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You want to conduct research that documents the effects of watching violent cartoons on violence during children's playtime. Set up the following types of experimental and quasi-experimental designs: true experiment, non-equivalent group, before-and-after, ex-post facto, and Solomon four group. Which design do you think would produce the most valid results? Explain why.
Unbiased Estimate
A statistical estimate that is equally likely to be above or below the true population parameter, showing no systematic error.
Variance
A measure of variability that describes the average of the squared differences from the mean for a set of data.
Coefficient Of Determination
A measure, often denoted as R^2, that indicates the proportion of the variance in the dependent variable predictable from the independent variable(s).
Coefficient Of Correlation
A measure that determines the degree to which two variables' movements are associated.
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