Principles of Evidence-based Practice, and Ethics Flashcards
What is design bias?
The failure to account for inherent biases
What is selection/sampling bias?
Non-representative sample
What is measurement bias?
An inaccurate or poorly designed measure
What is response bias?
Where participants consciously or subconsciously respond according to what the experiment ‘wants’ or ‘expects to find’
What is performance bias?
Where participants or researchers act differently because of allocation in control/experimental group
What is statistical significance?
Statistical Significance indicates the reliability of the study results
What is clinical significance?
Clinical significance reflects its impact on clinical practice, and should indicate the following: Extent of change, Whether change makes a real difference, Duration of treatment effects, Consumer acceptability, Cost-effectiveness, Ease of implementation
What are small, moderate, and large effect size standards?
An effect size of 0.2 indicates a SMALL statistical and clinical difference between two groups, An effect size of 0.5 indicates a MODERATE statistical and clinical difference between two groups, An effect size of 0.8 indicates a LARGE statistical and clinical difference between two groups
How is effect size calcualted?
Effect size standards provide an indication of the size of treatment effects. Effect sizes are calculated by taking the mean difference between two treatments and dividing by their pooled variance
What is a CONSORT protocol?
A CONSORT (Consolidated Standards of Reporting Trials) statement is a protocol (developed and published first in 1996) to improve the quality of reporting Randomised Controlled Trials. The CONSORT protocol comprises a checklist and a flow diagram that authors can use for reporting a Randomised Controlled Trial
What is a PRISMA protocol?
A PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) is a checklist for authors to use to uphold research practices
What is the value of a qual study?
Qualitative research can provide insights into a problem via rich data from individuals’ experiences. Qualitative research can supplement quantitative studies and help gain a comprehensive understanding of underlying reasoning, opinions, and motivations for behaviours/treatments/effects (E.g. can help understand patients’ experiences with a medication and their experience of any negative side effects)
What does treatment efficacy focus on?
Efficacy studies emphasise the internal validity of experimental design. They use manuals to standardise treatment delivery, train and monitor therapists (who work in experimental studies on clinical interventions), control number of treatment sessions, and use random assignment to conditions, as well as blinding procedures
What does treatment effectiveness focus on?
Effectiveness studies emphasise the external validity of an intervention (assess if treatment is beneficial in a clinical setting). E.g. therapy is not manualised, number of sessions vary among client participants
What is utilitarianism/consequentialism?
Ideology where the consequences of actions determine which actions are right or wrong - the idea of the greatest good for the greatest number of people