Statistics exercises for chapter 21 and 45 (2 articles, 20 problems)

Sample question is as under:  (Detailed questions are in attached word file)

Exercises for Chapter 21

1. Why did researchers choose to include a placebo TENS group in this study?

2. In Table 1, which movement maneuver was least painful for control subjects in the low amplitude group? Provide a rationale for your answer.

3. Using data presented in Table 1, calculate the ES of TENS for the total sample subjects’ pain intensity during transfer. Show your calculations and round your answer to two decimal places. Was the result significant? Provide a rationale for your answer.

Statistics Exercise 45

EXERCISE 45 Questions

1. In Table 4, which two physical signs used by the parents to assess dehydration were the most sensitive? Provide a rationale for your answer.

2. In Table 4, which two physical signs used by the parents to assess dehydration were the most specific? Discuss the meaning of the specificity of these two physical signs.

3. In Table 4, for which physical signs of dehydration did the nurses have more true positives than the parents?

4. In Table 4, which physical signs of dehydration did the nurses have more true negatives than the parents?

5. In Table 4, what is the percentage of false negatives for dehydration if the parents reported Decreased tears? Please provide your calculations.