Data Coding and Reliability

A coding book was created, which included information about the study variables and the special code for each level of categorical variables (e.g., the EI test; see Table 2)1. The first and the second authors met twice to discuss the coding and clarify any issues before starting the independent coding in the coding sheet. In addition to coding the study moderators, each coder1 Age was treated as a continuous variable independently retrieved the effect size (i.e., Pearson correlation) and the sample size associated with it. A column for notes was included for the coders to make any comments. The two-way interclass correlation coefficient was high (r = .93; McGraw & Wong, 1996). All cases with disagreement were individually revisited and resolved. Insert Table 2 around here