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Module 1 Exam - Requires Respondus
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Question 1
Compute the mean (M) of the following numbers: 40, 15, 15, 15, 10. Please show your
work.
19
Question 2
If r= -0.50, is this an inverse or positive relationship?
inverse
positive
Question 3
Identify the mode: 12, 14, 11, 15, 16, 11. [answer1]
Correct!
Correct Answers
11
Question 4
Perform the following statistical function when X1 = 4 and X2 = 16: ΣX.
, Answer:
20
Question 5
Given a correlation coefficient of + 0.20, is this a strong or a weak relationship?
strong
weak
Question 6
What is the purpose of a scientific experiment, compared to other types of research
studies?
Answer:
Finding out what causes something
Question 7
Short essay answers should be in clearly written in full sentences.
Why should a researcher use random assignment to groups in a research experiment?
Answer:
to minimize experimenter bias.
Question 8
True or false? Presenting on or publishing research results is one of the steps of the
scientific method.
True
False
Question 9
True or false? To have a true random sample, the researcher must be able to contact
every person within the population of study.