independent groups

Question 1

strength: no order effects

Answer 1

ppts only take part in one condition, won’t get bored fatigued or better at the task, won’t have lasting effects from one condition to the other, unlike repeated measures

Question 2

strength: can be used when repeated measures is inappropriate

Answer 2

quasi experiments, each condition needs different ppts

Question 3

weakness: individual differences

Answer 3

may affect DV, separate groups of ppts in each condition so some may be better at the task, lowers internal validity

Question 4

weakness: more ppts needed

Answer 4

two different groups needed, repeated measures uses fewer ppts