Using a Systematic Conceptual Model for a Process Evaluation of a Middle School Obesity Risk-Reduction Nutrition Curriculum Intervention: Choice, Control & Change

作者：Lee Heewon^*; Contento Isobel R; Koch Pamela

来源：Journal of Nutrition Education and Behavior, 2013, 45(2): 126-136.

DOI：10.1016/j.jneb.2012.07.002

• process evaluation
• obesity risk-reduction
• middle schools
• nutrition education curriculum

Objective: To use and review a conceptual model of process evaluation and to examine the implementation of a nutrition education curriculum, Choice, Control & Change, designed to promote dietary and physical activity behaviors that reduce obesity risk.
Design: A process evaluation study based on a systematic conceptual model.
Setting: Five middle schools in New York City.
Participants: Five hundred sixty-two students in 20 classes and their science teachers (n = 8).
Main Outcome Measures: Based on the model, teacher professional development, teacher implementation, and student reception were evaluated. Also measured were teacher characteristics, teachers' curriculum evaluation, and satisfaction with teaching the curriculum.
Analysis: Descriptive statistics and Spearman rho correlation for quantitative analysis and content analysis for qualitative data were used.
Results: Mean score of the teacher professional development evaluation was 4.75 on a 5-point scale. Average teacher implementation rate was 73%, and the student reception rate was 69%. Ongoing teacher support was highly valued by teachers. Teacher satisfaction with teaching the curriculum was highly correlated with student satisfaction (P < .05). Teacher perception of amount of student work was negatively correlated with implementation and with student satisfaction (P < .05).
Conclusions and Implications: Use of a systematic conceptual model and comprehensive process measures improves understanding of the implementation process and helps educators to better implement interventions as designed.

• 出版日期2013-4
• 单位南宁师范大学