Week 1 Flashcards
Steps for using EBP in clinical practise
1 - converting the need for information into an answerable question
2 - tracking down the best evidence with which to answer that question
3 - critically appraising that evidence for its validity, impact, applicability
4 - integrating the critics appraisal with our clinical expertise and with our patient’s unique biology, values and circumstances
5 - evaluating our effectiveness and efficiency in executing steps 1-4 and seeking ways to improve
5 A’s strategy
Ask - a clinical question
Acquire - information that may answer the question
Appraise - the evidence for its quality and applicability
Apply - the evidence in the care of the patient
Assess whether the application resulted in the expected outcomes
Hierarchical ranking system
Systematic reviews
RCTs
Controlled trials without randomisation
Cohort studies
Ontology
The question of whether or not there is a single objective reality
Adopt objective reality = quantitative
Reject objective reality = qualitative
Epistemology
The nature of knowledge and how knowledge is obtained
Constructivism, positivism, pragmatism
Qualitative methods
Based on the belief that there is not a single objective reality and it is impossible to carry out research for understanding people’s perceptions and experiences without being influenced by our own subjective
This belief is called constructivism or interpretivism
Quantitative methods
Based on the belief that there is an objective reality and this reality can be accessed by research. This belief is known as positivism
The aim of positivist enquiry is to explain, predict and control that reality, by using standardised procedures to think, observe and record experiences/phenomena
Pragmatism
Advocates that knowledge is based on both the reality of the world we live in and our own experiences
Combines features of constructivism and positivism, opening the door to multiple methods, assumptions, forms of data collection and analysis
Pragmatism is the foundation of the mixed methods approach
Advantages of qualitative research
Flexibility in thinking : researches less likely to get stuck in conventional ways of thinking
Flexibility in research process: researches can adjust their approach in interpreting the data
Rich description: provide rich, subjective experience
Compensation: used to investigate areas where quantitative methods are inappropriate
Validity: high on internal validity - draws on understanding of research participant
Disadvantages of Qualitative research
Observer bias: researchers construct the categories
Lack of consensus: qualitative researchers disagree among themselves over methods
Lack of focus: research questions can sometimes be too broad
Lack of generalisability: research undertaken with small number of participants
Poor replication
Cost: in terms of time
Advantages of quantitative research
Measurement: being able to demonstrate quantity is a powerful tool in producing data
Rigour: methods adopted by quantitative researchers are transparent
Internal validity: explain phenomena with independent and dependent variables explaining cause and effect
Generalisability: finding of a study can be generalised to a large population
Replicability: quantitative research studies should be able to be replicated by others
Disadvantages of quantitative method
Social world is different to natural world
Quantitative research is made under controlled circumstances - artificial
Surveys often only measure responses at a single point in time
Less effective at determining why people act as they do
Ethical Conduct in research
Research merit and integrity
Justice
Beneficence
Respect
Research merit and integrity
Research activities need to be justifiable by its potential benefit
Research designed or developed using methods appropriate for achieving aims of the proposal and based on a thorough study of the current literature and previous studies
Ensure respect for participants is not compromised by aims, how ti is carried out or by results
Conducted by persons with experimental, qualifications and competence - facilities appropriate too
Justice
Process of recruiting participants is fair
No unfair burden of participation in research on particular groups
Fair distribution of benefits of participation in research
No exploitation of participants in the conduct of research
Fair access to the benefits of research