BESC 3010 Final Questions With Complete
Solutions
A chi-squared test is conducted: Correct Answers
When the independent and dependent variables
are nominal/ordinal data
A data set has non-linear relationship between two
variables. Which of the calculations below are
affected by this problem? Correct Answers
Pearson's r
A post-hoc test is required when the null
hypothesis has been rejected for which statistical
test? Correct Answers ANOVA
A problem with using the sample standard
deviation to estimate the population standard
deviation is: Correct Answers The sample
standard deviation underestimates the population
standard deviation.
A researcher calculated a Pearson's r found that
there was no relationship between X and Y. The
effect size for the data is Correct Answers 0
A researcher conducts two studies on depression
severity with the same independent and
dependent variables. Study A had a sample size of
500 and the p-value was calculated at .002. Study
, B also had a sample size of 500 and the p-value
was calculated at .033. Which study had the
smaller effect size? Correct Answers Study B
A researcher conducts two studies on relational
satisfaction with the same independent and
dependent variables. After conducting a two-
sample t-test, Study A was found to have an effect
size of .65 and a p-value of .0001. Study B was
found to have an effect size of .65 and a p-value
of .076. Which study has the smaller sample size?
Correct Answers Study B
A researcher uses alpha as the criteria or critical
value for the maximum probability of incorrectly
rejecting the null hypothesis. She conducts a z-test
with alpha = .05 and finds the p-value is .02. The
researcher should: Correct Answers Reject the
null hypothesis
A sampling distribution of means is: Correct
Answers A distribution of means from many
samples
A two-sample t-test is conducted: Correct Answers
When two sample means are being compared
According to the Central Limit Theorem, it is safe to
assume that given an infinite number of samples:
Correct Answers The shape of the distribution of
Solutions
A chi-squared test is conducted: Correct Answers
When the independent and dependent variables
are nominal/ordinal data
A data set has non-linear relationship between two
variables. Which of the calculations below are
affected by this problem? Correct Answers
Pearson's r
A post-hoc test is required when the null
hypothesis has been rejected for which statistical
test? Correct Answers ANOVA
A problem with using the sample standard
deviation to estimate the population standard
deviation is: Correct Answers The sample
standard deviation underestimates the population
standard deviation.
A researcher calculated a Pearson's r found that
there was no relationship between X and Y. The
effect size for the data is Correct Answers 0
A researcher conducts two studies on depression
severity with the same independent and
dependent variables. Study A had a sample size of
500 and the p-value was calculated at .002. Study
, B also had a sample size of 500 and the p-value
was calculated at .033. Which study had the
smaller effect size? Correct Answers Study B
A researcher conducts two studies on relational
satisfaction with the same independent and
dependent variables. After conducting a two-
sample t-test, Study A was found to have an effect
size of .65 and a p-value of .0001. Study B was
found to have an effect size of .65 and a p-value
of .076. Which study has the smaller sample size?
Correct Answers Study B
A researcher uses alpha as the criteria or critical
value for the maximum probability of incorrectly
rejecting the null hypothesis. She conducts a z-test
with alpha = .05 and finds the p-value is .02. The
researcher should: Correct Answers Reject the
null hypothesis
A sampling distribution of means is: Correct
Answers A distribution of means from many
samples
A two-sample t-test is conducted: Correct Answers
When two sample means are being compared
According to the Central Limit Theorem, it is safe to
assume that given an infinite number of samples:
Correct Answers The shape of the distribution of
