Journal of Pediatric Psychology Advance Access published online on May 8, 2008
Journal of Pediatric Psychology, doi:10.1093/jpepsy/jsn043
Examining Short-term Stability of the Mealtime Interaction Coding System (MICS)
All correspondence concerning this article should be addressed to Monica Mitchell, PhD, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., MLC #3015, Cincinnati, OH 45229-3039, USA. E-mail: monica.mitchell{at}chmcc.org
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Objective This study assessed the stability of ratings on the McMaster Mealtime Interaction Coding System (MICS), an observational measure of family functioning, across three typical evening meals. Methods Participants included families of infants and toddlers with cystic fibrosis (n = 33) and with no chronic illness (n = 33). Three meals were videotaped across a 3-week period (M = 17.4 days) and involved a secondary data analysis from a larger study. Results Across both groups, test–retest reliability (paired correlation coefficients) was generally moderate, but significant, for all scales at each time point comparison. Analyses revealed no significant within-or between-group differences across time periods on healthy versus unhealthy ratings. Conclusions This study highlights the limitations of coding a single mealtime observation or interpreting multiple observations using the MICS. Findings highlight that family, meal, illness, and assessment factors may impact variability in ratings over time.
Key words: cystic fibrosis; family functioning; infants and toddlers; mealtimes; observational methodology.
Received August 6, 2007; revision received April 7, 2008; accepted April 13, 2008