Loftus and Palmer- Evaluate Methedology A03

Question 1

What is the methodology that can be evaluated in Loftus and Palmer’s research?

Answer 1

2 lab experiments
Independent meaures design
Questionnaire to collect qualitative data

Question 2

Paragraph one (STRENGTH) of lab

Answer 2

P- Lab experiments- high levels of control

E.g- All American students (45 in exp 1 and 150 in exp 2) took part in same conditions
- same 7 video clips in exp 1 (5-30 seconds) and given same instruction to estimate speed in MPH
- Answer critical q- “Did you see any broken glass?” In exp 2

E- Standardised procedures
- same experience
- reliable

Question 3

Paragraph 2- (WEAKNESS) of lab

Answer 3

P- Lacks ecological validity due to artificial environment

E.g- students watched videos of car collisions in lab

E -not natural setting which influences speed estimates due to not experiencing collision in real life
- speed estimates lack EV- in real life stress would impact these estimates

Question 4

Paragraph 3- (STRENGTH) Independent measures design

Answer 4

P- strength using independent measures

E.g- exp 1- ppts only asked critical q using one of the 5 verbs (smashed, hit, collided, bumped, contacted)
- exp 2- only exposed to verbs smashed and hit in experimental groups
- only exposed to 1 verb, take part in 1 condition

E- Cant work out aim of reasearch being effect of leading questions- speed estimates in MPH will be more valid