experiments

independent measures
different participants in each condition of the experiment. ADVANTAGE: no problem with order effects which may happen when participants take part in two or more experimental conditions.
1 of 7
repeated measures
every participant is exposed to each experimental condition, so in effects participants are used as their own control group
2 of 7
matched pairs
each group of participants is carefully matched on all the variables considered to be relevant to the experiment
3 of 7
null hypothesis
predicts that the results of an experiment can be explained by chance variation rather than by the manipulation of the independent variable. it predicts that the alternative hypothesis is not true
4 of 7
alternative hypothesis
often referred to as the experimental hypothesis, it predicts that something other than chance variation alone has played a part in producing the results obtained
5 of 7
directional hypothesis
predicts the direction in which results are expected to occur e.g. MORE words are recalled from the list when using rehearsal as a mnemonic technique than when no mnemonic technique is used
6 of 7
non- directional hypothesis
it does not predict the expected direction of outcome. e.g. there is a difference in the no. of words recalled from words list present with or without the presence of background music.
7 of 7

Other cards in this set

Card 2

Front

repeated measures

Back

every participant is exposed to each experimental condition, so in effects participants are used as their own control group

Card 3

Front

matched pairs

Back

Preview of the front of card 3

Card 4

Front

null hypothesis

Back

Preview of the front of card 4

Card 5

Front

alternative hypothesis

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Psychology resources:

See all Psychology resources »See all Research methods and techniques resources »