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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: J Exp Psychol Gen. 2018 Sep;147(9):1349–1381. doi: 10.1037/xge0000462

Figure 3.

Figure 3

Effect sizes (Hedge’s gbtw or gwin) by manipulation type. The effect sizes are either averages by publication (when a single study had more than one experiment or condition examining the same manipulation) or individual effect sizes (when a publication reported the result of one study or found a significant moderator of the effect). Larger effect sizes reflect greater preference for larger, delayed outcomes. Horizontal lines reflect the median effect size for that category; symbols for effect sizes are jittered to reduce overlap. Gray symbols indicate that the effect was not statistically significant.