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Psy334
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Initial outcome:
Raw score (add up scores in category).
Norm
: based on population.
Types of norms:
percentiles, age equivalent, standard scores (ex: Weschler).
Central tendency:
mean, median, and mode; score in the middle (extremes).
Variance and standard deviation: Variance is SD squared
Standard deviation (SD)
:
how far from mean; get mean from SD.
Normal curve:
68% fall below and above 1 SD; average above 34% above or below the SD (ex: distribution of mental health scores will approximate the normal curve).
Skewed distribution:
negative-too many easy questions; positive-too many hard questions; median is correct score.
Author
Luimi
ID
316911
Card Set
Psy334
Description
Chapter 3
Updated
2016-03-07T01:07:54Z
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