Flashcards in Standard Scores Deck (11)
little z score
z=individual score - mean/standard deviation
standard score: the transformation of postion of __________ into equivalent __________ units from the mean score.
indivudal score; standard deviation
what are the 2 requirements for use of z scores?
1. an assumption of normal distributions
2. interval or ratio data
advantages of z scores?
a comparison of individuals performance across multiple measures
big Z score
what are the measures of central tendency?
mean, median, mode
measures of variability?
standard deviation, range and truncuated range
measures of association?
correlation of coefficients
what are the 2 ways individual scores can be reported?
percentiles & standard scores