Skip to main content
. 2022 Apr 22;22:293. doi: 10.1186/s12888-022-03913-3

Table 2.

Descriptives and main results Linear Mixed Model analyses (N = 106)

PEERS® ROAD LMM analysis interaction CONDITION X TIME
Baseline M(SD) Post M(SD) Follow-up M(SD) Baseline M(SD) Post M(SD) Follow-up M(SD) p
Adolescent data
n = 53 n = 42 n = 32 n = 46 n = 35 n = 22
CASS Total 30.13 (8.22) 30.21 (8.29) 33.63 (9.15) 28.91 (7.99) 30.46 (7.98) 29.59 (7.31) .18
  0. Starting conversation 1.62 (0.71) 1.86 (0.47) 1.66 (0.60) 1.35 (0.82) 1.74 (0.61) 1.68 (0.65) .18
  1. Total Questions Asked 6.19 (3.54) 7.02 (4.24) 6.50 (3.29) 6.24 (4.14) 6.51 (3.50) 5.64 (3.26) .70
  1a. Initiating Questions 2.92 (1.89) 3.50 (1.64) 3.03 (1.68) 2.78 (1.95) 3.66 (1.94) 3.09 (1.88) .87
  1b. Follow-up Questions 3.26 (2.68) 3.52 (3.29) 3.47 (2.76) 3.46 (3.35) 2.89 (2.70) 2.45 (2.26) .45
  2. Topic Changes 3.06 (2.22) 2.93 (1.80) 3.47 (1.90) 3.24 (2.38) 3.40 (2.55) 3.27 (2.12) .56
  3. Vocal Expressiveness 4.91 (1.56) 5.12 (1.49) 5.22 (1.66) 4.67 (1.61) 4.80 (1.61) 4.32 (1.62) .21
  4. Gestures 3.47 (1.86) 3.14 (2.06) 4.09 (1.91) 3.24 (1.88) 3.17 (1.92) 3.23 (1.95) .26
  5. Positive Affect 4.32 (1.54) 4.57 (1.63) 5.16 (1.76) 4.07 (1.53) 4.51 (1.54) 4.45 (1.41) .42
  6. Kinetic Arousal 4.02 (1.66) 3.95 (1.55) 4.09 (1.75) 3.98 (1.15) 3.97 (1.40) 3.95 (1.17) .62
  7. Social Anxiety 4.53 (1.68) 4.33 (1.79) 4.81 (1.62) 4.09 (1.74) 4.77 (1.54) 4.36 (1.36) .48
  8. Overall Involvement 4.62 (1.30) 4.71 (1.45) 5.22 (1.26) 4.70 (1.31) 4.94 (1.24) 4.82 (1.05) .29
  9. Overall Quality of Rapport 4.26 (1.48) 4.38 (1.43) 5.03 (1.49) 4.17 (1.39) 4.29 (1.47) 4.45 (1.44) .27
  10. Initiating End of Conversation 0.60 (0.49) 0.95 (0.22) 0.84 (0.37) 0.67 (0.60) 0.94 (0.24) 0.95 (0.21) .75
  11. Giving reason to end conversation 0.26 (0.45) 0.45 (0.50) 0.41 (0.50) 0.24 (0.43) 0.37 (0.49) 0.32 (0.48) .71
n = 53 n = 42 n = 33 n = 47 n = 36 n = 21
CRS-A 27.45 (4.46) 27.67 (5.38) 28.91 (3.25) 25.60 (4.77) 27.61 (4.80) 28.52 (3.63) .12
  Item 1 (self-confidence before) 4.66 (1.41) 4.88 (1.61) 5.09 (1.56) 4.52 (1.87) 4.62 (1.79) 4.84 (1.95) .07
  Item 10 (after) 4.85 (1.42) 5.18 (1.37) 5.23 (1.31) 4.43 (1.92) 4.82 (1.74) 5.11 (1.79) .42
  Perspective taking items 10.16 (1.76) 10.64 (2.25 11.26 (1.44) 9.96 (1.91) 10.42 (1.84) 10.53 (2.29) .50
n = 52 n = 45 n = 32 n = 52 n = 39 n = 27
SSIS-A Total 82.33 (21.91) 90.82 (20.26) 94.53 (23.02) 84.96 (16.33) 88.85 (18.12) 88.11 (21.43) .02*
  Communication 12.00 (3.30) 13.77 (2.94) 13.53 (3.59) 12.67 (2.78) 12.97 (2.64) 13.54 (3.14) .06
  Cooperation 14.59 (3.45) 15.42 (3.54) 16.43 (3.45) 15.14 (3.10) 15.08 (3.35) 14.60 (3.67) .01#
  Assertion 12.06 (4.03) 12.16 (3.73) 12.69 (4.34) 11.10 (4.17) 12.11 (3.92) 12.41 (4.45) .38
  Responsibility 13.42 (3.38) 14.66 (3.18) 15.30 (3.49) 13.46 (2.79) 13.56 (3.30) 14.50 (3.28) .33
  Empathy 12.29 (3.39) 12.95 (3.41) 13.48 (3.29) 12.84 (3.10) 13.36 (2.59) 12.35 (3.19) .12
  Engagement 9.46 (3.92) 11.09 (4.59) 11.90 (4.91) 9.25 (4.62) 10.68 (4.59) 10.42 (5.14) .02#
  Self-Control 10.65 (4.16) 12.26 (2.80) 12.65 (3.21) 10.79 (3.66) 11.51 (4.26) 11.80 (4.25) .53
Parent data
n = 54 n = 41 n = 35 n = 51 n = 38 n = 28
SSIS-P Total 70.26 (18.49) 80.90 (17.47) 84.83 (21.79) 73.20 (16.35) 83.39 (19.91) 82.93 (18.02) .11
  Communication 9.79 (3.32) 11.56 (3.17) 12.29 (3.41) 10.40 (2.60) 11.42 (2.94) 11.48 (2.58)  < .01**
  Cooperation 10.08 (3.50) 11.63 (3.17) 11.91 (3.97) 10.92 (3.03) 12.38 (3.24) 12.50 (3.09) .28
  Assertion 10.57 (3.38) 11.49 (3.27) 11.24 (3.55) 10.63 (3.19) 11.55 (3.21) 11.54 (3.10) .97
  Responsibility 9.98 (3.02) 11.61 (3.27) 11.97 (3.69) 10.28 (3.23) 11.92 (3.74) 12.64 (3.07) .89
  Empathy 9.94 (2.95) 10.85 (2.56) 11.91 (3.27) 10.25 (3.21) 11.55 (2.78) 11.25 (3.25) .11
  Engagement 8.04 (3.96) 9.88 (3.78) 10.37 (4.36) 8.39 (3.51) 10.61 (4.20) 10.43 (4.11) .40
  Self-Control 7.31 (3.40) 8.46 (2.99) 8.77 (3.64) 8.08 (3.11) 8.79 (3.57) 8.78 (3.51) .41
n = 54 n = 51 n = 43 n = 39 n = 35 n = 28
SRS-2-P Total 88.90 (27.09) 69.09 (27.15) 62.26 (25.06) 86.20 (22.02) 72.76 (26.18) 69.95 (23.72) .02*
  Social Awareness 11.44 (3.13) 9.95 (3.66) 8.91 (3.39) 11.18 (3.13) 9.32 (3.68) 9.07 (3.30) .58
  Social Cognition 16.67 (6.59) 13.30 (6.49) 12.29 (6.13) 15.22 (5.34) 13.53 (5.08) 12.64 (5.65) .03#
  Social Communication 29.17 (10.11) 22.02 (9.99) 19.91 (9.98) 27.75 (8.94) 22.89 (10.62) 22.89 (9.77) .04#
  Social Motivation 16.56 (6.27) 11.91 (6.51) 10.63 (5.51) 16.75 (4.46) 13.08 (5.51) 12.36 (4.52) .15
  Autistic Mannerisms 14.96 (6.35) 11.65 (5.62) 10.37 (5.05) 14.78 (5.53) 12.18 (5.39) 12.14 (6.13) .05#
Teacher data
n = 39 n = 24 n = 22 n = 34 n = 23 n = 23
SSIS-T Total 69.90 (17.98) 66.38 (17.88) 73.36 (18.85) 71.59 (15.76) 78.26 (17.99) 75.39 (15.74) .31
  Communication 11.85 (3.89) 11.83 (3.62) 12.36 (4.26) 12.15 (3.63) 13.39 (3.69) 12.17 (3.20) .45
  Cooperation 11.79 (2.82) 11.17 (2.57) 12.41 (2.75) 12.91 (3.33) 12.78 (3.67) 12.30 (3.11) .07
  Assertion 9.13 (3.70) 8.63 (3.92) 9.05 (4.25) 8.09 (3.25) 9.09 (2.54) 9.22 (3.50) .49
  Responsibility 11.67 (2.97) 10.38 (2.18) 11.77 (2.33) 12.21 (3.68) 12.96 (4.17) 12.22 (3.20) .27
  Empathy 7.90 (3.70) 6.92 (3.67) 8.55 (3.42) 7.18 (3.66) 8.65 (3.70) 8.57 (2.35) .71
  Engagement 7.74 (3.70) 8.08 (3.43) 8.77 (4.13) 8.15 (3.59) 9.78 (3.90) 8.48 (4.40) .16
  Self-Control 9.82 (3.87) 9.39 (3.16) 10.45 (3.08) 10.91 (4.20) 11.61 (3.37) 12.43 (3.44) .33
n = 37 n = 22 n = 18 n = 31 n = 20 n = 22
SRS-2-T Total 77.92 (24.51) 72.64 (24.01) 65.11 (30.89) 73.94 (26.71) 63.30 (21.27) 65.09 (20.66) .58
  Social Awareness 9.68 (3.70) 9.09 (2.30) 8.67 (2.97) 9.35 (3.47) 8.30 (3.31) 8.59 (3.33) .45
  Social Cognition 15.05 (4.84) 15.50 (4.98) 14.67 (5.35) 15.13 (5.38) 12.50 (3.75) 13.09 (3.21) .66
  Social Communication 26.95 (10.01) 25.05 (9.90) 21.39 (12.37) 25.71 (10.71) 22.25 (9.32) 22.73 (7.74) .27
  Social Motivation 14.76 (4.90) 13.23 (5.61) 12.39 (6.44) 13.74 (5.42) 12.00 (4.44) 12.00 (5.22) .81
  Autistic Mannerisms 11.49 (5.44) 9.77 (5.13) 8.00 (6.12) 10.00 (5.81) 8.25 (4.94) 8.68 (5.04) .54

*p < .05, no FDR correction applied, # not significant after FDR correction, ** Remained significant after FDR correction

CRS as covariate in analyses on all measures

Contextual Assessment of Social Skills (CASS); Social Skills Improvement System (SSIS); Social Responsiveness Scale-2 (SRS-2); Conversation Rating Scale (CRS)