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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Assessment. 2017 Aug 11;26(6):1154–1161. doi: 10.1177/1073191117723113

Table 4.

Test–Retest Reliability.

Outcome measure Baseline Follow-up Agreement Difference Mdiff SD 90% CI
List A Trial 1   8.73 (2.86)   9.35 (3.11) r = .63, p < .001 t = 2.21, p = .03   0.62 2.59   −3.64, 3.21
List A Trial 2   12.8 (3.05) 13.29 (3.47) r = .62, p < .001 t = 1.57, p = .12   0.49 2.88   −4.25, 5.23
List A Trial 3 15.38 (2.93) 15.04 (3.13) r = .55, p < .001 t = 1.16, p = .25 −0.35 2.79   −4.94, 4.24
Total Learning List A (Trials 1 to 3) 36.92 (8.05) 37.67 (8.87) r = .69, p < .001 t = 1.05, p = .30   0.76 6.68 −10.23, 7.44
List B   8.02 (3.32)   8.12 (3.48) r = .60, p < .001 t = 0.28, p = .78     .093 3.04   −4.91, 5.09
SDFR List A 12.56 (3.76) 12.37 (3.59) r = .57, p < .001 t = 0.44, p = .66 −0.19 3.95   −6.69, 6.31
LDFR List A 11.58 (4.14) 11.64 (4.69) r = .65, p < 0.001 t = 0.15, p = .89   0.06 3.71   −6.04, 6.16
LDFR List B   3.59 (3.65)   3.48 (3.75) r = .60, p < .001 t = 0.32, p = .075 −0.12 3.33   −5.60, 5.36
Recognition Hits 17.07 (2.73)   17.3 (2.48) r = .64, p < .001 t = 0.98, p = .33   0.23 2.21   −3.41, 3.87
Recognition False Positives   2.77 (3.79)   2.74 (3.85) r = .56, p < .001 t = 0.06, p = .95 −0.02 3.59   −5.93, 5.70
Source—A 16.93 (2.89) 17.07 (2.61) r = .53, p < .001 t = 0.48, p = .63   0.14 2.69   −4.29, 4.57
Source—B 17.72 (2.97) 18.23 (2.4) r = .49, p < .001 t = 1.72, p = .89   0.51 2.76   −4.03, 5.05

Note. Pearson correlations are used to show the degree of agreement across testing sessions and within-participant t tests are used to show degree of difference. The mean difference (Mdiff; follow-up − baseline performance) score and standard deviation (SD) of the mean difference scores are used to generate 90% confidence interval (CI) scores, which can be used to generate RCIs. Test–retest reliability statistics for baseline and follow-up. Forms 1 and 2 were combined, administered an equal number of times within each session, and counterbalanced.