This difference in means (~7.5 pg/mL higher in ASD on average) did not reach statistical significance at the 5% level when analyzed with a standard t -test that does not assume equal variances ( p ≈ 0.09).
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Salivary Oxytocin Levels in Children With and Without Autism: Group Similarities and Subgroup Variability.
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failed to reach significancep = 0.20
~15.36 pg/mL for male controls, but this difference failed to reach significance (Welch’s t , p = 0.20).
This transformation makes it easier to detect any subtle group differences, though in this case the group means remain statistically non-significant ( p = 0.102), though a numerical trend persists.