BST 322 final UPDATED Exam Questions
and CORRECT Answers
Information collected in a numerical form is called - CORRECT ANSWER- quantitative
Which measure of central tendency is at the highest point on a graph? - CORRECT
ANSWER- mode
Correlation coefficient tests allow you to determine if a cause and effect relationship is
present. - CORRECT ANSWER- false
Data that are categorical but can be rank-ordered in a meaningful way are called: -
CORRECT ANSWER- ordinal
If the mean is to the left of the median, what is true? - CORRECT ANSWER- The
distribution is negatively skewed.
Which measure of variability is used most often in conjunction with the mean? - CORRECT
ANSWER- standard deviation
A variable with equal distances between score units which also has a true meaningful zero is:
- CORRECT ANSWER- ratio
When calculating a Pearson's correlation coefficient, it is necessary that both variables have
approximately normal distributions. - CORRECT ANSWER- True
In a study that examines the effect of a peer mentor on the emotional status of patients, what
is the dependent variable? - CORRECT ANSWER- emotional status
Which quartile has the same value as the median? - CORRECT ANSWER- 50%
The third quartile is: - CORRECT ANSWER- the point below which 75% of the scores lie.
, Statistics that allow for inferences to be made about a population from the study of a sample
are known as: - CORRECT ANSWER- inferential
What is the best description of the distribution below?
__/\_ - CORRECT ANSWER- leptokurtic
The variable "Group assignment" is an example of what level of measurement? - CORRECT
ANSWER- nominal
The measure of central tendency that is the point at which half the scores fall above and half
the scores fall below is the: - CORRECT ANSWER- median
The variable "religion" is an example of what level of data? - CORRECT ANSWER- nominal
The standard deviation is: - CORRECT ANSWER- the square root of the variance
The variable "miles per hour" is an example of what level of data: - CORRECT ANSWER-
ratio
What percent of the children in the study are Hispanic? - CORRECT ANSWER- 19% (in
quiz's chart)
The mean and the mode are always the same for a dataset of over 10 values. - CORRECT
ANSWER- false
If you wanted to test a set of patients' responses to a given therapy at 1, 3, and 6 months, you
would use which statistical test? - CORRECT ANSWER- Repeated measures ANOVA
Nurse researchers hypothesized that the use of therapeutic touch would reduce anxiety levels
in pre-op hip replacement patients. The null hypothesis would be: - CORRECT ANSWER-
Therapeutic touch does not reduce anxiety levels in pre-op hip replacement patients.
and CORRECT Answers
Information collected in a numerical form is called - CORRECT ANSWER- quantitative
Which measure of central tendency is at the highest point on a graph? - CORRECT
ANSWER- mode
Correlation coefficient tests allow you to determine if a cause and effect relationship is
present. - CORRECT ANSWER- false
Data that are categorical but can be rank-ordered in a meaningful way are called: -
CORRECT ANSWER- ordinal
If the mean is to the left of the median, what is true? - CORRECT ANSWER- The
distribution is negatively skewed.
Which measure of variability is used most often in conjunction with the mean? - CORRECT
ANSWER- standard deviation
A variable with equal distances between score units which also has a true meaningful zero is:
- CORRECT ANSWER- ratio
When calculating a Pearson's correlation coefficient, it is necessary that both variables have
approximately normal distributions. - CORRECT ANSWER- True
In a study that examines the effect of a peer mentor on the emotional status of patients, what
is the dependent variable? - CORRECT ANSWER- emotional status
Which quartile has the same value as the median? - CORRECT ANSWER- 50%
The third quartile is: - CORRECT ANSWER- the point below which 75% of the scores lie.
, Statistics that allow for inferences to be made about a population from the study of a sample
are known as: - CORRECT ANSWER- inferential
What is the best description of the distribution below?
__/\_ - CORRECT ANSWER- leptokurtic
The variable "Group assignment" is an example of what level of measurement? - CORRECT
ANSWER- nominal
The measure of central tendency that is the point at which half the scores fall above and half
the scores fall below is the: - CORRECT ANSWER- median
The variable "religion" is an example of what level of data? - CORRECT ANSWER- nominal
The standard deviation is: - CORRECT ANSWER- the square root of the variance
The variable "miles per hour" is an example of what level of data: - CORRECT ANSWER-
ratio
What percent of the children in the study are Hispanic? - CORRECT ANSWER- 19% (in
quiz's chart)
The mean and the mode are always the same for a dataset of over 10 values. - CORRECT
ANSWER- false
If you wanted to test a set of patients' responses to a given therapy at 1, 3, and 6 months, you
would use which statistical test? - CORRECT ANSWER- Repeated measures ANOVA
Nurse researchers hypothesized that the use of therapeutic touch would reduce anxiety levels
in pre-op hip replacement patients. The null hypothesis would be: - CORRECT ANSWER-
Therapeutic touch does not reduce anxiety levels in pre-op hip replacement patients.
