A researcher measures the relationship between the number of interruptions during a class and time spent on

A researcher measures the relationship between the number of interruptions during a class and time spent €œon task€ (in minutes). Answer the following questions based on the results provided.

a. Compute the Pearson correlation coefficient.
b. Multiply each measurement of interruptions by 3 and recalculate the correlation coefficient.
c. Divide each measurement in half for time spent €œon task€ and recalculate the correlation coefficient.
d. True or false: Multiplying or dividing a positive constant by one set of scores (X or Y) does not change the correlation coefficient. Note: Use your answers in (a) to (c) to answer true or false.

Transcribed Image Text:

Number of Interruptions Time Spent"On Task" 18 3 40 20 32 2.