The standard deviation of a particular WISC-III subtest is 3, and its reliability coefficient is .84.
What is the standard error of measurement of the subtest?
A) 1.2 B) 2.5 C) 3.0 D) 2.0
Question 2
An item response curve is a plot of the
A) proportion of examinees who get an item right against the proportion who get it wrong.
B) proportion of examinees who get an item right against an external or internal criterion.
C) point-biserial correlations between item and total test scores.
D) frequency distribution of examinees at each total test score range who get the item right.
Three standard sizes of cuffs: a small cuff for a child or frail adult; a normal-sized adult cuff; ...
How to manually find the mean, variance, and standard deviation for a set of numbers
a) Standard PCR machine used for genotyping and (b) agarose gel to detect DNA fragments.
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