Research Methods ! Flashcards
Objectivity
When an experiment or observation is uninfluenced by the opinion of the experimenter (unbiased measurement)
How might experimenters affect the results of their study?
Investigator effects (give cues), make conclusions with ethnocentric bias, pay more attention to behaviour that confirms hypothesis, be fraudulent with data.
How might the objectivity of measurement be improved?
inter-rater reliability check, gather quantitative data over qualitative, standardised procedure and scripts (establish behavioural categories), random/ representative sampling and random allocation to groups, peer review, treating all data as important, double blind procedure, replication.
Empiricism
The view that all concepts originate in experience and direct observation, rather then simply argument or belief.
Why are objectivity and empiricism important in science?
Allows for replicability to establish reliability, allows for falsification (in order to falsify, we have to empirically test), conclusions must be based on observable and measurable findings as opposed to beliefs and bias (important to establish internal validity)
What can be studied empirically in the biological approach?
Evolution (observations made throughout history and fossil evidence), Gene mapping, brain structure and activity (PET and fMRI scans)
What CANNOT be studied empirically in the biological approach?
Neurotransmitter levels in the synapse (scanning is not intricate enough to directly observe - inferences)
What can be studied empirically in the learning approach?
Classical and operant conditioning (behaviour that we can observe)
What CANNOT an be studied empirically in the learning approach?
Mediational processes - attention, retention, motivation not tangible
Who suggested the Hypothetico-Deductive Method?
Popper
A hypothesis is
A precise, testable statement about the expected outcomes of a piece of research, where variables have to be fully operationalised.
Why is hypothesis testing important in science?
Makes falsifiable (possible to test and support the null or alternative and thus confirm or deny the idea), makes more replicable (clear, testable, operationalised variables), makes more objective (doesn’t rely on induction or opinion, replicable method that others can check), allows us to check population validity (replicate on different groups)
Inductive reasoning
Open-ended and exploratory, begins with observations of events/trends/social processes
Deductive reasoning
Narrower and concerned with testing or confirming hypotheses
Paradigm shifts are when
A shift occurs in the scientific community from one established way of explaining/studying behaviour/ thought to a new way.