Native Americans' Responses to Obesity Attributions and Message Sources in an Obesity Prevention Campaign.

This study investigated the effectiveness of Native American (NA) targeted obesity prevention messages. The researchers manipulated obesity attributions (internal vs. external) and message sources (NAs vs. non-NAs) in a 2 × 2 mixed experimental design to examine the way these message attributes influence NAs' emotional, attitudinal, cognitive, and behavioral responses. One-hundred and eighteen Cheyenne and Arapaho (C&A) tribal citizens read two paper-based obesity prevention PSAs and then answered questions that assessed their message responses. The key findings demonstrated that the match between participants' ethnicity and the message source's ethnicity had a significant effect, as it reduced anger and promoted positive message attitudes and favorable source evaluations. Implications, limitations, and suggestions for future research and NA targeted health campaigns are discussed.