Examlex
Assume a college professor wanted to know if the number of hours studied by her students was related to students' test scores. She would use:
Non-Directional
Refers to a hypothesis that predicts a change or difference but does not specify the direction of the change.
Sample Size
The number of observations or data points collected from a subset of a larger population for the purpose of statistical analysis.
Pearson Correlation
A measure of the linear correlation between two variables, showing how closely the data fit to a line.
Pearson Correlation
A measure of the linear correlation between two variables X and Y, giving a value between +1 and -1 inclusive, where 1 is total positive linear correlation, 0 is no linear correlation, and -1 is total negative linear correlation.
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