The investigators propose an efficacy study (i.e., do salad bars work under controlled conditions in naturalistic settings) to test whether introducing salad bars in elementary, middle, and high schools that have never had salad bars affects students' FV consumption and waste during lunch. A cluster randomized controlled trial will test new salad bars against controls for 6 wks, with/without an additional 4-wk marketing phase .
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
7,491
New salad bar placed in school
Marketing conditions (printed material, displays, verbal announcements, prompts and taste tests)
Arizona State University
Phoenix, Arizona, United States
Change in grams of fruit and vegetables consumed
The amount (grams) of fresh and canned fruits and vegetables consumed at lunch
Time frame: Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization)
Change in grams of fruit and vegetables selected
The amount (grams) of fresh and canned fruits and vegetables selected at lunch
Time frame: Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization)
Change in percent of fruit and vegetables wasted
The percent of fresh and canned fruits and vegetables wasted at lunch
Time frame: Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization)
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