Table 10.

Comparison of d_z and d_av for repeated-measures designs in Zwaan et al. (2018). They show that d_av < d_z when r = .5 (see Table 3). Reporting d_av in addition to d_z for pairwise comparisons allows readers to compare the effect sizes of repeated-measures studies with those of between-groups studies.

Study	Dependent variable	N parts	N conditions	Nobs_ per_cond	dzN=1	dzN = tot	dav
Zwaan et al. (2018)
associative priming	Reaction time to visual stimuli (Session 1)	160	2 × 2 × 2	30	0.17	0.81	0.37
	Reaction time to visual stimuli (Session 2)				0.18	0.94	0.35
false memories	Correct related-unrelated lures (Session 1)	160	2 × 2 × 2	9	0.20	0.97	1.66
	Correct related-unrelated lures (Session 2)				0.31	1.17	1.76
flanker task	RT stimulus congruent incongruent (Session 1)	160	2 × 2 × 2	32	0.15	0.70	0.44
	RT stimulus congruent incongruent (Session 2)				0.13	0.52	0.20
shape simulation	RT to shape matching sentence (Seesion 1)	160	2 × 2 × 2	15	0.08	0.27	0.13
	RT to shape matching sentence (Seesion 2)				0.17	0.50	0.21
spacing effect	Memory of massed v. spaced items (Session 1)	160	2 × 2 × 2	40	0.20	0.87	1.00
	Memory of massed v. spaced items (Session 2)				0.21	0.92	0.87