Research Methods Flashcards
What is empiricism?
Information gained through direct observation or experiment.
What is objectivity?
Observations and experiments should be unaffected by bias (such as researcher expectations).
What is replicability?
It is important that research can be repeated and similar results obtained, this adds to the reliability of the study.
What does rational mean?
logical basis for a course of action or belief.
What is hypothesis testing?
Using the scientific process to test a hypothesis under controlled conditions.
What is theory construction?
Validity of a theory is tested. Observations help to construct theories to understand the phenomena around us.
What is induction?
Involves reasoning from the particular to the general. FOr example, a scientist may observe instances of a natural phenomenon and come up with a general law or theory.
What is deduction?
Involves reasoning from the general to the particular. Starts with a theory and looking for instances to confirm this.
What is an example of induction?
Newton’s Laws are an example of this. He observed the behaviour of physical objects and produced laws that made sense of what he observed
What is an example of deduction?
Darwin’s theory of evolution is an example of this. He formulated a theory and set out to test its propositions by observing animals in nature. He specifically sought to collect data to prove his theory.
What is the scientific process of induction?
- Observations.
- Testable hypothesis
- Conduct a study to test the hypothesis
- Draw conclusions
(repeat either of these steps as necessary) - Propose theory.
What is the scientific process of deduction?
- Observations.
- Propose theory
- Testable hypothesis
- Conduct a study to test the hypothesis.
(repeat either of these steps as necessary) - Draw conclusions
What is the scientific model based on?
Upon a deduction system.
What is the scientific model?
- Observe something about the world
- Come up with a theory about the world
- From the theory, develop a testable hypothesis
- Test the hypothesis; observe results
- Use results to modify theory…. and so on
What is the falsification principle?
Instead of looking for examples to confirm a theory the only way to prove a theory is correct is to seek disproof. The only way to prove a theory correct was actually to seek disproof.
Who developed the falsification principle?
Karl Popper
What are the stages of Karl Poppers hypothetio-deductive method?
- Null hypothesis “Not all swans are white”
- Observation “Look for swans and record sightings”
- “No black swans were sighted”
- If there is no proof for the null, then you reject it.
- Create an alternative hypothesis
- Accept the alternative hypothesis with reasonable certainty.
Is the scientific method appropriate for psychology?
- The scientific method is reductionist and deterministic, by attempting to explain complex human behaviour in simplistic terms.
- Psychological treatments of mental health problems have had modest success; therefore the goals of science are not always appropriate in psychology.
- Science takes the nomothetic approach, whilst psychologists argue the idiographic approach is more suitable when treating patients.
Can psychology claim to be a science?
- Subjective; e.g. data collected using interviews, questionnaires, content analysis, or observation are less objective than experiments, but triangulation can make this method more objective and valid
- Experimenter bias and demand characteristics compromise validity.
What are the goals of science?
- Investigate and understand the natural world.
- Explain events in the natural world.
- Use those explanations to make predictions.
What is the nomothetic approach?
Looking to make generalisations about people and find similarities
What is the idiographic approach?
A focus on the individual .
What is peer review?
Peer review is the assessment of research by others who are experts in the same field (peers). This is usually done before research is published.
What are the advantages of peer review?
- Ensures research published is of high quality
- Checks the validity
- Judges the credibility of the research and assesses the quality and appropriateness of the design and methodology
- Peers assess how original the work is
- Can recommend whether the work needs to be rejected or revised
- Ensures well=respected journals have integrity. Prevents fault dates.
- Necessary where applying for funding
- Online journals can form the basis of peer review