Which type of analysis combines the results of several similar studies?
1. An ANOVA is used to statistically combine the outcomes of several studies.
2. A MANOVA is used to statistically combine the outcomes of several studies.
3. A meta-analysis is used to statistically combine the outcomes of several studies.
4. The use of parameters rather than statistics is needed when comparing the results of several studies at once.
3
Rationale 1: The purpose of an ANOVA is to look at the effect of an independent variable on the dependent variable within one study.
Rationale 2: A MANOVA is similar to an ANOVA but a MANOVA examines the difference between the mean scores of two or more groups on two or more dependent variables.
Rationale 3: This technique does combine the results of several studies at once. This allows for the correction of type II errors often seen in studies with smaller sample sizes.
Rationale 4: Statistics are used when comparing outcomes between and among samples.
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