PSY 334 Lecture Notes - Lecture 6: Pediatrics, Asperger Syndrome, Childhood Autism Rating Scale

• School: Stony Brook University
• Department: Psychology
• Course: PSY 334
• Professor: Kristin Bernad

Document Summary

Sensitivity & specificity: sensitivity: the ability for the instrument to pick up if someone actually has asd (its inclusive to capture anyone who might have asd. Perfect sensitivity = 1) if something is overly sensitive, it catches people who don"t have asd: specificity: i want to make sure i only catch people with autism even if i don"t catch everybody. What makes a measure useful is its statistical properties. Divergent validity: does it fail to correlate with factors that measure different constructs (age, race, ses) Predictive validity: does it predict onto something that i expect. Construct validty: does it measure the construct im thinking about (asd diagnoses) When are characteristics first spotted: board developmental delay (e. g. delayed speech, and/or regress after a certain age (e. g. acquire a few words, then rapidly withdraw ) Traditional: clinical observation, parent report, teacher report (likely to overrate because theyre worried about their kid, might rate higher than actually is.