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Table 1 Descriptive statistics by pretest (content-match vs. mismatch) and interpolated activity (testing vs. restudy) conditions

From: Interpolated testing and content pretesting as interventions to reduce task-unrelated thoughts during a video lecture

Dependent variable

Experimental conditions

Matched testing (n = 48)

Matched restudy (n = 52)

Mismatched testing (n = 51)

Mismatched restudy (n = 44)

M

SD

Min

Max

M

SD

Min

Max

M

SD

Min

Max

M

SD

Min

Max

Pretest

2.17

1.42

0.00

5.00

2.65

1.10

0.00

5.00

1.94

1.22

0.00

5.00

2.20

1.11

0.00

5.00

TUT Rate

0.38

0.25

0.00

0.87

0.47

0.24

0.00

1.00

0.42

0.25

0.00

1.00

0.48

0.26

0.00

1.00

Lecture-Related

0.15

0.11

0.00

0.47

0.14

0.12

0.00

0.53

0.15

0.14

0.00

0.53

0.17

0.11

0.00

0.40

Comp-Related

0.14

0.14

0.00

0.60

0.12

0.13

0.00

0.47

0.15

0.13

0.00

0.47

0.15

0.14

0.00

0.53

Posttest Part 1

4.29

2.09

0.00

8.00

4.37

2.39

0.00

9.00

4.59

2.29

1.00

10.00

4.57

2.06

1.00

8.00

Posttest Part 2

2.17

1.71

0.00

5.00

2.16

1.63

0.00

5.00

2.25

1.57

0.00

5.00

2.35

1.70

0.00

5.00

Posttest Part 3

2.47

1.68

0.00

5.00

2.75

1.65

0.00

5.00

2.83

1.80

0.00

5.00

3.06

1.84

0.00

5.00

Posttest Total

−0.10

0.78

−1.68

1.25

−0.03

0.89

−1.52

1.70

0.04

0.87

−1.52

1.70

0.11

0.81

−1.37

1.40

Sit. Interest

2.74

0.61

1.50

3.90

2.75

0.64

1.60

4.00

2.63

0.78

1.00

4.30

2.89

0.80

0.90

4.44

  1. Matched = content-matched pretest; Mismatched = content-mismatched pretest; Pretest = number correct pretest items; TUT Rate = proportion of thought reports indicating task-unrelated thoughts; Lecture-Related = proportion lecture-related off-task thoughts; Comp-Related = proportion comprehension-related off-task thoughts. Posttest Parts 1–3 = number correct posttest items per part; Posttest Total = z-score average across all posttest parts; Sit. Interest = situational interest scale score. Ns for Situational Interest outcome: Matched Testing = 44; Matched Restudy = 49; Mismatched Testing = 47; Mismatched Restudy = 41