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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: J Autism Dev Disord. 2018 Jun;48(6):1932–1944. doi: 10.1007/s10803-017-3458-9

Table 6.

Test-retest ICCs for Sample 2

JA Protocol Item ICC Interpretation (Cicchetti & Sparrow, 1990)
RJA 1 .50 Fair
RJA 2 .62 Good
RJA 3 .65 Good
RJA 4 0* Unknown
RJA 5 .65 Good
RJA 6 0* Unknown
RJA 7 .65 Good
RJA 8 0* Unknown

IJA 1 .55 Fair
IJA 2 .71 Good
IJA 3 .21 Poor
IJA 4 .36 Poor
IJA 5 .49 Fair
IJA 6 .62 Good
IJA 7 .18 Poor
IJA 8 .30 Poor

RJA Mean .80 Good
IJA Mean .83 Good
*

0 values due to errors in variance/covariance matrix when calculating ICCs for this small sample, likely due to perfect agreement on these items. Kappa statistics for these items = 1.