1 for specific request mail
NUR 3405 Quiz 4 Questions and Correct Answers |
Latest Update
What indexes do descriptive statistics contain? Ans: - variability of
distribution
- frequency distributions
- central tendency
- standard deviation
© 2026 Assignment
A systematic arrangement of values from lowest to highest, together with
a count or percentage of how many times each value occurred is: Ans: -
Guru01 - Stuvia
frequency distribution
Expert
Homogeneous data set Ans: - a narrow range or smaller variation
Negative correlation coefficient Ans: - relationship where one variable
increases while the other decreases
- between .00-1.00
- the higher the absolute value of a coefficient, the stronger the
relationship (-.80 is stronger than +.20)
The use of inferential statistics permits a researcher to: Ans: - draw
conclusions about a population based on information gathered from a
sample
Statistical hypothesis testing Ans: - use of objective criteria for deciding
whether research hypotheses should be accepted as true or rejected as
false
Type I Error Ans: - rejecting a true null hypothesis, false positive
Type II Error Ans: - failing to reject a false null hypothesis, false
negative
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How do researchers control the risk of making a type I error? Ans: - by
selecting a level of significance which is the probability that such an
error will occur
significance level (alpha) Ans: - what we compare our p-value to, 0.05 is
commonly used
P < 0.05 Ans: reject the null hypothesis
Chi-square test Ans: - used to test hypotheses about the proportion of
cases in different categories
© 2026 Assignment
T-Test Ans: - test the difference between the means of two groups
Guru01 - Stuvia
What important aspects of validity should an instrument or scale
Expert
examine? Ans: - criterion related validity
- content validity
- construct validity
Common threats to internal validity Ans: - selection
- mortality
- maturation
- history
External validity is important to EBP because it allows researchers to
Ans: - generalize evidence from controlled settings to real-world practice
settings
What does internal validity measure? Ans: - the research results for
accuracy
What are common threats to external validity? Ans: - experimenter
- reactivity
NUR 3405 Quiz 4 Questions and Correct Answers |
Latest Update
What indexes do descriptive statistics contain? Ans: - variability of
distribution
- frequency distributions
- central tendency
- standard deviation
© 2026 Assignment
A systematic arrangement of values from lowest to highest, together with
a count or percentage of how many times each value occurred is: Ans: -
Guru01 - Stuvia
frequency distribution
Expert
Homogeneous data set Ans: - a narrow range or smaller variation
Negative correlation coefficient Ans: - relationship where one variable
increases while the other decreases
- between .00-1.00
- the higher the absolute value of a coefficient, the stronger the
relationship (-.80 is stronger than +.20)
The use of inferential statistics permits a researcher to: Ans: - draw
conclusions about a population based on information gathered from a
sample
Statistical hypothesis testing Ans: - use of objective criteria for deciding
whether research hypotheses should be accepted as true or rejected as
false
Type I Error Ans: - rejecting a true null hypothesis, false positive
Type II Error Ans: - failing to reject a false null hypothesis, false
negative
, 2 for specific request mail
How do researchers control the risk of making a type I error? Ans: - by
selecting a level of significance which is the probability that such an
error will occur
significance level (alpha) Ans: - what we compare our p-value to, 0.05 is
commonly used
P < 0.05 Ans: reject the null hypothesis
Chi-square test Ans: - used to test hypotheses about the proportion of
cases in different categories
© 2026 Assignment
T-Test Ans: - test the difference between the means of two groups
Guru01 - Stuvia
What important aspects of validity should an instrument or scale
Expert
examine? Ans: - criterion related validity
- content validity
- construct validity
Common threats to internal validity Ans: - selection
- mortality
- maturation
- history
External validity is important to EBP because it allows researchers to
Ans: - generalize evidence from controlled settings to real-world practice
settings
What does internal validity measure? Ans: - the research results for
accuracy
What are common threats to external validity? Ans: - experimenter
- reactivity
