List the differences between narrative aggregated literature reviews and systematic reviews.

List the differences between narrative aggregated literature reviews and systematic reviews.

Nursing

Research Questions

QUESTION 1

List the differences between narrative aggregated literature reviews and systematic reviews

QUESTION 2

According to the Joanna Briggs Institute, what level of evidence would you ascribe to:

a) a randomised controlled trial

b) a cohort study

Explain why the levels of evidence are different.

QUESTION 3

a) Identify the appropriate measurement scale for each of the following:

Variable Measurement Scale

Annual birth rate

Body temperature

Education level

pH

Country of birth

Ranking of journals in a category according to impact factor

Presence or absence of infection

Age

b) If you were collecting data on the above variables, which might you measure on a different scale? Which other scale could you use? Identifyone advantage and one disadvantage of measuring the variable in this way.

QUESTION 4

A class of 30 students received the following marks (expressed as percentages) for their overall assessment.

Student Mark Student Mark Student Mark

Jessica 78 Amandeep 85 Mohammed 77

Jianxia 60 Louisa 60 Yaping 73

Mark 82 David 76 Tracey 73

Herlina 52 Rebecca 70 Abdul 85

James 35 Mavilde 88 Melanie 62

Emily 77 Elise 50 Robert 24

Ramon 64 Mishal 77 Nawal 77

Hawa 87 Caroline 62 Diana 52

Julia 50 Zara 80 Peter 40

Simon 76 Sunit 51 Wendy 84

a) Calculate:

i) The mean

ii) The median

iii) The mode

b) What inference can you make about the distribution of marks?

c) What would be the most appropriate measure of:

i) central tendency

ii) dispersion

d) Grades are allocated in the following way:

Fail = 0-49; Pass = 50-59; Credit = 60-69; Distinction = 70-79; High distinction = 80-100

Construct a frequency distribution of the students’ grades. You may present this in table or graphic form.

e) What measurement scale does this represent?

QUESTION 5

You purchase batteries for your kitchen clock. The batteries have a mean life of 820 hours, with a standard deviation of 30 hours.

a) The batteries run out after 715 hours. Would you be entitled to a refund? Why?

b) What if the battery died after 780 hours?

QUESTION 6

James works in a paediatric surgical ward, where the majority of children are admitted for elective surgery. He is concerned about the level of distress and anxiety children display on admission and the nursing staff, in conjunction with the Play Therapy department and child psychologists, develop a package to prepare pre-school children for their hospital experience. James wants to know whether this package will have an effect on children’s distress.

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