INVESTIGATING THE RELIABILITY AND VALIDITY OF THE POWER OF FOOD SCALE (PFS)

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ASHRAFI EMAD; KACHOOEI MOHSEN; GHAZAGHI MAHSA

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Journal: KNOWLEDGE & RESEARCH IN APPLIED PSYCHOLOGY Year:2015 | Volume:16 | Issue:3 (61) Page(s): 0-0

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Information Journal Paper

Title

INVESTIGATING THE RELIABILITY AND VALIDITY OF THE POWER OF FOOD SCALE (PFS)

Author(s)

ASHRAFI EMAD | KACHOOEI MOHSEN | GHAZAGHI MAHSA | Issue Writer Certificate

Keywords

EATING BEHAVIORQ2

FOOD ENVIRONMENTQ2

POWER OF FOOD SCALE (PFS)Q2

CONFIRMATORY FACTOR ANALYSISQ2

STUDENTSQ1

Abstract

The present study aimed at investigating the reliability and validity of the Power of Food Scale (PFS) (Lowe, Butryn, Didie, Annunziato, Thomas et al., 2009) among Iranian STUDENTS. 701 STUDENTS, as participants, completed PFS, external eating subscale of Dutch EATING BEHAVIOR Questionnaire (DEBQ) (Van Strien, Frijters, Bergers & Defares, 1986) and the Restraint Scale (RS) (Herman & Polivy, 1980). To evaluate validity of the scale construct, CONFIRMATORY FACTOR ANALYSIS was used. Also, Pearson correlation was used to establish convergent and discriminant validity between PFS and the External Eating subscale of DEBQ, and between PFS and RS. The results of the CONFIRMATORY FACTOR ANALYSIS showed that the current model of PFS along with three subscales and a total aggregate score fit the data well. PFS Cronbach’s alpha was 0.88 and a four-month testretest PFS score was 0.65. Also, correlations between PFS and External Eating Subscale of DEBQ (r=0.67; P<0.01); PFS and RS (r=0.24; P<0.01) indicated an appropriate convergent and discriminant validity. The Power of Food Scale (PFS) is a brief and useful tool developed to assess the psychological impact of today food-abundant environments. This scale can be used to study EATING BEHAVIOR and also differences between homeostatic and hedonic hunger.

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APA: Copy

ASHRAFI, EMAD, KACHOOEI, MOHSEN, & GHAZAGHI, MAHSA. (2015). INVESTIGATING THE RELIABILITY AND VALIDITY OF THE POWER OF FOOD SCALE (PFS). KNOWLEDGE & RESEARCH IN APPLIED PSYCHOLOGY, 16(3 (61)), 0-0. SID. https://sid.ir/paper/164001/en

Vancouver: Copy

ASHRAFI EMAD, KACHOOEI MOHSEN, GHAZAGHI MAHSA. INVESTIGATING THE RELIABILITY AND VALIDITY OF THE POWER OF FOOD SCALE (PFS). KNOWLEDGE & RESEARCH IN APPLIED PSYCHOLOGY[Internet]. 2015;16(3 (61)):0-0. Available from: https://sid.ir/paper/164001/en

IEEE: Copy

EMAD ASHRAFI, MOHSEN KACHOOEI, and MAHSA GHAZAGHI, “INVESTIGATING THE RELIABILITY AND VALIDITY OF THE POWER OF FOOD SCALE (PFS),” KNOWLEDGE & RESEARCH IN APPLIED PSYCHOLOGY, vol. 16, no. 3 (61), pp. 0–0, 2015, [Online]. Available: https://sid.ir/paper/164001/en

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