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.

本研究招募了居住在美国的英语使用者，招募渠道为亚马逊机械 Turk（Amazon Mechanical Turk，MTurk）——该平台的工作者可通过完成包括调查在内的线上任务获取报酬。为招募存在目标进食困难经历的参与者，我们通过五组独立的招募广告，即人类智能任务（Human Intelligence Tasks，HITS）开展招募。HIT的标题为“饮食习惯研究”，以及“与……相关的饮食习惯研究”，涉及的主题包括肠易激综合征（irritable bowel syndrome，IBS）、呕吐恐惧、食欲低下/进食兴趣减退，以及挑食。本次调查嵌入了四道注意力检测题。最终共有488人参与本研究，我们剔除了33名（占比6.8%）在一道或多道注意力检测题中未通过的参与者的有效数据。