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NURS 211 (Statistics) (Full review) Questions with complete solutions
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NURS 211 (Statistics) (Full review) Questions withcomplete solutions
nominal, ordinal, interval, ratio Correct Answer-What are the 4 Levels
of Measurement?
Hint: N.O.I.R
Categorical variable Correct Answer-A variable that has a finite number
of classification groups/ categories, which are usually qualitative in
nature
Continuous variable Correct Answer-A variable that has a infinite
number of potential values, with value being measured falling
somewhere on a continuum containing in-between values.
Empirical method Correct Answer-What method is a way of gathering
information through systematic observation and experimentation?
Parameter Correct Answer-___________ is a measurable characteristic
of a population
Statistic Correct Answer-_____________ is an estimate derived from a
sample
- numerical measurement describing some characteristic of a sample
,Estimate Correct Answer-_____________ is a preliminary
approximation
Qualitative measure Correct Answer-What measure describes or
characterizes an attribute?
- data in words
ex. The day is "warm" or "cold"
Quantitative measure Correct Answer-What measure reflects a numeric
amount?
- data in numbers
ex. writing down the temperature for the day
Nominal Correct Answer-Marital status: you're either married (together)/
divorce(not together) Is an example of what level of measurement?
Hint: sounds like "Name/Nom"
- no order, either has it or doesn't
Ordinal Correct Answer-Pain scale, stress scale (ex: low, medium, high
stress level) is an example of what level of measurement?
,Hint: sounds like "Ordered"
- no equal interval between the values
- Comparison between smaller value to bigger value
Interval Correct Answer-Temperature and Student tests are examples
what level of measurement?
- Ordered,
- Equal ___________ between values
- No true "zero"
Ratio Correct Answer-Tests such as: Blood pressure, (if patient's BP is 0
then they're in trouble, heart isn't beating, dead = true zero),
- blood sugar, renal function, glascow coma scale, BMI etc. Are
examples of what level of measurement?
-Ordered
- Equal interval between values
- Has a true zero
- Very precise, accuracy (best for healthcare)
- bodily measures ex.) there can be 0 weight gain
, Dependent variable Correct Answer-The _________________ is the
outcome factor.
- The variable that may change in response to manipulations of the
independent variable.
- Depends on independent variable
Independent variable Correct Answer-The _______________ is the
variable that experimenter can change
- influences dependent variable.
Mean Correct Answer-____________(M)
- average,
[Calculation: add all numbers then, divide by number of values]
Ex: Videos, Reading
- Good for interval and ratio data
- Best measure for symmetrical distribution of data
Median Correct Answer-___________- middle (Medium)
[Calculation: Arrange in order,
Number is odd = middle value
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