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Table 5 Zero-order and partial correlations between GAFS-8 latent trait scores and other clinical measures in SPARK sample

From: Improving the measurement of alexithymia in autistic adults: a psychometric investigation of the 20-item Toronto Alexithymia Scale and generation of a general alexithymia factor score using item response theory

Covariate

r [95% CrI]

BFROPE

\(P(\mathrm{ROPE}|\mathrm{Data}\))

rp [95% CrI]

BFROPE

\(P(\mathrm{ROPE}|\mathrm{Data}\))

SRS-2

0.642 [0.598, 0.686]

2.07 × 1020

 < 0.001

0.514 [0.458, 0.567]

3.74 × 1018

< 0.001

RBS-R SM

0.385 [0.322, 0.444]

9.83 × 106

 < 0.001

0.294 [0.225, 0.363]

9.05 × 104

< 0.001

RBS-R RS

0.432 [0.372, 0.494]

1.25 × 107

 < 0.001

0.297 [0.228, 0.362]

1.68 × 105

< 0.001

BDI-II

0.420 [0.358, 0.480]

1.28 × 107

 < 0.001

0.159 [0.086, 0.232]

3.34

0.059

GAD-7

0.423 [0.360, 0.481]

1.34 × 107

 < 0.001

0.150 [0.082, 0.222]

2.18

0.087

BFNE-S

0.358 [0.292, 0.423]

3.21 × 104

 < 0.001

0.105 [0.030, 0.180]

0.258

0.446

PHQ-15

0.275 [0.208, 0.346]

23

0.019

0.093 [0.019, 0.165]

0.150

0.579

WHOQOL-4

− 0.357 [− 0.419,− 0.291]

4.23 × 104

 < 0.001

− 0.113 [− 0.188,− 0.039]

0.348

0.367

Suicidality

0.303 [0.222, 0.382]

19

0.009

0.111 [0.021, 0.198]

0.124

0.403

IPIP-N10

0.475 [0.416, 0.531]

9.90 × 109

 < 0.001

–

–

–

  1. All partial correlations (rp) control for neuroticism (IPIP-N10 scores) when examining the correlation between GAFS-8 scores and other variables of interest. Bayes factors indicating substantial evidence against the interval null hypothesis (i.e., r or lies within [− 0.2, 0.2] or rp lies within [− 0.1, 0.1]) are presented in bold, whereas Bayes factors indicating substantial evidence for the interval null hypothesis are presented in italics. Correlations are estimated using Bayesian methods and are presented along with 95% highest-density credible intervals (CrI). BFROPE = Bayes factor assessing interval null hypothesis that the effect falls within the region of practical equivalence (ROPE); \(P(\mathrm{ROPE}|Data\)) = proportion of the r/rp posterior distribution falling within the ROPE, conditioned on the observed data (i.e., probability that the interval null hypothesis is true); SRS-2 = Social Responsiveness Scale—Second Edition; RBS-R = Repetitive Behavior Scale—Revised; SM = Sensory Motor (“lower-order” repetitive behaviors) subscale; RS = Ritualistic/Sameness (“higher-order” repetitive behaviors) subscale; BDI-II = Beck Depression Inventory-II; GAD-7 = Generalized Anxiety Disorder-7; BFNE-S = Brief Fear of Negative Evaluation—Short; PHQ-15 = (modified) Patient Health Questionnaire-15; WHOQOL-4 = 4-Item World Health Organization Quality of Life Score; Suicidality = BDI-II item 9 (Suicidal Thoughts or Wishes); IPIP-N10 = 10-item neuroticism scale from the international personality item pool
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Molecular Autism

ISSN: 2040-2392