Power analysis is defined by Polit and Beck (2014) as, "a procedure for
estimating either the needed sample size for a study or the likelihood of
committing a Type II error", with a type II error being a false negative where
the researcher accepts the nul
Module 5 Question 2
2. Discuss the following questions from Resnick's article. (Resnick, Palmer,
Jenkins & Spellbring, 2000)
a. Identify the concepts being measured in this study.
The concepts measured in this study were exercise behavior in older adults,
Module 5 question 1:
What is reliability? What is validity when you are choosing a tool? Why are they so important when
choosing a measurement tool?
Reliability is the degree of consistency with which an instrument measures the attribute being
Discuss the following concepts relevant to
measurement: reliability and validity
Examine the common measurement
approaches used in nursing research
Critique the measurement section in a
For module 9 this week, our group was introduced to inferential statistics. Inferential statistics
help us to INFER, or draw conclusions about a study sample and interpret the results. It also shows us
the probability that our results are significant. We
Inferential statistics gives us a way to draw
conclusions about our study sample and the
population it represents. It helps to INFER or
draw conclusions, to interpret our results. It gives
us the probability that our results are sig
Quasi and True Experimental Research Designs I
Objectives: Parts A and B
1. Identify major research questions for quasi and
true experimental designs.
2. Understand related statistical concepts-variance,
dependent variable, independent variable, and
2. What is your interpretation of the study results? What else could be affecting sleep?
There seem to be several different layers of things going on that are causing sleep disturbances.
People with HF have physical symptoms which mimic sleep disturbances
Quasi and True Experimental designs: Read Marion et al., 2009 and Loiselle et al., 2009.
What is the research design for one of them?
Quasi-experimental, longitudinal study
What is the sampling method for one of them?
Convenience sampling was used in t
Critiquing Published Nursing Studies
1. Describe the basic guidelines that direct the conduct of a
2. Describe the critical thinking phases used in the quantitative
research critique process: comprehension, comparison,
Module 14 question 2
Choose ONE of the articles and discuss its trustworthiness, credibility, transferability, dependability, and
I chose the Fries, K. (2010) article describing unplanned cesarean births as experienced by African
Module 14 question 1
Grounded theory seeks to describe and understand the key social and psychological processes that occur
in a social setting. Grounded theory studies use constant comparison to develop and refine theoretically
relevant concepts and cate
Reliability concerns a measures accuracy. It is the consistency with which an instrument measures the attribute.
When related to quantitative studies, reliability is very important for assessing the quality. The three aspects are
stability, internal consi
A threat to internal validity that involves changes that occur naturally as a result as a result of the passage of time is called:
A threat to internal validity concerning the occurrence of events happeni