医学统计学英文选择题

Which of the following is a measure of central tendency? a. Standard deviation b. Range c. Median d. Variance

Answer: c. Median

Which of the following is a measure of dispersion? a. Mean b. Mode c. Standard deviation d. Skewness

Answer: c. Standard deviation

Which of the following is a type of probability sampling? a. Convenience sampling b. Quota sampling c. Snowball sampling d. Simple random sampling

Answer: d. Simple random sampling

Which of the following is a type of non-probability sampling? a. Stratified sampling b. Cluster sampling c. Convenience sampling d. Systematic sampling

Answer: c. Convenience sampling

Which of the following is a type of hypothesis? a. Null hypothesis b. Alternative hypothesis c. Both a and b d. Neither a nor b

Answer: c. Both a and b

Which of the following is a type of study design? a. Case-control study b. Cross-sectional study c. Randomized controlled trial d. All of the above

Answer: d. All of the above

Which of the following is a measure of association? a. Odds ratio b. Relative risk c. Both a and b d. Neither a nor b

Answer: c. Both a and b

Which of the following is a type of statistical test? a. T-test b. ANOVA c. Chi-square test d. All of the above

Answer: d. All of the above

Which of the following is a type of error in statistical analysis? a. Type I error b. Type II error c. Both a and b d. Neither a nor b

Answer: c. Both a and b

Which of the following is a measure of effect size? a. Confidence interval b. P-value c. Cohen's d d. Power

Answer: c. Cohen's