PSYC 1020H Lecture Notes - Lecture 6: Intellectual Disability, Twin, Acne Vulgaris
4 Apr 2016
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Document Summary
To observe and assess performances to identify abnormalities. Standardization allows psychologists to represent performance on a curve. Standard deviation measures the average difference between scores. Wechsler iq has a mean of 100 and standard deviation of 15. Value judgments cannot be added as it they are observations of behavior (cannot be good or bad) Z score is used to determine how many standard deviations above or below the mean to indicate abnormalities (xi answer, x mean, sd standard deviation) Fournier obtained a 90% while the rest of the class received an average 96% with a standard deviation of. Heart disease (per 100,000), mean = 168, sd = 30, peterborough. There are concerns of abnormality -2 or +2 of the standard deviation. Purely objective to context as numbers are more of a correlation than diagnosis. Abnormalities that can be narrowed down to race can be considered a genetic issue over a social issue.
