Table 1.
Descriptive Statistics across Assessments
| Variable | Time 1 |
Time 2 |
Time 3 |
||||||
|---|---|---|---|---|---|---|---|---|---|
| n | Mean (SD) | Range | n | Mean (SD) | Range | n | Mean (SD) | Range | |
| Observed inhibited temperament | 124 | −0.02 (0.67) | −1.31-1.90 | 137 | 0.01 (0.67) | −1.23-1.58 | 100 | 0.04 (0.69) | −1.02-1.94 |
| S: Not playing, in prox to M (dur) | 55.67 (60.35) | 0-235.48 | 78.60 (62.40) | 0-224.64 | 90.28 (57.11) | 0-212.48 | |||
| S: Non-distressed vocs (count) | 7.91 (6.97) | 0-34 | 9.66 (8.50) | 0-50 | 11.03 (9.40) | 0-42 | |||
| S: Playing in prox of S (dur) | 33.05 (32.17) | 0-120.48 | 30.30 (29.57) | 0-152.12 | 31.15 (30.68) | 0-125.98 | |||
| S: Latency to approach S | 111.03 (100.44) | 2.52-291 | 120.38 (71.53) | 2.76-239 | 122.24 (69.44) | 2.13-244 | |||
| S: Freezing (dur) | 10.29 (20.42) | 0-133 | 19.87 (24.44) | 0-111.94 | 30.24 (33.48) | 0-160.69 | |||
| S: Vigilant stare (dur) | 51.31 (43.97) | 0-155.60 | 45.19 (37.48) | 0-169.84 | 53.36 (42.13) | 0-200.72 | |||
| S: Latency to touch simulus | 179.80 (96.25) | 49.65-291 | 137.95 (67.57) | 18.77-239 | 138.98 (67.49) | 28.14-244 | |||
| R: Not playing, in prox to M (dur) | 31.86 (38.62) | 0-153.04 | 37.43 (40.71) | 0-147.97 | 31.44 (38.79) | 0-123.85 | |||
| R: Latency to touch stimulus | 78.05 (71.48) | 0-160 | 100.35 (75.50) | 0-168 | 120.42 (84.89) | 0-195 | |||
| R: Playing in prox of S (dur) | 14.36 (24.68) | 0-136.84 | 23.46 (34.56) | 0-131.08 | 32.03 (39.15) | 0-125.61 | |||
| R: Latency to approach R | 71.62 (72.65) | 0-160 | 67.00 (74.55) | 0-168 | 73.41 (85.57) | 0-195 | |||
| R: Freezing (dur) | 23.34 (26.13) | 0-109.64 | 19.18 (23.76) | 0-96.86 | 21.92 (27.19) | 0-117.69 | |||
| R: Vigilant stare (dur) | 47.27 (30.09) | 0-121.39 | 35.79 (32.29) | 0-112.64 | 33.96 (33.57) | 0-123.85 | |||
| R: Touching R (dur) | 15.86 (25.21) | 0-136.76 | 13.35 (23.02) | 0-131.53 | 9.36 (17.84) | 0-81.88 | |||
| T: Not playing, in prox to M (dur) | 18.04 (20.30) | 0-75.06 | 9.12 (14.41) | 0-56.76 | 7.70 (13.96) | 0-54.87 | |||
| T: Vigilant stare (dur) | 6.81 (10.27) | 0-51.07 | 4.61 (8.89) | 0-45.60 | 2.09 (6.20) | 0-36.42 | |||
| Mother-reported toddler anxiety | 113 | 0.62 (0.31) | 0.11-2.00 | 135 | 0.68 (0.32) | 0.05-1.51 | 93 | 0.67 (0.30) | 0.06-1.35 |
| Maternal anxiety | 125 | 0.05 (0.87) | −1.22-3.44 | 143 | 0.04 (0.85) | −1.20-4.06 | 104 | 0.03 (0.83) | −1.48-2.54 |
| DASS anxiety | 118 | 2.97 (4.88) | 0-26 | 132 | 3.39 (6.11) | 0-34 | 96 | 2.74 (4.29) | 0-24 |
| PSWQ total score | 122 | 45.87 (13.36) | 21-77 | 140 | 44.60 (13.65) | 20-77 | 102 | 42.26 (13.48) | 18-75 |
| SIAS total score | 122 | 22.41 (12.94) | 1-51 | 140 | 21.64 (14.03) | 0-54 | 103 | 22.02 (15.06) | 0-63 |
| Solicited comforting behavior | -- | -- | -- | 138 | 9.65 (15.14) | 0-93 | 103 | 10.89 (16.44) | 0-78 |
Note. S = Stranger. R = Robot. T = Tunnel.