NURS 5366 week 3 MODULE 3 QUIZ.

NURS 5366 week 3 MODULE 3 QUIZ. Question 1 To improve consistency in data collection the researcher should: Answers : a. recruit subjects who are of the same gender and age group. b. ensure that the same member of the research team distributes blood pressure logs to subjects. c. request that subjects record their blood pressure at the same time each day. Response Feedback: p.508  Question 2 A researcher evaluates scores of a paper and pencil instrument with variables at the interval level of data using the Cronbach’s alpha coefficient statistical procedure. This is a test of: Answers : a. internal consistency reliability b. interrater reliability c. test-retest reliability d. alternate forms reliability Response Feedback: page 373  Question 3 Which of the following is NOT a physiological measures? Answers : a. Score on the Mini Mental Status Exam b. Serum sodium c. A subject’s report of episodes of tachycardia per day d. Use of a tuning fork to measure bone conduction hearing loss Response Feedback: Physiological measures include two categories, biophysical and biochemical measures. For example, biophysical measures might include the use of the stethoscope and sphygmomanometer to measure blood pressure and a biochemical measure might include the laboratory value for total cholesterol. Self-report has been used effectively to obtain physiological information and may be particularly useful when the subjects are not in closely monitored settings such as hospitals, clinics, or research facilities. For some variables, self-report may be the only means of obtaining the information. Such may be the case when study participants experience a physiological phenomenon that cannot be observed or measured by others. p. 394  Question 4 Why are convenience samples used so frequently in nursing research, when a random sample would allow for greater generalizability? Answers : a. Cluster sampling is is inexpensive and time consuming. b. Ordered lists of of all member of a patient populations are often available. c. Nurses are limited to the populations they serve; many populations are small and difficult to access. d. There is less opportunity for systematic bias. Response Feedback: p. 343  Question 5 A researcher develops a 7 point Likert scale to evaluate feelings of well being in patients who are undergoing chemotherapy. The researcher administers this measure to other, similar patients in several medical centers. This is done in order to: Answers : a. increase interrater reliability b. strengthen the operational definition of the constructs c. improve the test-retest reliability d. Decrease mono-operation bias Response Feedback: page 370  Question 6 The quantitative researcher collects many pieces of quantitative data as words, not numbers. Prior to statistical analysis, all of the data pieces must be coded. What does this mean? Answers : a. The data are transformed into numerals corresponding to words, such as 0 —no college degree, 1—bachelor’s degree, 2—master’s degree, 3—PhD or EdD. b. The essence of each word is noted; later, these essences emerge as themes. c. The data regarding protected data are transformed to code names; a list is made and kept in a secure location. d. The data are typed into a computer, and the computer is instructed to transform the words into binary values, using only 0 and 1, by adding up the numbers of each letter in the alphabet. Response Feedback: Coding is the process of transforming language data into numerical symbols that can be entered easily into the computer. For example, variables such as race, gender, ethnicity, and diagnoses can be categorized and given numerical labels. For gender, the male category could be identified by a “1” and the female category by a “2.” The coding categories developed for the research must be both mutually exclusive and mutually exhaustive so, with respect to the latter, inclusion of “3”—decline to state and “4”—none of the above might be useful.