Non-Experimental Approaches
Figure 18.2 Non-linear correlation. Correlation and prediction One of the interesting (and potentially powerful) features of correlational designs is that it is possible to move beyond describing the relationship between…
Searching the Literature
Figure 4.2 Specificity of search questions. The amount of information which will be gathered is affected by the focus of the review, but also by the breadth of sources of…
A Pragmatic Approach to Qualitative Data Analysis
Beautiful 340Artistic 239 Once such a listing has been obtained, it is then possible to exclude non-lexical words, such as ‘the’, ‘to’, ‘that’ and so on. What is left is…
Getting Research into Practice
Clinical questions are derived from the scoping exercise and are similar in form to the questions that guide systematic reviews (see Chapter 4). The development of recommendations is derived from…
Critical Evaluation of Research Reports
validated and/or adequately described?appropriate to the research question? Procedure – Is it appropriate to the question:clearly described?accounts for bias? Data analysis – Is a clear rationale provided?Does it permit an…
Evidence-Based Practice and Clinical Effectiveness
Criticisms of EBP Earlier in this chapter, we noted that some clinicians have felt EBP had the potential to erode their clinical autonomy and judgement, but that this has never…
Randomised Controlled Trials
html xmlns=”http://www.w3.org/1999/xhtml”> 17 Randomised Controlled Trials Key points A randomised controlled trial (RCT) is a type of experiment. RCTs involve randomisation, a control group and manipulation of the independent variable….
Cause and Effect, Hypothesis Testing and Estimation
html xmlns=”http://www.w3.org/1999/xhtml”> 14 Cause and Effect, Hypothesis Testing and Estimation Key points Assertions about cause and effect are probabilistic, not definitive. We make cause-effect predictions in daily life. Cause-effect predictions…
Sampling, Reliability and Validity Issues in Data Collection and Analysis
html xmlns=”http://www.w3.org/1999/xhtml”> 13 Sampling, Reliability and Validity Issues in Data Collection and Analysis Key points Random sampling decreases the likelihood that members of a sample are different from its population….
