1.2 Research methods Flashcards
Quantitative research
An approach to research aimed at studying the relationship between variables. Variables are expressed numerically and their relationships are explored through statistical analysis. Universal =(“big T” truth - applies to everyone).
“big T” truth
Universal, applies to everyone.
Qualitative
An approach to research based on the interpretation of qualitative data, not statistical analysis of numerical data. Local (“little T” truth - applies to specific cases).
“little T” truth
Local, applies to specific cases.
Research question
A broad or narrow question to be addressed by the research.
Theory
A set of interrelated assumptions and propositions used to define and/or explain a specific phenomenon or a set of phenomena.
Hypothesis
A testable proposition.
Method
A specific research procedure used to test the hypothesis.
Primary quantitative research methods
- Correlational
- Experimental
Correlational research
The study of naturally occurring relationships among variables. Associations indicate a relationship. They cannot necessarily tell us whether changing one variable will caused changes in the other.
Positive correlation
As one variable increases so does the other.
Negative correlation
As one variable increases the other decreases.
Considerations for questionnaire design
Nature of sample, order of questions, response options, wording of questions, validity and reliability measures.
Random sampling
Where everyone in the population of the study has an equal chance of being represented in the sample.
Systematic sampling
Where members are drawn from a population at fixed intervals.