Data for: Initial validation of the Nine Item Avoidant/Restrictive Food Intake Disorder Screen (NIAS): A measure of three restrictive eating behaviors

English-speaking adults living in the US were recruited from Amazon’s Mechanical Turk (MTurk), a platform where workers are paid to complete online tasks including surveys. We recruited through five separate recruitment advertisements, or Human Intelligence Tasks (HITS), in order to recruit participants who experienced the eating difficulties of interest. The HIT titles were “Research on eating habits,” and “Research on eating habits related to…” irritable bowel syndrome (IBS), fear of vomiting, poor appetite/limited interest in eating, and picky eating. Four attention-check questions were embedded in the survey. A total of 488 people participated in the study. Data from 33 participants (6.8%) who failed one or more attention check were discarded.