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How is descriptive data valuable to the nurse researcher? Module 5 Quiz complete test with correct answers

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Module 5 Quiz Question 1 0.2 / 0.2 pts How is descriptive data valuable to the nurse researcher? Question 2 0.2 / 0.2 pts Which of the following would be an example of descriptive data... often cited in professional journals? Question 3 0.2 / 0.2 pts What is not an aspect of grading the strength of the evidence? Question 4 0.2 / 0.2 pts The percentage of nurses holding the various degrees would be an example of which type of statistics? Question 5 0.2 / 0.2 pts Nurse educators are reviewing scores from an examination to determine which score occured most frequently. Which term represents the most frequent score in a frequency distribution? ed.) Question 6 0.2 / 0.2 pts What is indicated by a "correlation"? Question 7 0.2 / 0.2 pts In a study of nurses’ willingness to care for patients with AIDS, it was found that the greater the nurses’ spirituality, the greater the willingness to provide care. Which type of correlation does this finding represent? Question 8 0.2 / 0.2 pts Calculate the mean of the following data. Scores (n=10) on a questionnaire were: 22, 14, 36, 8, 12, 36, 24, 16, 36, 6. Question 9 0.2 / 0.2 pts In a research study women with metastatic breast cancer responded to the Symptom Distress Scale and the Profile of Mood States. A correlation coefficient was reported: r = 0.45, p = 0.04. How would you describe the magnitude of this correlation? Question 10 0.2 / 0.2 pts Which parametric statistical test compares the difference between the mean scores on a mental status questionnaire for patients with dementia (Group 1) and patients with confusion from dehydration (Group 2)? Question 11 0.2 / 0.2 pts Nonparametric tests of significance are used when data are which levels of measurement? Question 12 0.2 / 0.2 pts How should a research consumer evaluate the following statement in a research report? “Research hypothesis was there is a significant positive relationship between reports of sleep adequacy and the performance on a driving test. A positive correlation was found between the variables of self-reported sleep adequacy and performance on the driving simulator (r = 0.21, p = .37), although the correlation did not reach statistical significance.” Question 13 0.2 / 0.2 pts The following is a statistical test result in a research study, (t = -2.944, p = .30) and the significance level set for the study is p < .05. Is the result statistically significant? Question 14 0.2 / 0.2 pts A researcher is attempting to reduce error and avoid a Type I Error so nurses can have confidence in inferring findings to another practice setting. What occurs in a Type I Error? Question 15 0.2 / 0.2 pts A researcher compared the difference between gender and smoking between two independent groups. Nonprobability sampling was used, variables were at a nominal level, and there was not a normal distribution. Which of the following statistical processes would be most appropriate? IncorrectQuestion 16 0 / 0.2 pts The mean level of satisfaction was measured in three independent comparison groups, nursing students attending a HURST review prior to NCLEX, nursing students attending a HESI review prior to NCLEX, and students attending a Kaplan review prior to NCLEX. Which of the following statistical tests would be most appropriate? Question 17 0.2 / 0.2 pts A research reports the use of X2 to compare the impact of rocking infants or use of pacifier to reduce the bouts of crying with a heelstick. What statistical test is inferred with this symbol? IncorrectQuestion 18 0 / 0.2 pts An author of a research study reports a p value of <.05 in a research article. Select the best interpretation of the p value. Question 19 0.2 / 0.2 pts In a normal distribution of data, what percentage of the scores would fall within 3 SD’s (standard deviations) of the mean? Question 20 0.2 / 0.2 pts Type II Error is more serious than a Type I Error. Question 21 0.2 / 0.2 pts The researcher failed to obtain statistically significant results and accepted the null hypothesis even though a relationship exists in the real world. Select the best description of this scenario. Question 22 0.2 / 0.2 pts When grouping data for frequency distributions, which rule is most important to remember? Question 23 0.2 / 0.2 pts Calculate the median of the following subjects' scores: Beck Depression Scale Question 24 0.2 / 0.2 pts Select the distribution that best illustrates the following criteria: • Mean is greater than the median and mode; • Longer tail is to the right; and • Caused by an outlier. Question 25 0.2 / 0.2 pts Which of the following types of studies are nurses most likely to appraise, are often seen as the gold-standard, and are important to the advancement of EBP? [Show More]

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