![]() ![]() So what does that mean? It is explaining why the percentiles on the GFTA-2 are different than what you would see on a typical test. Articulation ability is not normally distributed in the population in the same way as are many other abilities such as intelligence or vocabulary knowledge which can be based on standard scores” In outpatient settings, a 9th percentile score might qualify for services whereas a 91 wouldn’t.Īnyhow as I was reviewing the manual, I found a statement that said, “The standard deviation cannot be interpreted in the same way as other measures. I might have a client with a standard score of 91 and a percentile of 9. I had always found the GFTA-2 to have confusing norms/percentiles. It was to help me finalize new evaluation templates at my work. I know it sounds like a HUGE nerd alert, but it’s not like I brought it along on a beach vacation. A few months ago, I was reading the the Goldman Fristoe Test of Articulation-2 (GFTA-2) Administration manual. ![]()
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