D514 Exam prep Questions with Correct
Answers
Nominal data - ✔✔names, labels, or distinguishing numbers
ex: gender, hair color, zip code
Ordinal data - ✔✔order or rank
ex: satisfaction survey
Discrete data - ✔✔usually expressed by a whole number
ex: number of children in a family
Continuous data - ✔✔measured to the nearest
ex: body temperature, weight, height
t-test - ✔✔applies two different interventions on subjects split into two groups
ex: 100 patients with chronic migraines, one group receives pharmaceutical intervention
and the other receives injections
chi-square - ✔✔looks for relationships between categorical variables. you cannot put the
variables into an order
ex: relationship between depression and cardiac event
ANOVA - ✔✔compares more than two "like" groups using same different interventions
, ex: anterior knee pain. one group uses ice pack to reduce pain and another receives an
ultrasound three times a week, and another takes 500 mg Advil daily
Wilcoxon Signed-Rank test - ✔✔looks for differences between two sets of scores with
the same participants.
ex: men with lung cancer who see the same oncologists or women with lung cancer who are
tested every six months.
National Practitioner Data Bank (NPDB) - ✔✔for credentialing new providers, looks at
past employment and for any legal issues/ concerns for their past
National Center for Health Statistics - ✔✔operates through CDC, vital statistics such as
birth, death, marriage, divorce, fetal deaths
MEDPAR - ✔✔acute care and SNF claims data on patients using medicare
Health Resources and Services Administration - ✔✔improves healthcare to those in rural
areas, medically or economically vulnerable
ANOVA - ✔✔used to compare multiple interventions on a "like" group
t-test - ✔✔which group is more effective X or Y
Pearson's Correlation Coefficient - ✔✔tests relationship between interval or ratio data
ex: increase in blood pressure increasing with age
Answers
Nominal data - ✔✔names, labels, or distinguishing numbers
ex: gender, hair color, zip code
Ordinal data - ✔✔order or rank
ex: satisfaction survey
Discrete data - ✔✔usually expressed by a whole number
ex: number of children in a family
Continuous data - ✔✔measured to the nearest
ex: body temperature, weight, height
t-test - ✔✔applies two different interventions on subjects split into two groups
ex: 100 patients with chronic migraines, one group receives pharmaceutical intervention
and the other receives injections
chi-square - ✔✔looks for relationships between categorical variables. you cannot put the
variables into an order
ex: relationship between depression and cardiac event
ANOVA - ✔✔compares more than two "like" groups using same different interventions
, ex: anterior knee pain. one group uses ice pack to reduce pain and another receives an
ultrasound three times a week, and another takes 500 mg Advil daily
Wilcoxon Signed-Rank test - ✔✔looks for differences between two sets of scores with
the same participants.
ex: men with lung cancer who see the same oncologists or women with lung cancer who are
tested every six months.
National Practitioner Data Bank (NPDB) - ✔✔for credentialing new providers, looks at
past employment and for any legal issues/ concerns for their past
National Center for Health Statistics - ✔✔operates through CDC, vital statistics such as
birth, death, marriage, divorce, fetal deaths
MEDPAR - ✔✔acute care and SNF claims data on patients using medicare
Health Resources and Services Administration - ✔✔improves healthcare to those in rural
areas, medically or economically vulnerable
ANOVA - ✔✔used to compare multiple interventions on a "like" group
t-test - ✔✔which group is more effective X or Y
Pearson's Correlation Coefficient - ✔✔tests relationship between interval or ratio data
ex: increase in blood pressure increasing with age
