WGU D514 Test questions & answers
graded A+ 2025-2026
Quantitative Data - correct answer ✔✔"Static" Numeric and Verifiable Data.
Qualitative Data - correct answer ✔✔Observable, categorical and subjective Data.
P Value - correct answer ✔✔The probability of results of the experiment being attributed to
chance. Utilized to test the hypothesis. Lower P value indicates results are impacted by
intervention.
Independent Variable - correct answer ✔✔Has an affect on the dependent variable "what you
control"
(Exercise machine) to see if BP is lowered, patient is on BP meds
Dependent Variable - correct answer ✔✔Variable that is going to change as a result of
intervention
Exercise machine to see if (BP is lowered), patient is on BP meds)
Confounding Variable - correct answer ✔✔obscures effect of another variable
Exercise machine to see if BP is lowered, patient is on (BP meds)
, Ordinal Variable - correct answer ✔✔a qualitative variable that incorporates an ordered
position, or ranking.
ex. income levels, levels of agreement, levels of satisfaction
Continuous Variable - correct answer ✔✔A variable that can take any value in a given range
(AKA Interval variable)
Numerical/Quantitative
ex. 10 degree temperature change, equal points on a chart.
ex. credit score, GMAT score, Temperature
Dichotomous Variable - correct answer ✔✔Binary variable, occurs in only two possible states.
ex. Patient is diabetic or non diabetic
Cross Sectional Study - correct answer ✔✔Analyses data from subset at a specific time. Data
that will be pulled is predetermined.
ex. HR pulling records into how many employees were injured last week.
Time Series Study - correct answer ✔✔Analyzing data taken at predetermined points.
Made up of multiple cross sectional data pulls.
graded A+ 2025-2026
Quantitative Data - correct answer ✔✔"Static" Numeric and Verifiable Data.
Qualitative Data - correct answer ✔✔Observable, categorical and subjective Data.
P Value - correct answer ✔✔The probability of results of the experiment being attributed to
chance. Utilized to test the hypothesis. Lower P value indicates results are impacted by
intervention.
Independent Variable - correct answer ✔✔Has an affect on the dependent variable "what you
control"
(Exercise machine) to see if BP is lowered, patient is on BP meds
Dependent Variable - correct answer ✔✔Variable that is going to change as a result of
intervention
Exercise machine to see if (BP is lowered), patient is on BP meds)
Confounding Variable - correct answer ✔✔obscures effect of another variable
Exercise machine to see if BP is lowered, patient is on (BP meds)
, Ordinal Variable - correct answer ✔✔a qualitative variable that incorporates an ordered
position, or ranking.
ex. income levels, levels of agreement, levels of satisfaction
Continuous Variable - correct answer ✔✔A variable that can take any value in a given range
(AKA Interval variable)
Numerical/Quantitative
ex. 10 degree temperature change, equal points on a chart.
ex. credit score, GMAT score, Temperature
Dichotomous Variable - correct answer ✔✔Binary variable, occurs in only two possible states.
ex. Patient is diabetic or non diabetic
Cross Sectional Study - correct answer ✔✔Analyses data from subset at a specific time. Data
that will be pulled is predetermined.
ex. HR pulling records into how many employees were injured last week.
Time Series Study - correct answer ✔✔Analyzing data taken at predetermined points.
Made up of multiple cross sectional data pulls.
