HLT362 Week 3 Quiz

If you are conducting a study on the impacts of diet and exercise on high blood pressure and you take a proportional sample based upon race/ethnicity, this would be an example of: Simple random sample Cluster sampling Stratified sampling Convenience sampling If a researcher does not select the appropriate level of significance (alpha) based upon prior research or industry standard and concludes that the study found a statistical difference when in fact there was no difference, this is referred to as: Validity Reliability Type I error Type II error To obtain a sample of 20 patients in ICU, clinician goes to the ICU and selects the current patients. This is an example of a: Judgement sampling Simple random sampling Snowball sampling Convenience sampling This study source was downloaded by from CourseH on :24:01 GMT -05:00 Scenario Based Question: If you were conducting a study of blood pressure readings in a hospital unit, compared AM and PM readings, and assumed the data were normally distributed and variances were equal, what type of statistical test would be conducted? Separate variance t-test Paired t-test