the experimental method

Question 1

what is the aim

Answer 1

the intent of the study

Question 2

what is the hypothesis

Answer 2

statement about relationship between variables

Question 3

whats the independant variable and the dependant variable

Answer 3

whats being manipulated and whats being measured

Question 4

whats an extraneous variable

Answer 4

things that dont change but impact the dependant variable
we have no control over them

Question 5

what is a 1 tailed hypothesis

Answer 5

a directional hypothesis

Question 6

what is external validity

Answer 6

whether it is generalisable

Question 7

what is internal validity

Answer 7

whether the outcome is due to the experiment

Question 8

what is mundane realism

Answer 8

it mirrors the real world
aka has high ecological validity

Question 9

what is a strength and weakness of repeated measures

Answer 9

strength is that theres not many participants
weakness is that there can be order effects eg fatigue

Question 10

improvement of repeated measures

Answer 10

do the conditions in a different order to prevent order effects

Question 11

strength and weakness of independant groups

Answer 11

s is that no order effects
w is that theres lots or participants

Question 12

whats an improvement of independant groups design

Answer 12

have random allocation of participants to reduce participant variables

Question 13

strength of matched pairs and weakness

Answer 13

s is theres no order effects
w is that its time consuming

Question 14

improvement of matched pairs design

Answer 14

do a pilot study

Question 15

how to reduce demand characteristics

Answer 15

do a single blind or double blind design