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Stats- Chapter 9
Meta-analysis.
12
Psychology
Undergraduate 1
04/14/2014

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Term
Primary Literature
Definition
Papers reporting on original research.
Term
Secondary Literature
Definition
reviews the primary literature in one way or another.
Term
meta mean
Definition
M (mean of means).
Term
k
Definition
number of studies.
Term
weight
Definition
Wi represents the number of scores in each sample as a proportion of the total number of scores across all studies.
Term
Computing means when n is different
Definition
you must compute the means as weighted sums.
Term
Mean of mean based on weighted
Definition
Means calculated by weighted sum will be closer to u than M.
Term
(k-1)
Definition
compensates for the bias.
Term
Fixed effect model
Definition
all samples that are drawn from the sample population of scores.
Term
Random effect model
Definition
-permits the possibility that samples were drawn from different population of scores.
-a distribution of population means.
Term
u meta
Definition
the mean of the distribution of population means.
Term
Hypothesis testing
Definition
place a confidence interval around u meta and if the hypothesis falls within the interval, you retain it. If it falls outside the interval, you reject it.
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