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Table 1 Correlations of IS and RSMA with ADI-R, ADOS, SRS and IQ measures.

From: Genome-wide linkage analyses of two repetitive behavior phenotypes in Utah pedigrees with autism spectrum disorders

Criterion IS RSMA t-Test
  Raw Res Raw Res IS vs. RSMA IS vs. IS-Adj RSMA vs. RSMA-Adj
ADI-R Social 0.30* 0.12 0.57* 0.50* 3.75* 8.98* 3.62*
ADI-R Comm 0.41* 0.27* 0.49* 0.40* 0.98 6.09* 4.19*
ADI-R RRSB 0.63* 0.46* 0.61* 0.42* 0.46 10.95* 11.77*
ADOS Score† - 0.01 - 0.10 0.29* 0.31* 3.60* 3.88* 0.87
SRS Mannerisms 0.29* 0.11 0.57* 0.51* 3.70* 8.60* 3.03*
First words -0.02 - 0.06 0.12 0.14 1.43 1.51 0.52
First phrases 0.10 0.03 0.22* 0.21* 1.18 2.26 0.36
VIQ 0.10 0.23* - 0.38* - 0.43* 5.52* 5.48* 2.09
NVIQ 0.17 0.30* - 0.37* - 0.45* 6.42* 5.68* 3.31*
FSIQ 0.11 0.25* - 0.41* - 0.47* 6.26* 6.25* 2.56
  1. ADI-R Comm, verbal communication; ADOS, Autism Diagnostic Observation Schedule; FSIQ, full scale IQ; IS, insistence on sameness; IS-Adj, IS adjusted for RSMA; NVIQ, nonverbal IQ; RRSB, restricted and repetitive stereotyped behavior; RSMA, repetitive sensory-motor actions; RSMA-Adj, RSMA adjusted for IS; SRS, Social Reciprocity Scale; VIQ, verbal IQ.
  2. *P < 0.01.
  3. †For ADOS score, partial correlations with ADOS 'module' effects removed are reported.
  4. The t-tests are two-tailed tests of the difference between correlations with the same criterion variable [70]. Sample sizes ranged from 131 to181, depending criterion variable.