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Leading question
when a question is worded in a certain way to gain a desireable answer
Loftus and Palmer 1
45 USA students watched a car crash and asked a question with different verb. Estimated speed.
Smashed/hit/collided/bumped/contacted.
Findings:
SMASHED: highest speed.
Response bias: wording influenced how ppt decided to answer.
Loftus and Palmer 2
150 ppt, one group: smashed. one group: hit. One group: no verb.
Q: “did you see broken glass”
Substitution bias: wording of question altered memory.
Post event discussion
Gabbert et al: 60 adults 60 students shown crime in different perspectives.
Control group: no discussion.
co witness group: discussed
Findings:
71% of cowitness group had false information added (altered)
0% of control group reported something false.
Memory conformity/contamination
conformity: for social desirability.
contamination: memory altered and distorted by having new info added.
Limitations
witnesses rarely see a whole event unfold so artificial nature reduces generalisability.
Demand characteristics: ppt may want to be helpful and guess when asked question.
Strengths
Real world application: led to development of cognitive interview