nuisance variables

Question 1

what are demand characteristics

Answer 1

participants are influenced by clues indicating the purpose of the experiment
please-u-effect
screw-u-effect
social desirability

Question 2

what is the please-you-effect

Answer 2

participants work of the purpose of the study and change their behaviour to get the results the researcher wants

Question 3

what is the screw-you-effect

Answer 3

participants work of the purpose of the study and change their behaviour and underperform in the study to sabotage it

Question 4

what is social desirability

Answer 4

ptts want to portray themselves in a positive light so may change their answers or behaviour

Question 5

what are investigator effects

Answer 5

researchers have expectations about the outcome of the study and therefore may influence the participants in their interactions with them

Question 6

examples of investigator effects

Answer 6

• facial expressions and head nods
• selection of ppts

Question 7

what are participant variables

Answer 7

the different individual characteristics of participants

Question 8

whats the problem with participant variables

Answer 8

considered extraneous variables as it could affect the results

Question 9

what are order effects

Answer 9

differences in ppts performance as a result of the order in which they complete the conditions

Question 10

examples of order effects

Answer 10

practise
boredom
fatigue