Table 2 Comparison of the mean scores of communication skills dimensions of nurses in the intervention and control groups

Ability to receive and send massages

Pre- intervention

31.69 (3.83)

30.08 (2.36)

t = 1.802 df = 42

p = 0.072

Post- intervention

32.73 (3.46)

29.17 (3.10)

t = 3.824 df = 48

*p < 0.0001

Paired t-test

Statistics, df, p-value

t = -1.364

df = 25

p = 0.185

t = 1.357

df = 23

p = 0.188

Emotional control

Pre- intervention

29.08 (3.03)

28.96 (3.14)

t = 0.136 df = 48

p = 0.893

Post- intervention

29.73 (4.37)

27.58 (2.84)

(Mann–Whitney U)

u = 231.5

p = 0.115

Wilcoxon signed-rank test, p-value

z = -1.116

p = 0.280

z = -2.162

p = 0.029*

Listening skill

Pre- intervention

20.23 (2.89)

19.79 (2.21)

t = 0.600 df = 48

p = 0.551

Post- intervention

20.84 (2.27)

19.75 (2.13)

t = 1.754 df = 48

p = 0.086

Paired t-test

Statistics, df, p-value

t = -1.048

df = 25

p = 0.305

t = 0.085

df = 23

p = 0.933

Insight into the communication process

Pre- intervention

17.65 (2.53)

16.58 (1.82)

t = 1.707 df = 48

p = 0.094

Post- intervention

19.307 (1.67)

16.33 (1.63)

t = 6.364 df = 48

*p < 0.0001

Paired t-test

Statistics, df, p-value

t = -3.109

df = 25

*p = 0.005

t = 0.796

df = 23

p = 0.434

Communication along with assertiveness

Pre- intervention

14.77 (2.49)

14.96 (1.76)

t = -0.308 df = 48

p = 0.759

Post- intervention

14.46 (3.14)

14.67 (1.68)

t = -0.291 df = 39

p = 0.773

Paired t-test

Statistics, df, p-value

t = 0.527

df = 25

p = 0.603

t = 0.743

df = 23

p = 0.465

Total score of communication skills

Pre- intervention

113.42 (8.62)

110.38 (6.92)

t = 1.371 df = 48

p = 0.177

Post- intervention

117.08 (8.65)

107.50 (7.70)

t = 4.121 df = 48

*p < 0.0001

Paired t-test

Statistics, df, p-value

t = -1.995

df = 25

p = 0.057

t = 1.495

df = 23

p = 0.149