CPH Sample Exam Questions AND ANSWERS ( WITH COMPLETE SOLUTIONS)

Which one of the following items does not represent the value of biostatistics in the assessment of health problems of the population and determine their extent? (A) Finding patterns in the collected data (B) Summarizing and presenting the information to best describe the target population (C) Deciding what information to gather to help identify the health problems (D) Accounting for possible inaccuracies in responses and measurements correct answer: (D) Accounting for possible inaccuracies in responses and measurements A biostatistician's responsibility within a collaborating research team is to aid in the research design, analysis, and interpretation of the data. (A), (B), and (C) all describe tasks that would fall within a biostatistician's expertise area. A biostatistician would not be able to account for possible inaccuracies in the data. This is because a biostatistician only has access to the information contained within the data at hand and does not have information concerning the underlying reasoning for inaccuracies in the data. The health department is committed to protecting and promoting the health of the country's residents. Which of the following components of a strategic plan does this statement represent? A. objective B. vision C. mission D. goal correct answer: C. mission Reduce the number of teenagers who begin to smoke. Which of the following components of a strategic plan does this statement represent? A. goal B. mission C. objective D. vision correct answer: A. goal The new director of a county health department is getting acquainted with her staff. After several weeks of observing how her two associate directors supervise their subordinates, she notes striking differences in their management styles. One associate director manages employees by assuming that they are highly motivated. He tells members of his staff that they can time-shift their work hours to accommodate their family schedules as long as they get their work done. This director's approach to management exemplifies which of the following leadership theories? A. Contingency theory B. House's path goal theory C. McGregor's theory Y D. Theory Z correct answer: C. McGregor's theory Y The other associate director assumes that employees find no satisfaction in their work and are exclusively motivated by their salaries. This associate director's approach to management exemplifies which of the following leadership theories? A. McGregor's theory B. Contingency theory C. Theory Z D. House's path goal therapy correct answer: A. McGregor's theory The director wants to adopt a management strategy that will meet the needs of all personnel in her department, including the two associate directors and their diverse staffs and responsibilities. The most appropriate leadership style for this director is one informed by which of the following theories? A. Theory Z B. McGregor's theory C. House's path to goal therapy D. Contingency therapy correct answer: D. Contingency therapy A community-based study of a program to increase physical activity is conducted, and the findings are evaluated. A small p-value with an estimate is reported. Which of the following is the best interpretation of this result? A. It is likely the estimate differs from the true value because of bias. B. It is likely the estimate differs randomly and systematically from the norm. C. It is unlikely the estimate differs from the average because of chance. D. It is unlikely the estimate differs from the null value because of random variability correct answer: D. It is unlikely the estimate differs from the null value because of random variability A pilot study is conducted to examine whether a new drug effectively decreases cholesterol levels over a 6-week period. Twelve participants are enrolled, and serum cholesterol levels are measured before and after the 6-week treatment period. Investigators plan to use a paired t-test to examine whether the drug was effe