Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7309442 | Appetite | 2014 | 9 Pages |
Abstract
The purpose of this study was to assess the validity of using participant worn micro-camcorders (PWMC) to collect data on parent-child food and beverage purchasing interactions in the grocery store. Parent-child dyads (nâ=â32) were met at their usual grocery store and shopping time. Parents were mostly Caucasian (nâ=â27, 84.4%), mothers (nâ=â30, 93.8%). Children were 2-6 years old with 15 girls and 17 boys. A micro-camcorder was affixed to a baseball style hat worn by the child. The dyad proceeded to shop while being shadowed by an in-person observer. Video/audio data were coded for behavioral and environmental variables. The PWMC method was compared to in-person observation to assess sensitivity and relative validity for measuring parent-child interactions, and compared to receipt data to assess criterion validity for evaluating purchasing decisions. Inter-rater reliability for coding video/audio data collected using the PWMC method was also assessed. The PWMC method proved to be more sensitive than in-person observation revealing on average 1.4 (pâ<â0.01) more parent-child food and beverage purchasing interactions per shopping trip. Inter-rater reliability for coding PWMC data showed moderate to almost perfect agreement (Cohen's kappaâ=â0.461-0.937). The PWMC method was significantly correlated with in-person observation for measuring occurrences of parent-child food purchasing interactions (rhoâ=â0.911, pâ<â0.01) and characteristics of those interactions (rhoâ=â0.345-0.850, pâ<â0.01). Additionally, there was substantial agreement between the PWMC method and receipt data for measuring purchasing decisions (Cohen's kappaâ=â0.787). The PWMC method proved to be well suited to assess parent-child food and beverage purchasing interactions in the grocery store.
Keywords
Related Topics
Life Sciences
Agricultural and Biological Sciences
Food Science
Authors
Eric E. Calloway, Cindy Roberts-Gray, Nalini Ranjit, Sara J. Sweitzer, Katie A. McInnis, Maria J. Romo-Palafox, Margaret E. Briley,