Table 2 Means (M), standard deviations (SD), t-values, degrees of freedom (df) and effect sizes (d) of perceptual measures of body image for Anorexia Nervosa (AN) patients and Healthy Controls (HC)
|  | HC (n = 28) | AN (n = 30) |  | |||||
|---|---|---|---|---|---|---|---|---|
Variable | M | SD | M | SD | t | df | p | d |
Body size estimation (Light Beam Apparatus) | ||||||||
With direction of inaccuracy | ||||||||
% estimation accuracy - waist | 115.84 | 18.35 | 135.68 | 33.78 | 2.81 | 45.36 | .007 | 0.74 |
% estimation accuracy - hips | 120.45 | 16.06 | 137.50 | 44.19 | 1.98 | 36.10 | .055 | 0.51 |
% estimation accuracy - thigh | 104.36 | 19.10 | 136.61 | 53.66 | 3.09 | 36.68 | .004 | 0.8 |
% global estimation accuracy | 113.55 | 14.85 | 136.60 | 41.65 | 2.84 | 36.71 | .007 | 0.74 |
Without direction of accuracy | ||||||||
% estimation accuracy - waist | 20.36 | 12.91 | 40.23 | 28.00 | 3.51 | 41.41 | .001 | 0.92 |
% estimation accuracy - hips | 21.56 | 14.48 | 43.22 | 38.40 | 2.88 | 37.58 | .007 | 0.75 |
% estimation accuracy - thigh | 15.65 | 11.43 | 44.60 | 46.99 | 3.27 | 32.66 | .003 | 0.85 |
% global estimation accuracy | 16.88 | 10.74 | 42.13 | 35.83 | 3.69 | 34.50 | .001 | 0.96 |
Excluding Left-handers | HC (n = 27) | AN (n = 26) |  | |||||
Angle paradigm task | ||||||||
All parallel tasks accuracy | 9.19 | 5.00 | 9.07 | 4.57 | 0.09 | 51.00 | .463 | 0.03 |
Exploration time | 11.69 | 4.40 | 24.60 | 13.41 | 4.67 | 30.15 | .0001 | 1.33 |
All mirror tasks accuracy | 6.60 | 2.53 | 6.25 | 2.76 | 0.47 | 51.00 | .321 | 0.13 |
Exploration time | 11.15 | 4.30 | 23.46 | 13.23 | 4.52 | 30.06 | .0001 | 1.29 |
All tasks accuracy | 7.89 | 3.15 | 7.66 | 3.09 | 0.27 | 51.00 | .394 | 0.08 |
Exploration time | 11.42 | 4.12 | 24.03 | 12.66 | 4.84 | 30.05 | <.0001 | 1.38 |
Right hand tasks | ||||||||
Right parallel tasks accuracy | 9.34 | 5.30 | 10.01 | 4.53 | 0.49 | 51.00 | .312 | 0.14 |
Exploration time | 12.16 | 4.44 | 24.31 | 12.39 | 4.72 | 31.11 | <.0001 | 1.34 |
Right mirror tasks accuracy | 7.44 | 3.95 | 6.96 | 4.74 | 0.40 | 51.00 | .347 | 0.11 |
Exploration time | 11.15 | 4.27 | 23.86 | 12.52 | 4.91 | 30.54 | <.0001 | 1.4 |
Right hand tasks accuracy | 8.39 | 3.59 | 8.49 | 3.94 | 0.09 | 51.00 | .463 | 0.03 |
Exploration time | 11.65 | 3.97 | 24.08 | 11.60 | 5.18 | 30.58 | <.0001 | 1.47 |
Left hand tasks | ||||||||
Left parallel tasks | 9.03 | 6.27 | 8.12 | 5.96 | 0.54 | 51.00 | .295 | 0.15 |
Exploration time | 11.22 | 4.66 | 24.88 | 14.93 | 4.46 | 29.67 | .0001 | 1.27 |
Left mirror tasks accuracy | 5.76 | 2.73 | 5.55 | 2.34 | 0.30 | 51.00 | .384 | 0.08 |
Exploration time | 11.16 | 4.76 | 23.05 | 14.83 | 3.90 | 29.91 | .0005 | 1.11 |
Left hand tasks accuracy | 7.40 | 3.59 | 6.84 | 3.19 | 0.60 | 51.00 | .276 | 0.17 |
Exploration time | 11.19 | 4.45 | 23.97 | 14.22 | 4.38 | 29.68 | .0001 | 1.25 |