Testing of Hypothesis or Hypothesis Testing Made Easy

To whom is the researcher similar in hypothesis testing: the defense attorney or the prosecuting attorney? Why? The researcher is similar to the prosecuting attorney in the sense that the researcher brings the null hypothesis “to trial” when she believes there is a probability of …

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Interpreting Regression Coefficients

Interpreting Regression Coefficients in Multiple Regression In multiple regression models, for the interpreting regression coefficients, case, the unstandardized multiple regression coefficient is interpreted as the predicted change in $Y$ (i.e., the dependent variable abbreviated as DV) given a one-unit change in $X$ (i.e., the independent …

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Interpreting Regression Coefficients in Simple Regression

How are the regression coefficients interpreted in simple regression? The simple regression model is The formula for Regression Coefficients in Simple Regression Models is: $$b = \frac{n\Sigma XY – \Sigma X \Sigma Y}{n \Sigma X^2 – (\Sigma X)^2}$$ $$a = \bar{Y} – b \bar{X}$$ The …

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