research methods Flashcards
what are lab experiments?
a hypothesis is tested in a controlled artifical condition
what are controlled groups?
characteristics of a group stays the same
what are experimental groups?
characteristics of the group are changed
what are the advantage of lab experiments?
- casual relationship - establish cause and effect relationship and see why people act in certain ways
- replication - other researchers should be able to repeat and obtain the same results from the experiment
what are the 4 disadvantage to lab experiments?
- the hawthorne effect - people change their behaviour because they know they are being experimented on
- not representative - small scale
- experimenter bias - people may tend to act in terms of how they thing others expect
- ethical problems - consent has to be gained in particular with vulnerable groups
what are the **disadvantage **to lab experiments in contexts to education?
- ethical problems - psychological harm and lack on informed consent
- narrow focus - examining only one specific aspect of teacher expectation
- pracical issue - many variables may affect teachers expectation
what are field experiments?
conducted in normal social situations
what are the advantage of field experiments?
- reduce hawthorne effect
- valid
- easy to repeat
what are the disadvantages of field experiments?
- ethical issues - psychological harm
- practical issue - difficult to access
- **not reliable **- variables not controlled
- not representative - one school
what are postal questions?
postal questions are questionnaires sent to the house of the respondent
what is face to face interviews?
face to face interviews is whent he researcher ask a standardised set of questions from a questionnaire for the respondent to respond to
why does positivist favour questionnaires?
- representative and reliable
- anonymous
- time and cost effective
- test a hypothesis
why does interpretivists reject questionnaire?
- not valid + misunderstand meaning
- no verstehen
- not subjective
- low response rate
what is sampling?
sample selected from a sample frame
what is a hypothesis?
prediction about a topic - Through research, the hypothesis is tested and either proven or refuted.
what are focus groups?
small semi structured observation - conversations that can be observed
what are the advantage of focus groups?
- in depth data
- valid
- written
what are the disadvantage of focus groups?
- too small
- hawthorne effect
- not representative
what is a pilot study?
a trial run before the real research is carried out