
BMD3024 Lecture 04 (Part 1)
Authored by Yvonne Lee
Social Studies
University
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements about Pearson’s correlation coefficient is not true?
t varies between –1 and +1.
It can be used as an effect size measure.
It can be used on ranked data.
It cannot be used with binary variables (those taking on a value of 0 or 1).
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When interpreting a correlation coefficient, it is important to look at:
The magnitude of the correlation coefficient.
The significance of the correlation coefficient.
The +/– sign of the correlation coefficient.
All of these.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The correlation between two variables A and B is 0.12 with a significance of p < .01. What can we conclude?
That there is a small relationship between A and B.
That there is a substantial relationship between A and B.
That variable A causes variable B.
All of these.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
15. If two variables are significantly correlated, r = .67, then:
The relationship is weak.
The variables are independent.
There is no unique variance.
They share variance.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
. Which of the following could not be a correlation coefficient:
–.27
2.7
0
.27
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