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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

  Intra-class correlation coefficient (ICC) 95% Confidence interval p
Lower bound Upper bound
Without MC
 Performance pre − .41 − .70 .02 .971
 Performance post .67 .36 .85 < .001
 Confidence pre .11 − .32 .51 .308
 Confidence post .26 − .18 .61 .120
With MC
 Performance pre − .17 − .56 .28 .772
 Performance post .31 − .13 .66 .079
 Confidence pre .08 − .35 .50 .355
 Confidence post .56 .17 .80 .004
Overall
 Performance pre − .28 − .54 .02 .966
 Performance post .55 .29 .73 < .001
 Confidence pre .09 − .22 .39 .277
 Confidence post .44 .16 .66 .001