“…This scheme acted as the data collection instrument to help us understand how MRs were used and reported in L2 research articles. To the best of our knowledge, no previous coding scheme had been developed for examining practices related to MR. Consequently, we created the coding scheme for this study based on (a) the different checklists and recommendations in statistical guides (Field, ; Hair et al., ; Keith, ; Kelley & Maxwell, ; Larson–Hall, ; Meyers, Gamst, & Guarino, ; Pituch & Stevens, ; Plonsky, ; Plonsky & Oswald, ; Tabachnick & Fidell, ), (b) the recommendations in the publication manual of the American Psychological Association (APA, ), (c) suggestions, recommendations, and findings found in different recently published L2 research reviews (Larson–Hall & Plonsky, ; Plonsky, , , ), and (d) previous methodologically oriented syntheses (e.g., Lindstromberg, ; Marsden et al., ; Plonsky & Gonulal, ). As is typical in systematic reviews, the coding scheme underwent several rounds of development and piloting.…”