experiments Flashcards
(29 cards)
important studies
milgram, bandura
laboratory experiments
controlled environment to test hypotheses
experimental group - where the independent variable is changed
control group - no change to independent variable
practical strengths of lab experiments
cost / time - can be done quite quickly if facilities are readily available and at little cost
practical limitations of lab experiments
control of variables - society is complex - cant control all variables
snapshot - no historical dimension
small sample
ethical strength of lab studies
beneficial for society - provide outcomes useful to society
debriefing - negate some issues of lack of informed consent
ethical limitation of lab experiments
informed consent - some people may not understand the nature of the experiment
harm - can cause distress
theoretical strengths of lab experiments
reliability - can be repeated and statistical analysis checked
detachment
objectivity
cause and effect
positivism
theoretical limitations of lab experiments
validity - part of experiment - hawthorne effect
ecological validity
representativeness - small scale
interpretivism
positivist perspective on lab experiments
favour lab experiments - causal laws to be established
- manipulation of independent variable and measuring effect on dependent variable
objective - valid
interpretivist perspective on lab experiments
do not produce valid, accurate data - artificial environment and do not encourage natural behaviour
cannot reveal how interactions occur between people and only produce a snap shot
feminist perspective on lab experiments
create an unequal power relationship between dominant research and compliant participant
often male scientist - ignore female experience
field experiments
take place in subject’s natural environment
Rosenthal and Jacobson - pygmalion in classroom
practical strengths of field experiments
access - study groups who would not grant access in controlled setting- Rosenhan - students admitted to psychiatric hospitals
practical limitations of field experiments
access - small number of participants due to opportunistic sampling
ethical strengths of field experiments
useful for society - field experiments tell sociologists about how individuals behave
ethical limitations of field experiments
informed consent - often deceived about the true nature of the research or unaware part of experiment - covert study
theoretical strengths of field experiments
validity - research takes place in wider society so people should behave more natural manner
validity - true nature of research is often kept covert - less impact of expectancy effect and hawthorne effect
theoretical limitation of field experiments
validity - if know part of experiment - hawthorne effect
control of variables - harder to control variables in the field
reliability - difficult to accurately replicate
positivist perspectives of field experiments
lack in validity - harder to control extraneous variables that may affect participant behaviour separately from independent variable
reduces objectivity of field experiments and minimises accuracy of patterns of causation
interpretivists perspectives on field experiments
favour over lab experiments
involve observations and analysis of more natural behaviour
argue the structured nature of field experiments and resulting quantitative data limits validity
does say why for behaviour - triangulation
the comparative method
cause and effect relationships
groups identified by sociologist for being similar is all aspects bar one variable we are interested in then compare groups
practical strengths of comparative method
fewer responses needed - reducing need for expenses and training
practical limitation of comparative method
control over variables - harder to accurately control all relevant variables so limited validity and research may not be relevant
ethical strength of comparative method
ethical issues - should avoid issues of causing harm and gaining informed consent