lui et al, 2009; Raffard et al, 2021). Inter‐rater reliability and consistency coefficients that were found for the MacCAT‐PT total sum score in the present study do not substantially differ from those found in more specific clinical samples (e.g., schizophrenia; Aki et al, 2021, Raffard et al, 2021). Thus, the total sum score that is provided by the MacCAT‐PT can be considered as a reliable measure of the overall CCT.…”

“…The major aim of the present study was to investigate the reliability of the German MacCAT-T adapted to the psychotherapeutical context The present findings are mainly in line with previous studies on the original MacCAT-T (Grisso et al, 1997) and versions in other languages (Aki et al, 2021;Hernando Robles et al, 2012;Lui et al, 2009;Raffard et al, 2021). Inter-rater reliability and consistency coefficients that were found for the MacCAT-PT total T A B L E 2 Descriptive statistics for the MacCAT-PT for the total sample and the subsamples.…”

“…Inter-rater reliability and consistency coefficients that were found for the MacCAT-PT total T A B L E 2 Descriptive statistics for the MacCAT-PT for the total sample and the subsamples. sum score in the present study do not substantially differ from those found in more specific clinical samples (e.g., schizophrenia; Aki et al, 2021, Raffard et al, 2021. Thus, the total sum score that is provided by the MacCAT-PT can be considered as a reliable measure of the overall CCT.…”

“…With the exception of Understanding , no other MacCAT‐PT scale appeared to feature sufficient psychometric properties to justify a reliable operationalization of the corresponding CCT domain. While Appreciation has previously been reported to show an unacceptable internal consistency in a schizophrenia sample (Aki et al, 2021), most studies indicated a sufficient reliability for all scales in clinical samples including specific and homogenous diagnoses (Grisso et al, 1997; Hernando Robles et al, 2012; Lui et al, 2009; Raffard et al, 2021). It can thus be suggested that Appreciation may have been prone to the psychotherapeutical context of the present study as the inclusion of patients with an inherent desire to partake in psychotherapy could increase the risk of inducing sampling bias.…”

“…Dunn and Jeste (2001) reviewed eight out of nine studies supporting a potential positive association between understanding and educational level. Since not all domains were found to be significantly associated with educational level, it has yet to be clarified, which specific CCT domains may be affected by educational level (Aki et al, 2021; Vollmann, 2008).…”