Empirically conducted studies of the efficacy of various treatments for autism are limited, which leaves parents with little evidence on which to base their treatment decisions (Kasari, Journal of Autism and Developmental Disorders, 32: 447-461, 2002). The purpose of this study was to examine the types of treatments in current use by families of children with ASD. In addition, parents' perceptions of improvement in their child's functioning were explored. Through an online survey, a sample of 970 parents of ASD children reported on the treatments currently in use, those discontinued, and reasons for discontinuation. Results indicate that most families adopt multiple treatment approaches. Parents were most likely to discontinue non-evidence based treatments when they did not see improvement in their child's functioning.

Children's (N=89) identification accuracy was examined as a function of lineup size. Participants (8-13 years) viewed a videotaped staged event, described what was witnessed and then were presented with either a targetpresent or-absent lineup containing 6 versus 12 lineup members. The elimination lineup procedure (Pozzulo and Lindsay J Appl Psychol 38: 2195-2209 1999) was used to present lineups. No significant differences in correct identification rates were found across the target-present sized lineups. In addition, the target was likely to "survive" at a comparable rate regardless of lineup size. Moreover, there was no significant difference in correct rejection rate as a function of lineup size. The non significance of these data are critical given that most research with child witnesses uses 6-person lineups whereas in many real world contexts larger sized lineups are used (e.g., 12-person in Canada).

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