Neurocognitive inefficiencies and eating disorder symptoms in college women
Data are for a study on neurocognitive factors and eating disorder symptoms in college women study. It was hypothesized that women with overlapping inefficiencies in set-shifting and global processing would have higher ED symptoms than those with standalone neurocognitive inefficiencies or no inefficiency. Data include ED symptom dimension scores (EDE-Q) as well as reaction time and error scores for the WCST (set-shifting) and Navon task (global processing). BIS scores were calculated to represent efficiency on the WCST and Navon task. This project contains the data file for all participants used in analyses as well as a codebook for the data. Three responses were missing completely at random. Missing values were imputed using the Expectation Maximization algorithm. Data were screened for univariate outliers using z scores (greater than +/- 3.29). Five univariate outliers were winsorized by replacing with the next within-bound value. Two multivariate outlier was identified using Mahalanobis distance and was removed from the sample, resulting in a final sample of 142 participants. Median splits of BIS efficiency scores were utilized to classify individuals into one of four neurocognitive profile groups: 1) overlapping (both), 2) central coherence (CC), 3) set-shifting (SS), and 4) no (neither) inefficiencies. Spearkman rank correlation analyses were run between eating disorder symptoms and BIS efficiency scores. Kruskal-Wallis tests were run to compare mean rank WCST and Navon task reaction time and error scores across neurocognitive profile groups. Differences in mean rank eating disorder symptom scores by neurocognitve profile were also tested using Kruskal-Wallis tests. Pairwise comparisons were performed using Dunn’s procedure with Bonferroni correction for multiple comparisons. Results showed that women with overlapping inefficiencies had higher eating disorder symptoms than those with no inefficiency.