TY - JOUR
T1 - Validity of the executive function performance test in individuals with schizophrenia
AU - Katz, Noomi
AU - Tadmor, Inbal
AU - Felzen, Batya
AU - Hartman-Maeir, Adina
PY - 2007
Y1 - 2007
N2 - The purpose of this study was to examine the reliability and validity of the Executive Function Performance Test (EFPT) in a schizophrenic population. Participants were 30 individuals with the acute phase of schizophrenia and 31 with the chronic stage. Internal consistency using Cronbach's alpha was high (α = .88). Two-way multiple analysis of covariance revealed that the acute group scored significantly higher than the chronic group on almost all tasks and components of the EFPT (p = .045 to .000), supporting construct validity. Moderate to high Spearman correlation coefficients were found between the total EFPT score and the total Behavioral Assessment of the Dysexecutive Syndrome profile and standardized scores within each of the groups (r =.433 to .764; p < .027 to .000), supporting criterion validity. The findings support the use of the EFPT for identifying executive functions in the context of everyday life and instrumental activities of daily living tasks. However, further studies are needed in different populations and cultures.
AB - The purpose of this study was to examine the reliability and validity of the Executive Function Performance Test (EFPT) in a schizophrenic population. Participants were 30 individuals with the acute phase of schizophrenia and 31 with the chronic stage. Internal consistency using Cronbach's alpha was high (α = .88). Two-way multiple analysis of covariance revealed that the acute group scored significantly higher than the chronic group on almost all tasks and components of the EFPT (p = .045 to .000), supporting construct validity. Moderate to high Spearman correlation coefficients were found between the total EFPT score and the total Behavioral Assessment of the Dysexecutive Syndrome profile and standardized scores within each of the groups (r =.433 to .764; p < .027 to .000), supporting criterion validity. The findings support the use of the EFPT for identifying executive functions in the context of everyday life and instrumental activities of daily living tasks. However, further studies are needed in different populations and cultures.
KW - Dysexecutive syndrome
KW - Executive function
KW - Functional assessment
UR - http://www.scopus.com/inward/record.url?scp=44649190431&partnerID=8YFLogxK
U2 - 10.1177/153944920702700202
DO - 10.1177/153944920702700202
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AN - SCOPUS:44649190431
SN - 1539-4492
VL - 27
SP - 44
EP - 51
JO - OTJR Occupation, Participation and Health
JF - OTJR Occupation, Participation and Health
IS - 2
ER -