NSG 522 Midterm Review
Questions with Accurate Answers
2 categorical variables correct answer 1. nominal
2. ordinal
2 components of epidemiology correct answer 1. descriptive
2. analytic
2 components of Margin of error correct answer 1. standard error of the
estimated parameter
2. a multiplier: a number based on the sample size
- multipiler is a "z value" or "t value" obtained form stat tables
2 continuous variables correct answer 1. interval
2. ratio
2 examples of interval level correct answer 1. temperature
2. standardized tests: IQ, SAT
2 key features of epidemiology correct answer 1. populations
2. population health
3 correlation coefficents correct answer - direction: positive or negative (inverse)
- strength:
,varies from 0 to 1.0
<0.30 is weak
0.3 or 0.5 is moderate
>0.5 is strong
- statistical significance:
<0.05 (0 - 0.0499)
3 principles of measurement correct answer 1. select the most accurate method
of measuring the variables
2. develop detailed procedures for how the measurement should be obtained
4. establish clear procedures for how the measurements are recorded
3 test for Contingency tables analysis (cross tabulations) correct answer 1. fisher
exact test
2. chi square test
3. McNemar test
4 important concepts for inferential stats correct answer 1. sampling
2. confidence intervals
3. probability
4. hypothesis testing
5 examples of ratio level variables correct answer 1. age
2. BMI
, 3. HR
4. Systolic blood pressure
5. total blood cholesterol level
5 measures of central location correct answer - mean
- median
-mode
-geometric mean: only use for logarithmic data
- midrange: very rarely used, not usually calculated
5 ordinal level examples correct answer 1. letter grades
2. likert type scales (1=extremely satisfied)
3. Ranking in a race
4. Cancer stages
5. number of children
5 steps to hypothesis testing correct answer 1. state the null and alt hypothesis
2. determine the level of significance use (alpha critical value)
3. determine what statiscial test to use
4. calculate the test statistic and determine the p value
5. apply your decision rule regarding the level of significance
5 W's of Epidemiology correct answer 1. what
2. when
Questions with Accurate Answers
2 categorical variables correct answer 1. nominal
2. ordinal
2 components of epidemiology correct answer 1. descriptive
2. analytic
2 components of Margin of error correct answer 1. standard error of the
estimated parameter
2. a multiplier: a number based on the sample size
- multipiler is a "z value" or "t value" obtained form stat tables
2 continuous variables correct answer 1. interval
2. ratio
2 examples of interval level correct answer 1. temperature
2. standardized tests: IQ, SAT
2 key features of epidemiology correct answer 1. populations
2. population health
3 correlation coefficents correct answer - direction: positive or negative (inverse)
- strength:
,varies from 0 to 1.0
<0.30 is weak
0.3 or 0.5 is moderate
>0.5 is strong
- statistical significance:
<0.05 (0 - 0.0499)
3 principles of measurement correct answer 1. select the most accurate method
of measuring the variables
2. develop detailed procedures for how the measurement should be obtained
4. establish clear procedures for how the measurements are recorded
3 test for Contingency tables analysis (cross tabulations) correct answer 1. fisher
exact test
2. chi square test
3. McNemar test
4 important concepts for inferential stats correct answer 1. sampling
2. confidence intervals
3. probability
4. hypothesis testing
5 examples of ratio level variables correct answer 1. age
2. BMI
, 3. HR
4. Systolic blood pressure
5. total blood cholesterol level
5 measures of central location correct answer - mean
- median
-mode
-geometric mean: only use for logarithmic data
- midrange: very rarely used, not usually calculated
5 ordinal level examples correct answer 1. letter grades
2. likert type scales (1=extremely satisfied)
3. Ranking in a race
4. Cancer stages
5. number of children
5 steps to hypothesis testing correct answer 1. state the null and alt hypothesis
2. determine the level of significance use (alpha critical value)
3. determine what statiscial test to use
4. calculate the test statistic and determine the p value
5. apply your decision rule regarding the level of significance
5 W's of Epidemiology correct answer 1. what
2. when
