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Table 3 Intra-class correlation coefficients per group and outcome variable

From: What interdependence can tell us about collaborative learning: a statistical and psychological perspective

Ā 

Intra-class correlation coefficient (ICC)

95% Confidence interval

p

Lower bound

Upper bound

Without MC

ā€ƒPerformance pre

āˆ’ā€‰.41

āˆ’ā€‰.70

.02

.971

ā€ƒPerformance post

.67

.36

.85

<ā€‰.001

ā€ƒConfidence pre

.11

āˆ’ā€‰.32

.51

.308

ā€ƒConfidence post

.26

āˆ’ā€‰.18

.61

.120

With MC

ā€ƒPerformance pre

āˆ’ā€‰.17

āˆ’ā€‰.56

.28

.772

ā€ƒPerformance post

.31

āˆ’ā€‰.13

.66

.079

ā€ƒConfidence pre

.08

āˆ’ā€‰.35

.50

.355

ā€ƒConfidence post

.56

.17

.80

.004

Overall

ā€ƒPerformance pre

āˆ’ā€‰.28

āˆ’ā€‰.54

.02

.966

ā€ƒPerformance post

.55

.29

.73

<ā€‰.001

ā€ƒConfidence pre

.09

āˆ’ā€‰.22

.39

.277

ā€ƒConfidence post

.44

.16

.66

.001