Unstandardized slope measures steepness of the best-fitting line; because It will depend on the units of measurement of the variables included, it must be interpreted in context.
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correlation coefficient
Correlation coefficient is a special case of slope in which both the outcome and explanatory variables are transformed into z scores prior to analysis; also known as Pearson's r.
regression line
A kind of model used when both the outcome and explanatory variables are quantitative; a two-parameter model, the parameters being the slope () and y-intercept ().
Pearson’s r
Pearson’s r is a special case of slope in which both the outcome and explanatory variables are transformed into z scores prior to analysis; also known as the correlation coefficient.