Question

QUESTION 2

1. When making a scatter diagram,

   		the values on the vertical axis go from highest at the bottom to lowest at the top.
   		the overall shape should be roughly square.
   		two dots are used to mark each score.
   		outlying values are excluded to maintain the proper shape.

1 points   

QUESTION 3

1. When multiple regression statistics are reported in a psychology research article,

   		the correlation coefficients for the predictor variables usually appear in the text.
   		the unstandardized regression coefficients for the predictor variables usually appear in the text.
   		the standardized regression coefficients for the predictor variables usually appear in the text.
   		the coefficients for the predictor variables (be it b, β, or both) usually appear in a table.

1. Which limitation is applicable to both correlation and regression?

   		The degree of predictability will be underestimated if the underlying relationship is linear.
   		Nothing can be inferred about the direction of causality.
   		Restrictions in range and unreliable measures are uncommon.
   		The relative importance of different predictor variables cannot be assessed.

QUESTION 17

1. The regression constant in the best linear prediction rule is

   		the mean of the criterion variable minus the result of multiplying the regression coefficient by the mean of the predictor variable.
   		the mean of the criterion variable plus the result of multiplying the regression coefficient by the mean of the predictor variable.
   		the mean of the criterion variable minus the result of dividing the regression coefficient by the mean of the predictor variable.
   		the mean of the criterion variable plus the result of dividing the regression coefficient by the mean of the predictor variable.

Answer 1

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Q2)

1. False- its actually the opposite

2. False - no rule like that

3. Two dots mark 1 score - True, that how each value is displayed on the scatter plot

4. False