Question 1

Which of the following r values shows the strongest correlation between two variables?

Accepted Answer

A)   r = .6
B)   r = .3
C)   r = 0
D)   r = -.8E) A) and D)
F) All of the above

Question 2

In general, ______________ are more problematic than ________________ because they can produce spurious relationships.

Accepted Answer

A)   extraneous variables; mediating variables
B)   reciprocal variables; mediating variables
C)   common-causal variables; extraneous variables
D)   extraneous variables; common-causal variablesE) A) and D)
F) A) and C)

Question 3

Jarrod hypothesizes that getting plenty of sleep leads to lower blood pressure, and that lower blood pressure reduces stress. In this hypothesis, which of the following is the mediating variable?

Accepted Answer

A)   Stress
B)   Sleep
C)   Blood pressure
D)   The hypothesis does not have a mediating variableE) A) and C)
F) B) and D)

Exam 9: Correlational Research Designs

Which of the following r values shows the strongest correlation between two variables?

Correct Answer
verified

Jarrod hypothesizes that getting plenty of sleep leads to lower blood pressure, and that lower blood pressure reduces stress. In this hypothesis, which of the following is the mediating variable?

Correct Answer
verified

In general, are more problematic than __ because they can produce spurious relationships.

Correct Answer
verified

Exam 9: Correlational Research Designs

Which of the following r values shows the strongest correlation between two variables?

Correct AnswerverifiedShow Answer

Jarrod hypothesizes that getting plenty of sleep leads to lower blood pressure, and that lower blood pressure reduces stress. In this hypothesis, which of the following is the mediating variable?

Correct AnswerverifiedShow Answer

In general, ______________ are more problematic than ________________ because they can produce spurious relationships.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

In general, are more problematic than __ because they can produce spurious relationships.

Correct Answer
verified