scholarly journals Application of the Transtheoretical Model to Fruit and Vegetable Consumption among Economically Disadvantaged African-American Adolescents: Preliminary Findings

2006 ◽  
Vol 20 (5) ◽  
pp. 342-348 ◽  
Author(s):  
Jennifer Di Noia ◽  
Steven P. Schinke ◽  
James O. Prochaska ◽  
Isobel R. Contento

Purpose. To examine the application of the transtheoretical model (TTM) to fruit and vegetable consumption among economically disadvantaged African-American adolescents. Methods. Scales for measuring decisional balance, situational self-efficacy, and processes of change for fruit and vegetable consumption were developed and pretested with 57 economically disadvantaged African-American adolescents. The scales and measures for assessing stages of change, demographic variables, and fruit and vegetable consumption were administered to a separate sample of 262 participants. t-tests for independent samples and analysis of variance were used to examine differences in TTM variables and fruit and vegetable consumption across stages of change. Results. Two-factor solutions for decisional balance and processes of change and a three-factor solution for situational self-efficacy provided the best fit to the data. Alpha coefficients of reliability for the scales ranged from .77 (experiential change processes) to .91 (pros). Participants in action-maintenance stages evidenced higher pros, self-efficacy, and fruit and vegetable consumption and significantly lower cons than did participants in precontemplation and contemplation-preparation stages. Also, participants in action-maintenance stages used processes of change more frequently than did those in precontemplation-contemplation-preparation stages. The use of experiential and behavioral processes within these stages did not differ significantly, as posited. Discussion. Observed differences in TTM variables and fruit and vegetable consumption by stage of change in this sample of economically disadvantaged African-American adolescents were consistent with theory and previous applications of the model to fruit and vegetable consumption in adults. With replication studies, the TTM may be appropriate for designing interventions to increase fruit and vegetable consumption among this population.

2016 ◽  
Vol 8 (10) ◽  
pp. 203
Author(s):  
Seyed Mohammad Mahdi Hazavehei ◽  
Sara Shahabadi ◽  
Manoochehr Karami ◽  
Mohammad Reza Saidi ◽  
Saeed Bashiriyan ◽  
...  

<p><strong>Introduction</strong><strong>: </strong>The World Health Organization recommended consuming at least 5 servings of fruits and vegetables (FV) per day in order to reduce the risk of non-communicable diseases (NCDs). The purpose of this study is to determine the influential factors related to intake of FV among adults in Kermanshah city based on Transtheoritical Model.</p><p><strong>Material and Methods:</strong> This is a cross-sectional study which is conducted in Kermanshah city. Participants (n=1230) are selected by multi stage sampling; 30-50 year olds people covered by health centers. In order to collect data, we used a TTM-based questionnaire. The results are analyzed using SPSS-16 and Lisrel 8, with P&lt; 0.05 as statistically significant level.</p><p><strong>Results:</strong> The mean age of the participants is 37.75 and 65% of them are women .The mean score of knowledge is 2.4; that is, 80% of men and 78% of women in this study are in poor knowledge about FV consumption. In case of fruit and vegetable consumption behavior, 50% and 61% of participants are in pre-contemplation/contemplation stage, respectively. The average number of fruit servings is 1.42 and the average number of vegetable servings is 0.99 per day. Also, ANOVA test results showed a significant correlation between constructs of TTM and stages of change so that individuals' progress through stages of change from pre-contemplation to maintenance added on the scores of self-efficiency, processes of change, and decisional balance.</p><p><strong>Conclusion: </strong>This study indicated that, TTM constructs such as self-efficacy, processes of change, and decisional balance are good predictors for FV consumption. </p>


2012 ◽  
Vol 26 (6) ◽  
pp. 381-389 ◽  
Author(s):  
Jennifer Di Noia ◽  
Leanne Mauriello ◽  
Carol Byrd-Bredbenner ◽  
Debbe Thompson

Purpose. To examine the construct validity and 2-month test-retest reliability of a staging measure for assessing readiness to consume five or more daily servings of fruits and vegetables among economically disadvantaged African-American adolescents. Design. Longitudinal survey. Setting. Youth services agencies serving low-income communities in New York, New Jersey, and Pennsylvania. Subjects. African-American adolescents (N = 390) aged 11 to 14 years. Measures. Self-report measures of stage of change and fruit and vegetable consumption. Analysis. Correlation analysis and analysis of covariance were used to examine, cross-sectionally, whether fruit and vegetable consumption differed by stage of change (validity assessment). Correlation analysis and Cohen's kappa (κ) were used to assess the degree of association and level of agreement between stages longitudinally (test-retest reliability assessment). Results. Fruit and vegetable consumption was moderately correlated with stage of change (r ≥ .54, p = .000). Consistent with the transtheoretical model, youths' consumption increased from earlier to later stages (p = .000). Forty-six percent of youths were in the same stage at both measurements. The correlation between stages was .26, and Cohen's κ was .20 (p = .000). Conclusions. Despite preliminary evidence of construct validity, the low test-retest reliability found suggests that further research and testing are needed to improve the stability of the measure.


Appetite ◽  
2010 ◽  
Vol 54 (3) ◽  
pp. 611-614 ◽  
Author(s):  
Jana Richert ◽  
Tabea Reuter ◽  
Amelie U. Wiedemann ◽  
Sonia Lippke ◽  
Jochen Ziegelmann ◽  
...  

2014 ◽  
Vol 116 (4) ◽  
pp. 585-597 ◽  
Author(s):  
Jessica Aschemann-Witzel ◽  
Tino Bech-Larsen ◽  
Alice Grønhøj

Purpose – The aim of this paper is to study the extent of change in parents' fruit and vegetable consumption during a period when their children participate in a school-based healthy eating intervention. Design/methodology/approach – A total of 256 12-year-old Danish schoolchildren took part in a text-message feedback intervention promoting fruit and vegetable consumption. One parent of each child filled out self-administered questionnaires at three points during the 40-week study period. In the questionnaire, stated consumption, perceived influence factors on their consumption and self-efficacy and self-regulation were measured. Findings – Only half of the parents stated that they met the “five a day” target. These parents reported good availability of fruit and vegetables in their household, high consumption among their friends and frequent exercise and they were characterised by high self-efficacy levels. Stated consumption increased during the period of the intervention targeted at their children. Parents that reported an increase had, at the start of the intervention, reported low levels of consumption, lack of encouragement to eat healthy at their workplace and lower autonomous self-regulation. Research limitations/implications – The consumption data is limited to self-report. Practical implications – The results indicate that parents can be influenced indirectly by school-based interventions targeted at their children. Future interventions should include the family with the intent to support positive interaction that might further promote and sustain healthy eating habits. Originality/value – The study considers the possible effects school interventions targeting children may have on the immediate family, an aspect generally overlooked in school-based health initiatives.


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