primary research methods Flashcards
lab experiments strengths - theoretical
highly reliable
experimenter can control the conditions and specify the steps used to others can replicate the study
produces quantitative data so can be easily compared
lacks extrnal validity
lab experiments limitations - theoretical
lack internal validity
findings may not represent behaviour in the world
the artificiality may encourage the Hawthorne effect - where the subjects react to being studies = invalid results
lab experiments - practical limitations
individuals are complex so its difficult to exactly match the control and experimental group
lab experiments - ethical limitations
informed consent
researcher needs to gain participants agreement to take part - having first explained to them the purpose of experiment
can be self-defeating as if they know purpose may act differently
lab experiment key features AO1 - control
controlled experiment in an artificial environment where variables can be controlled
experimenter takes a set of identical subjects and divides them into 2 groups
experimental - are exposed to independent variable
control group - aren’t exposed
lab experiment key features AO1 - cause and effect
the condition in both groups is measure before and after the experiment to identify whether independent variable had an effect
lab experiment 2 key features AO1
control
cause and effect
lab experiments limitations - ethical
issues of consent
they involve carrying out an experiment on subjects without their knowledge or consent
field experiment key features AO1
takes place in the subjects natural surrounding
those involved don’t know they’re being studied
field experiment strengths - theoretical
less artificial than lab experiments
they have more ecological validity
field experiment limitations - theoretical
less control over variables, so not as scientific and cannot be sure we’ve identified true cause
field experiments limitations - ethical
do not gain consent of those involved as this would change behaviour
structured interviews Ao1
each interview conducted in same standardised way
close ended questions
produce quantitative data
questions read out and answers recorded by trained interviewer
structured interviews strengths - theoretical
reliable because they use a fixed set of questions so it can be easily repeated by another interviewer
positivists like
get quantitative data = easy to compare
structured interviews strength - practical
relatively quick and cheap to conduct = interviewer can get a large sample
suitable for gathering straight forward information
structured interviews weakness - practical
employing interviewers incurs a cost
not useful for many situations (e.g sensitive subjective topics) -
structured interview weakness - ethical
not useful for many situations (e.g sensitive subjective topics) - PRACTICAL AND ETHICAL
structured interview weakness - theoretical
use close ended questions - forces interview to choose from a set of answers
if none of them fit it all affect the validity
preset questions give the interviewer no opportunity to follow up questions and gain a b better understanding - interpretivists:(
unstructured interviews
ask open-ended questions - no fixed set of questions
qualitative data - interpretivists :)
free flowing so similar to a natural conversation
unstructured interviews strengths - theoretical
feminist Oakley
takes woman’s side and aims to give a voice to their experience and to free them form patriarchal oppression
as they’re more involved in their lives and experience - not detached