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. Author manuscript; available in PMC: 2020 Jan 1.
Published in final edited form as: Comput Educ. 2018 Sep 27;128:284–311. doi: 10.1016/j.compedu.2018.09.016

Table 3.

Descriptive Statistics for the Word Knowledge Task Raw Score by Group and Testing Time

Immediate Treatment Delayed Treatment
Time of testing
(n students)		 Book Club No Book Club Book Club No Book Club
Pre-Test (603) 10.46 (4.5) 10.01 (4.44) 10.31 (4.58) 10.31 (4.30)
Mid-Test (603) 13.80 (6.06) 12.59 (5.63) 11.73 (4.82) 11.81 (4.48)
Post-Test (601) 13.66 (6.34) 12.93 (5.41) 14.54 (6.04) 13.76 (5.65)

Note. Standard deviations in parentheses. Gains from pre- to mid-test were significant for both groups with gains greater from the WKe-Book students based on repeated measures ANOVA [F(1,585) = 3569.82, p < 0.001].