Module 1 - Introduction to Research & Evaluation Flashcards
Research Paradigm
Philosophical model/framework that the research is based on, which guides the aim, research questions, measurements, data collection and analysis methods
Components of a research paradigm
Ontology: study of existence, provides world view that guides study
Epistemiology: theoretical study of knowledge, provides focus (relationship between researcher and area of study)
Methodology: framework for conducting the study
3 philosophical paradigms
Positivism
Interpretivism
Critical approach
Positivism
- Quantitative
- Provides explanation by traditional scientific method = observation, prediction, tetsing causal relationships using procedure to prepare for analysis
- Characterised by determinism/reductionism (caused by predisposing factors), objectivity, and deductive reasoning (start from theory to focus)
Examples: cross sectional, propective cohort, longitudinal, non-random, randomised control, single or double blind
Interpretivism
- Qualitative
- Description by describing and exploring meanings within a social or practical context
- Characterised by the idea that reality is obtained through social contructs, meaning is contructed through researcher-participant dialogue, and by inductive reasoning (concept derived by observation)
Example: phenomenology, grounded theory, ethnography
Critical approach
- Qualitative
- Focus on society and culture to explore and critique power structures and dynamics
- Goal to empower participant to challenge and change social structures
- Uses obervation & interviewing
Examples: emancipatory (benefit to disadvantaged), action, feminist
Data triangulation
Application of several research methods/researchers to cross check and validate results
Advantages and disadvantages of qualitative
Advantages
* Low cost
* account for behavioural complexity and provide context
* Able to clarify responses
Disadvantages
* Researcher bias esp when present
* Subjects may lack credibility & share characteristics
* Not always representative of wider population
* Not always clear what is being looked for
* Take time to disclose
Advantages and disadvantages of quantitative
Advantages
* clear outcomes
* quick analysis
* Application to other populations
* High reliability and validity
* Anonymity
Disadvantages
* Researcher bias
* Limited ability to probe
* High cost
Non-experimental design
No researcher manipulation
Adv:Used if relationships between variables are unknown (measure of disease prevalence
Dis: shallow, doesnt allow probe or focusing
Types:
* correlational (compare indicators of health across populations)
* cross sectional (surveys to provide snapshot of time - prevalence)
* case report (analyse factors associated with outcome) - retrospective
* case control (relationship of exposure with outcome) - retrospective
* cohort (longitudinal over time) - prospective
Experimental design
Researcher manipulation of variable, condition or treatment to isolate and better observe dependent variable
Adv: more control, less confounding factors, builds on causal knowledge
Dis: more prep and lit review requires, requires review of variable influence, costly
Types: randomised control and community trials
Importance of research to nursing
- Use evidence based knowledge to make better clinical decisions
- Improve delivery of patient care
- Generated knowledge builds credibility
- Maximise profits
- Provide accountability
Emic vs etic aproach
In qualitative methods
Emic: insiders POV
Etic: outsiders POV