Author Question: In a follow-up study, a researcher reported that the correlation is .85. In the initial study, the ... (Read 158 times)

Shelles · **on:** Jul 31, 2018

In a follow-up study, a researcher reported that the correlation is .85. In the initial study, the correlation was .78. This means there is a(an):

a. Stronger correlation between the variables in the follow-up study
b. Weaker correlation between the variables in the follow-up study
c. Unknown difference between the two studies
d. Error and the researcher should repeat the study

Question 2

A student conducting a research study was told by her professor to use a scatterplot in conjunction with calculating the correlation coefficient. She discovered that the data points clustered along a straight line. This means:

a. the student cannot determine if a relationship exists
b. no relationship exists between variables
c. a nonlinear relationship exists between variables
d. a linear relationship exists between variables