PSYC 210 COMPREHENSIVE EXAMINATION
TEST QUESTIONS AND SOLUTIONS
VERIFIED COMPLETE RESOURCE
●● What type of statistic allows us to make judgments about the
population?
A. Random
B. Descriptive
C. Inferential
D. Intuitive
Answer: C. inferential
explanation: to infer conclusions about the population with the given
statistics
●● Variance is a(n) ______________ statistic?
A. Random
B. Descriptive
C. Inferential
D. Intuitive
Answer: B. descriptive
,explanation: tells us how much data with in a sample vary with each
other; the spread of the distribution
●● Which of these questions could be answered with descriptive
statistics alone?
A. What is the average GPA in PSYC210?
B. Do students perform better on the final relative to the midterm?
C. Does the number of hours spent studying predict midterm scores?
D. Do males and females have different GPAs?
Answer: A. What is the average GPA in PSYC210?
explanation: asking for the average/mean (center of the sample
distribution); the others are making judgements/infering
●● A _________________ variable has theoretically infinite values.
A. Dependent
B. Discrete
C. Ordinal
D. Continuous
Answer: D. Continuous
●● Using letter grades (A, B, C, D, and F) to classify student
performance is an example of a(n) __________ scale.
, A. Ratio
B. Continuous
C. Interval
D. Ordinal
Answer: D. Ordinal
explanation: there's an order/ranking but don't have specific intervals
and can't multiple or add these letter grades
●● Why would you be interested in graphing your data before
conducting any inferential statistics?
A. To see if you have any outliers that may impact the conclusions you
draw
B. Many statistics tests operate under the assumption that you have a
normal distribution
C. Jamovi will not let you conduct analyses without graphing your data
first
D. Both A and B
Answer: D. Both A and B
A. To see if you have any outliers that may impact the conclusions you
draw
B. Many statistics tests operate under the assumption that you have a
normal distribution
TEST QUESTIONS AND SOLUTIONS
VERIFIED COMPLETE RESOURCE
●● What type of statistic allows us to make judgments about the
population?
A. Random
B. Descriptive
C. Inferential
D. Intuitive
Answer: C. inferential
explanation: to infer conclusions about the population with the given
statistics
●● Variance is a(n) ______________ statistic?
A. Random
B. Descriptive
C. Inferential
D. Intuitive
Answer: B. descriptive
,explanation: tells us how much data with in a sample vary with each
other; the spread of the distribution
●● Which of these questions could be answered with descriptive
statistics alone?
A. What is the average GPA in PSYC210?
B. Do students perform better on the final relative to the midterm?
C. Does the number of hours spent studying predict midterm scores?
D. Do males and females have different GPAs?
Answer: A. What is the average GPA in PSYC210?
explanation: asking for the average/mean (center of the sample
distribution); the others are making judgements/infering
●● A _________________ variable has theoretically infinite values.
A. Dependent
B. Discrete
C. Ordinal
D. Continuous
Answer: D. Continuous
●● Using letter grades (A, B, C, D, and F) to classify student
performance is an example of a(n) __________ scale.
, A. Ratio
B. Continuous
C. Interval
D. Ordinal
Answer: D. Ordinal
explanation: there's an order/ranking but don't have specific intervals
and can't multiple or add these letter grades
●● Why would you be interested in graphing your data before
conducting any inferential statistics?
A. To see if you have any outliers that may impact the conclusions you
draw
B. Many statistics tests operate under the assumption that you have a
normal distribution
C. Jamovi will not let you conduct analyses without graphing your data
first
D. Both A and B
Answer: D. Both A and B
A. To see if you have any outliers that may impact the conclusions you
draw
B. Many statistics tests operate under the assumption that you have a
normal distribution
