experimental desigins

Question 1

repeated measures

Answer 1

same participants to complete both condition of experiment.
condition A do task with tv on
same participants week later does similar test without TV on

Question 2

limitation

Answer 2

can he order effect, eg participants may do better on second test because of practice or less anxious. or can guess purpose of experiment.
so researcher might use two different tests

Question 3

independent group design

Answer 3

different particpant for 2 different conditions. 2 different set of group
Group A does task wity TV ON (1 group)
group 2 does without TV
then comapre the two conditions

Question 4

lim

Answer 4

can’t control effect of participant variables. as group A might have better memory than groip B,
so research might randomly allocate participants to condition
eg put name in hat

Question 5

matched pairs

Answer 5

2 separate group in both conditions. decides on characterist, depends on study matched with key variables such as age and IQ.
the highest scoring 2 participant, 1 in each condition and keeps doing it with all participants scoring same IQ until list is made.

Question 6

lim

Answer 6

very time consuming and need more participants

Question 7

counterbalancing

Answer 7

used to overcome order effects when using repeated measures. ensures each conditions is tested first or second in equal amounts

Question 8

way1

Answer 8

AB OR BA
group 1: each participant does A then B
group 2: each particpant does B then A

Question 9

way2

Answer 9

ABBA
trail 1:conditionA (morning)
Trial2:conditonB(afternoon)
Trail3:conditionB(afternoon)
trail4:conditooA(morning)
participants take part in each condition twice