research methods Flashcards
what is an aim
A Statement of what the reseacher intends to find
what is an hypothesis
prediction to an experiment
what is a directional hypothesis ?
one tailed - states which specific direction the results will go in
‘ there will be n increase / decreases , faster , slower
what is non directional hyothesis ?
-two tailed
less clear of the direction the results go in
‘ there will be a difference ‘
what is null hypothesis ?
predicts no difference or relationship
what operationalistaion ?
- specific and measurable
what are extraneous variables ?
variables that could affect the DV if not controlled
what are different types of Ev’s
1.Participant variables
experiences , prior knowledge , age , gender
2 . situational variables
time , temp, nosiy
3. experimenter variables
- tone of voice the experimenter uses , body lang , bias
4. investigator effects
5.
how do we control EV’S
Using STANDARDISATION - keeping many aspects of the study the same for particiapants across groups ., same instruction , time,
what is the confounding variables ?
changes in dependent variable
what are different types of experiments ?
lab experiement
. field experiement
natural expereiments
quasi experiements
