Page | 1
HLSC 476 - EXAM 1 REVIEW 2026
UPDATED QUESTIONS AND ANSWERS|
ACE YOUR GRADES.
What is the advantage of random samples over convenience
samples?
a. They require less effort and cost less
b. The target population is clear and the sample is obtained in an
unbiased way from the population
c. They result in fewer dropouts from the study
d. They produce a more homogenous sample - correct answer -b.
The target population is clear and the sample is obtained in an
unbiased way from the population
The strength of association between two variables is indicated by
which statistical method?
a. Correlation coefficient
b. Cronbach's alpha
c. Dichotomous measurement
d. Histogram - correct answer -a. Correlation coefficient
, Page | 2
When one variable precedes the other in time and the correlation
between them is high, which statement can be made with
confidence?
a. The variable that comes earliest in time causes the other
variable
b. There is a high level of association between the two variables
c. The two variables have an association with an outcome
variable
d. There are no extraneous variables at work in the situation -
correct answer -b. There is a high level of association between
the two variables
What are the two dimensions that describe a relationship between
two variables?
a. Truth and consequences
b. Direction and strength
c. Strength and weakness
d. Increasing and decreasing variation - correct answer -b.
Direction and strength
What does a negative correlation statistic value mean?
a. For most individuals, both variables had values less than zero
b. The results are the opposite of what was expected
HLSC 476 - EXAM 1 REVIEW 2026
UPDATED QUESTIONS AND ANSWERS|
ACE YOUR GRADES.
What is the advantage of random samples over convenience
samples?
a. They require less effort and cost less
b. The target population is clear and the sample is obtained in an
unbiased way from the population
c. They result in fewer dropouts from the study
d. They produce a more homogenous sample - correct answer -b.
The target population is clear and the sample is obtained in an
unbiased way from the population
The strength of association between two variables is indicated by
which statistical method?
a. Correlation coefficient
b. Cronbach's alpha
c. Dichotomous measurement
d. Histogram - correct answer -a. Correlation coefficient
, Page | 2
When one variable precedes the other in time and the correlation
between them is high, which statement can be made with
confidence?
a. The variable that comes earliest in time causes the other
variable
b. There is a high level of association between the two variables
c. The two variables have an association with an outcome
variable
d. There are no extraneous variables at work in the situation -
correct answer -b. There is a high level of association between
the two variables
What are the two dimensions that describe a relationship between
two variables?
a. Truth and consequences
b. Direction and strength
c. Strength and weakness
d. Increasing and decreasing variation - correct answer -b.
Direction and strength
What does a negative correlation statistic value mean?
a. For most individuals, both variables had values less than zero
b. The results are the opposite of what was expected
