Reliability and Validity of the Spanish Version of the Executive Function Performance Test (EFPT) in Assessing People in Treatment for Substance Addiction.

IMPORTANCE: Assessing people's executive function (EF) during addiction treatment makes it possible to design individualized occupational goals. OBJECTIVE: To determine the reliability and validity of the Spanish version of the Executive Function Performance Test (EFPT) in the occupational assessment of people being treated for substance addiction. DESIGN: Cross-sectional, observational study to determine the EFPT's internal consistency as well as its convergent and discriminant validity with complementary tests. SETTING: A public, free addiction treatment center operated by Madrid Salud (Madrid City Council, Spain). PARTICIPANTS: Fifty-two people referred to an occupational therapy department for evaluation and intervention. Inclusion was based on Diagnostic and Statistical Manual of Mental Disorders (4th ed., text revision) criteria for substance abuse or dependence; the exclusion criterion consisted of any circumstances that made it difficult for a person to understand or perform the test. OUTCOMES AND MEASURES: The EFPT, other occupational tests (Allen Cognitive Level Screen-5, Lowenstein Occupational Therapy Cognitive Assessment), and a battery of neuropsychological EF tests. RESULTS: The EFPT had an unequivocal unifactorial structure and showed strong correlations between its components and adequate consistency with the scales and the complete test. As expected, the EFPT correlated with the neuropsychological tests with a considerable effect size (-.40 < r < -.60). CONCLUSIONS AND RELEVANCE: The EFPT's psychometric properties are adequate to assess the EF of people being treated for substance addiction from an occupational perspective using real activities of daily living (ADLs). WHAT THIS ARTICLE ADDS: The results show that the EFPT can be used to assess performance of ADLs without needing to use tests from disciplines other than occupational therapy. Further studies in different sociocultural settings are needed to generalize the results.

Loewenstein Occupational Therapy Cognitive Assessment to Evaluate People with Addictions.

BACKGROUND: The LOTCA (Loewenstein Occupational Therapy Cognitive Assessment) battery is a cognitive screening test which is widely used in occupational health. However, no work has been found that explores its use in addiction treatment. OBJECTIVES OF STUDY: To explore the convergent validity of LOTCA with neuropsychological tests that assess related cerebral functional areas. METHODS: The LOTCA, along with a battery of neuropsychological tests, was administered to a sample of 48 subjects who start a treatment by substance or gambling addictions. FINDINGS: A correlational pattern was observed of a considerable magnitude between the effects of the LOTCA scales and those of some neuropsychological tests, but not with others. There is barely any convergence in measures with memory and executive function tests. RELEVANCE TO CLINICAL PRACTICE: There is a lack of research applying test of occupational assessment to populations of patients treated by addictive behaviors. The LOTCA seems to be a reliable and valid test for preliminary screening of function in certain cognitive areas, easy, and quick to use (around 30 minutes). However, it must be supplemented with other tests for a full and ecological assessment of patients. LIMITATIONS: An incident, small-size sample. RECOMMENDATIONS FOR FURTHER RESEARCH: New studies are needed to explore the applicability, diagnostic validity, and whole psychometric quality of the test in addiction-related treatment.