Inter-rater reliability and face validity of the Executive Function Performance Test (EFPT)

Introduction Occupational therapists need an instrument to assess executive dysfunctions before patients are discharged from acute wards. The Executive Function Performance Test (EFPT) appears to be suitable, since it evaluates dysfunctions in complex activities. The aim of this study was to translate the EFPT from English into Swedish and to evaluate its properties when used with older persons with mild stroke in an acute setting. Method The study consisted of three parts: (1) a translation procedure using a forward and backward method; (2) evaluation of face validity; (3) inter-rater reliability by four raters (two pairs) who made 34 assessments in 17 older patients with mild stroke in an acute ward. Results The inter-rater reliability for the EFPT was good. The median was 88% of the percentage agreement. No occasional disagreement was found between the raters, but there was a systematic disagreement in one out of 20 items. The translation and face validity process resulted in further clarification of the semantic and cultural equivalence of the EFPT, and the manual was changed accordingly. Conclusion This study showed that inter-rater reliability was good and that the EFPT was found to be an interesting assessment, although further research is needed.