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1) The 10-question survey instrument used to measure neuropathy symptoms in this study was compared to a previously validated 500-question version, and similar results were obtained

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1) The 10-question survey instrument used to measure neuropathy symptoms in this study was compared to a previously validated 500-question version, and similar results were obtained. This is an example of establishing what type of validity?

2) The researcher knows of a validated survey instrument to measure neuropathy symptoms, but it has 500 questions and requires a college-level reading ability to understand. These features limit what aspect of the measurement tool?

3) The study anticipates subjects treated with drug A will have substantial improvement in their neuropathy symptoms. What effect size is anticipated, and what does that mean in terms of the sample size needed?

4) 1) If the study measures neuropathy symptoms on a scale of 1–10, what level of measurement is this variable? 2) If the study measures neuropathy symptoms as mild, moderate, or severe, what level of measurement is this variable?

5) 1) If the study measures treatment with drug A as given or not given, what level of measurement is this variable? 2) If the study measures treatment with drug A as not given, low dose, or high dose, what level of measurement is this variable?

6) 1) You determine after the trial that the actual effect size from the medication was smaller than you initially thought. Your conclusion may be what type of error? 2) What was the most likely cause of this error?

7) 1) Write an alternative hypothesis for your study. 2) If you select an alpha of 0.05 and a power of 80%, what does your decision mean? 3) Your study has an alpha of 0.05. Your statistical test determines that the p-value for the relationship between taking one tablet of drug A daily and lowering cholesterol is 0.02. What do you conclude?

8) 1) How could you measure your dependent variable qualitatively? Would this be a continuous or categorical variable? 2) What level of measurement 3) would this variable be? 4) Write a null hypothesis for your study

9) 1) How could you measure your dependent variable quantitatively? 2) Would this be a continuous or categorical variable? 3) What level of measurement would this variable be?

10) 1) Does increasing the alpha increase or decrease the risk of a type one error? 2) What is your independent variable? 3) What is your dependent variable?