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Table 2 The comparison of post-intervention scores between four groups

From: The effect of virtual reality technology on preoperative anxiety in children: a Solomon four-group randomized clinical trial

Domains Groups Mann-Whitney Kruskal-Wallis
Activity after E1 E2 p = 0.436 p = 0.005
C1 p = 0.105
C2 p = 0.003
E2 C1 p = 0.393
C2 p = 0.023
Vocalization after E1 E2 p = 0.529 p = 0.003
C1 p = 0.011
C2 p = 0.004
E2 C1 p = 0.105
C2 p = 0.015
Emotional expressivity after E1 E2 p = 0.436 p = 0.001
C1 p = 0.001
C2 p = 0.001
E2 C1 p = 0.035
C2 p = 0.023
State of apparent arousal after E1 E2 p = 0.739 p = 0.000
C1 p = 0.143
C2 p = 0.002
E2 C1 p = 0.218
C2 p = 0.003
  1. E1 experiment 1 (intervention with pretest), E2 experiment 2 (intervention without pretest), C1 control 1 (control with pretest), C2 control 2 (control without pretest)