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Individual, social, and environmenta...

Granner, Michelle Lee.

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Individual, social, and environmental factors associated with fruit and vegetable intake among adolescents: A study of social cognitive and behavioral choice theories.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Individual, social, and environmental factors associated with fruit and vegetable intake among adolescents: A study of social cognitive and behavioral choice theories./
Author:	Granner, Michelle Lee.
Description:	219 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-07, Section: B, page: 3222.
Contained By:	Dissertation Abstracts International64-07B.
Subject:	Health Sciences, Public Health. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3098668

Individual, social, and environmental factors associated with fruit and vegetable intake among adolescents: A study of social cognitive and behavioral choice theories.
Granner, Michelle Lee.

Individual, social, and environmental factors associated with fruit and vegetable intake among adolescents: A study of social cognitive and behavioral choice theories. - 219 p.

Source: Dissertation Abstracts International, Volume: 64-07, Section: B, page: 3222.

Thesis (Ph.D.)--University of South Carolina, 2003.

The purpose of this study was to examine the relative associations of several individual, social, and family environmental variables to fruit and vegetable consumption among a cross-sectional sample of young adolescents aged 11–15 years. The study also assessed the validity and reliability of several previously developed measurement scales for an adolescent population, socio-demographic differences in influencing factors, and correlates of self-efficacy and snack choice. A paper-and-pencil, self-report questionnaire was administered to students in two middle schools in a Southeastern state. The sample contained 736 African-American and white adolescents. Response rate was 81.1% excluding absences. Principal factor analyses revealed subscales (factor loadings .41–.90) with adequate to good internal consistencies (.65–.87). As indication of construct validity, fruit and vegetable intake were significantly correlated with self-efficacy, parent and peer modeling, and family and peer normative beliefs. Fruit intake was also correlated with social and health outcome expectations. Self-efficacy (OR = 1.11 to 1.35), snack choice (OR = 1.16 to 1.38), parental modeling (OR = 1.10 to 1.26), family normative beliefs (OR = 1.08 to 1.18), and fruit and vegetable availability in the home (OR = 1.25 to 1.69) were significant bivariate associates fruit and vegetable intake. Multivariable models indicated, however, that the effects of these associations varied between categories of fruit and vegetable intake. Fruit and vegetable availability was the most consistent associate of intake; while fruit preference, family dinner frequency, and fruit and vegetable availability were the strongest associates of intake. African-Americans reported greater levels of social influences than whites, while whites reported a greater level of family environmental influences. Adolescents 14–15 years of age reported lower levels of self-efficacy, peer modeling, frequency of family dinners, and preferences for fruit and vegetables compared to younger adolescents. Regression models for self-efficacy and snack choice explained 41% and 34% of the variance, respectively. Preference for vegetables and parental modeling were the strongest correlates of self-efficacy. Self-efficacy was the strongest correlate of snack choice. The results highlight the influence of the family environment on fruit and vegetable intake by young adolescents and suggest differential effects of influencing factors by levels of behavior and demographic subgroups.Subjects--Topical Terms:

1017659
Health Sciences, Public Health.

Individual, social, and environmental factors associated with fruit and vegetable intake among adolescents: A study of social cognitive and behavioral choice theories.
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245 1 0 $a Individual, social, and environmental factors associated with fruit and vegetable intake among adolescents: A study of social cognitive and behavioral choice theories.
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500 $a Major Professor: Roger G. Sargent.
502 $a Thesis (Ph.D.)--University of South Carolina, 2003.
520 $a The purpose of this study was to examine the relative associations of several individual, social, and family environmental variables to fruit and vegetable consumption among a cross-sectional sample of young adolescents aged 11–15 years. The study also assessed the validity and reliability of several previously developed measurement scales for an adolescent population, socio-demographic differences in influencing factors, and correlates of self-efficacy and snack choice. A paper-and-pencil, self-report questionnaire was administered to students in two middle schools in a Southeastern state. The sample contained 736 African-American and white adolescents. Response rate was 81.1% excluding absences. Principal factor analyses revealed subscales (factor loadings .41–.90) with adequate to good internal consistencies (.65–.87). As indication of construct validity, fruit and vegetable intake were significantly correlated with self-efficacy, parent and peer modeling, and family and peer normative beliefs. Fruit intake was also correlated with social and health outcome expectations. Self-efficacy (OR = 1.11 to 1.35), snack choice (OR = 1.16 to 1.38), parental modeling (OR = 1.10 to 1.26), family normative beliefs (OR = 1.08 to 1.18), and fruit and vegetable availability in the home (OR = 1.25 to 1.69) were significant bivariate associates fruit and vegetable intake. Multivariable models indicated, however, that the effects of these associations varied between categories of fruit and vegetable intake. Fruit and vegetable availability was the most consistent associate of intake; while fruit preference, family dinner frequency, and fruit and vegetable availability were the strongest associates of intake. African-Americans reported greater levels of social influences than whites, while whites reported a greater level of family environmental influences. Adolescents 14–15 years of age reported lower levels of self-efficacy, peer modeling, frequency of family dinners, and preferences for fruit and vegetables compared to younger adolescents. Regression models for self-efficacy and snack choice explained 41% and 34% of the variance, respectively. Preference for vegetables and parental modeling were the strongest correlates of self-efficacy. Self-efficacy was the strongest correlate of snack choice. The results highlight the influence of the family environment on fruit and vegetable intake by young adolescents and suggest differential effects of influencing factors by levels of behavior and demographic subgroups.
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