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Table 3 Comparisons between autistic participants with (AUT-P) and without (AUT-NP) prosopagnosia

From: Face individual identity recognition: a potential endophenotype in autism

  Group N Mean SD SE t (df)/Ty(df) p 95% CI Cohen’s d/Yuen’s effect size
ADOS CSS AUT-NP 43 6.40 2.55 0.39     
AUT-P 24 7.08 2.60 0.53 − 1.05(65) 0.30 − 1.99,0.62 − 0.27
ADI TOT AUT-NP 38 43.16 11.28 1.83     
AUT-P 17 45.77 12.95 3.14 − 0.76 (53) 0.45 − 9.52, 4.31 − 0.22
AQ AUT-NP 51 30.86 9.53 1.33     
AUT-P 27 31.30 8.12 1.56 0.13 (39) 0.89 − 3.54, 4.04 0.07
IQ AUT-NP 49 80.56 26.86 3.84     
AUT-P 25 73.68 31.73 6.35 0.87 (17.94) 0.35 − 8.52, 23.09 0.21
RMET AUT-NP 50 0.65 0.16 0.02     
AUT-P 26 0.60 0.19 0.04 0.95 (22.3) 0.35 − 0.07, 0.17 0.18
PI20 AUT-NP 42 55.00 15.51 2.39     
AUT-P 21 56.57 16.07 3.51 0.40
(23.59)
0.69 − 12.11, 819 0.1
PT AUT-NP 50 13.22 6.07 0.86     
AUT-P 26 12.46 5.57 1.09 0.69
(74)
0.49 − 1.84, 3.79 0.17
EC AUT-NP 50 16.08 5.30 0.75     
AUT-P 26 16.27 6.27 1.23 − 0.004 (74) 1.00 − 2.70, 2.69 − 9.37e−4
TAS AUT-NP 44 50.32 10.60 1.60     
AUT-P 23 59.09 10.99 2.29 1.85
(65)
0.07 − 0.41, 10.57 − 0.44
  1. Cohen’s d effect size is interpreted as 0.2 (small), 0.5 (medium), 0.8 (large); (*) Yuen’s effect size is interpreted as 0.10 (small), 0.30 (medium), and 0.50 (large)
  2. t = Student t, (*) Ty = Yuen’s T, SD standard deviation, SE standard error, df degrees of freedom, CI confidence interval, AUT-P autistic prosopagnosic, AUT-NP autistic non-prosopagnosic, ADOS Autism Diagnostic Observation Schedule, ADI TOT Autism Diagnostic Interview Total score (i.e., Communication + Social Interaction + Restricted Repetitive Behaviour + Developmental Abnormalities), AQ* autism quotient, IQ* Intelligence Quotient, RMET* Reading the Mind in the Eyes Test, PI20 Twenty-item Prosopagnosia Index, PT Perspective Taking, EC Empathic Concern, TAS Toronto Alexithymia Scale