DETAILED VERIFIED SOLUTIONS|GRADED A+|NEWEST 2026/2027
A research team designed a demographic questionnaire to collect information about
participants. Which of the following variables identified on the questionnaire provides an
example of an ordinal scale variable? - ANSWER Rank in the military
When comparing the four scales of measurement, what distinguishes the interval scale from
the ratio scale? - ANSWER Absolute zero
When looking at a list of student's test scores, the teacher notices that one test score is
extremely lower than the majority of the scores. This is known as a(an): - ANSWER outlier
A teacher analyzes the scores from a recent test and determines a positively skewed curve.
She infers that the majority of students knew: - ANSWER only a few of the answers due
to low scores
A researcher is looking for a specific study report, in which he knows the kurtosis value. He
reads the following kurtosis value in various reports. Which one supports a mesokurtic
distribution? - ANSWER 0
The teacher has a small class with only 7 students. The teacher grades their homework and
reports scores of 10, 7, 8, 12, 9, 11, and 13. What is the median? - ANSWER 10
There are 12 participants who agree to take the test for a study focused on wellness. The
total of all the participants' scores is 96. What is the mean? - ANSWER 8
The teacher calculates the highest score as being 97 and the lowest score as being 75. What
is the range? - ANSWER 22
1
, The teacher grades the papers and determines the following set of scores: 90, 85, 87, 85, 92,
90, 83, 85, 98. What is the mean? - ANSWER 85
The variance is determined to be 36. What would be the standard deviation? - ANSWER 6
A teacher reports that the class scores are generally distributed according to a bell curve.
This means: - ANSWER 100% of the scores fall between -3 and +3 standard deviations
from the mean
A researcher determines that there is a positive correlation between sleep and test scores.
This means as the amount of sleep is increased then test scores: - ANSWER increase
A teacher determines that the correlation between eating breakfast and doing well on the
test is zero. This means: - ANSWER there is an absence of a correlation
In comparing Spearman's Rho to Phi Coefficient, one would generally prefer to use
Spearman's Rho when correlating: - ANSWER Likert scale responses
A student conducting a research study was told by her professor to use a scatterplot in
conjunction with calculating the correlation coefficient. She discovered that the data points
clustered along a straight line. This means: - ANSWER a linear relationship exists between
variables
In studying the correlation between the number of hours studied and scores on the
comprehensive exam, the researcher found a correlation of .30. According to Cohen's
guidelines, what would this mean regarding the strength of the relationship? - ANSWER
Medium
In a follow-up study, a researcher reported that the correlation is .85. In the initial study, the
correlation was .78. This means there is a(an): - ANSWER Stronger correlation between
the variables in the follow-up study
2
A research team designed a demographic questionnaire to collect information about
participants. Which of the following variables identified on the questionnaire provides an
example of an ordinal scale variable? - ANSWER Rank in the military
When comparing the four scales of measurement, what distinguishes the interval scale from
the ratio scale? - ANSWER Absolute zero
When looking at a list of student's test scores, the teacher notices that one test score is
extremely lower than the majority of the scores. This is known as a(an): - ANSWER outlier
A teacher analyzes the scores from a recent test and determines a positively skewed curve.
She infers that the majority of students knew: - ANSWER only a few of the answers due
to low scores
A researcher is looking for a specific study report, in which he knows the kurtosis value. He
reads the following kurtosis value in various reports. Which one supports a mesokurtic
distribution? - ANSWER 0
The teacher has a small class with only 7 students. The teacher grades their homework and
reports scores of 10, 7, 8, 12, 9, 11, and 13. What is the median? - ANSWER 10
There are 12 participants who agree to take the test for a study focused on wellness. The
total of all the participants' scores is 96. What is the mean? - ANSWER 8
The teacher calculates the highest score as being 97 and the lowest score as being 75. What
is the range? - ANSWER 22
1
, The teacher grades the papers and determines the following set of scores: 90, 85, 87, 85, 92,
90, 83, 85, 98. What is the mean? - ANSWER 85
The variance is determined to be 36. What would be the standard deviation? - ANSWER 6
A teacher reports that the class scores are generally distributed according to a bell curve.
This means: - ANSWER 100% of the scores fall between -3 and +3 standard deviations
from the mean
A researcher determines that there is a positive correlation between sleep and test scores.
This means as the amount of sleep is increased then test scores: - ANSWER increase
A teacher determines that the correlation between eating breakfast and doing well on the
test is zero. This means: - ANSWER there is an absence of a correlation
In comparing Spearman's Rho to Phi Coefficient, one would generally prefer to use
Spearman's Rho when correlating: - ANSWER Likert scale responses
A student conducting a research study was told by her professor to use a scatterplot in
conjunction with calculating the correlation coefficient. She discovered that the data points
clustered along a straight line. This means: - ANSWER a linear relationship exists between
variables
In studying the correlation between the number of hours studied and scores on the
comprehensive exam, the researcher found a correlation of .30. According to Cohen's
guidelines, what would this mean regarding the strength of the relationship? - ANSWER
Medium
In a follow-up study, a researcher reported that the correlation is .85. In the initial study, the
correlation was .78. This means there is a(an): - ANSWER Stronger correlation between
the variables in the follow-up study
2
