experimental design

Question 1

independent measures design

Answer 1

-different participants take part in each conditions

Question 2

repeated measures design

Answer 2

all participants take part in all conditions

Question 3

matched pairs design

Answer 3

-participants are matched with another participant
-one participant from each twin pair takes part in each condition

Question 4

independent variable

Answer 4

thing that the experimenter changes

Question 5

dependant variable

Answer 5

thing that the experimenter measures

Question 6

extraneous variable

Answer 6

any variable which may affect the results of the research

Question 7

order effects

Answer 7

in repeated measures can produce changes in performance conditions

Question 8

practice effect

Answer 8

participants’ performance improves because they experience the task more than once

Question 9

fatigue effect

Answer 9

the participants performance decline because they experience the task more than once
may be bored or tired

Question 10

confounding variable

Answer 10

when there is the possibility of uncontrolled factors influencing the behaviour

Question 11

operationalise

Answer 11

definition of variables so they acne be accurately manipulated, measured and replicated