FALSE CONCLUSIONS ABOUT VINELAND STANDARD SCORES - SILVERSTEIN TYPE-I ERRORS AND OTHER ARTIFACTS

  • 1 July 1986
    • journal article
    • research article
    • Vol. 91  (1) , 5-9
Abstract
Silverstein expressed concern that Vineland means and standard deviations (SDs) vary considerably from age group to age group in the national standardization sample. He concluded that as a result the following assesments are compromised: standard errors of measurement, domain strengths and weaknesses, and domain pairwise comparions. This reply serves to document that Silverstein''s reasoning is invalid and is directly attributable to his explicable failure to control for Type I error in his comparing 61 sample means and 61 sample SDs to population values of 100 and 15, respectively. Vineland users are cautioned to disregard caveats that are based upon flawed reasoning and invalid biostatistical arguments.