TVPS-3 Scoring and Performance Measures

Each correct response is scored as “1” and a total score is recorded at the end of each subtest. Raw scores are then converted to scaled scores (0–19) and percent ranks. The overall score and index scores are calculated from the sum of the scaled scores and conveyed as standard scores.

Group average TVPS index, subtest scores, and percentile ranks for children with ASD are described in Table 2. Group average TVPS-Overall scores in our ASD cohort (mean = 95.40 ± 15.48) were within average range. Performance in our ASD participants was comparable to TVPS Overall scores in a validity sample of n = 14 children with ASD, ages 5–16 years, outlined in the TVPS manual (mean = 90.54 ± 16.17) and fell within one standard deviation of the expected mean. To our knowledge, this is the largest study to date reporting TVPS performance in an ASD cohort.

Group average TVPS scores, percentile ranks, and age equivalents within ASD sample (n = 48).

Group average percentile ranks for index standard and subtest scaled scores were calculated based on scoring procedures outlined in the TVPS manual. Reported percentile ranks reflect group average performance relative to the normative population. TVPS index and overall scores are reported as standard scores based on population distribution with a mean of 100 and standard deviation of 15.