Other slides in this set

Slide 2

Preview of page 2

Here's a taster:

Eye-witness Testimony
Evidence supplied by people who witness a
specific event or crime, relying only on their
Statements often include descriptions of the
criminal (facial appearance and other identifiable
characteristics) and subsequent identification,
and details of the crime scene (e.g. the
sequence of events, time of day, and if others
witnessed the event, etc).
There is good evidence that eyewitness testimony
can be incorrect, because eyewitness memories
of events tend to be fragile and easily distorted…read more

Slide 3

Preview of page 3

Here's a taster:

Misleading Questions
Leading questions-
Questions that make it more likely that a
participant's schema will influence them to
give a desired answer.
After the fact information questions-
Questions which introduce new misleading
information after the incident has occurred.…read more

Slide 4

Preview of page 4

Here's a taster:

Research into leading
Loftus and Palmer (1974)
Smashed/contacted speed study
Aims- to investigate the effects of leading
questions and language on immediate recall
To test their hypothesis that eyewitness testimony (EWT) is fragile
and can easily be distorted. Loftus and Palmer aimed to show that
leading questions could distort EWT accounts via the cues provided
in the question. To test this hypothesis, Loftus and Palmer asked
people to estimate the speed of motor vehicles using different forms
of questions after they had observed a car accident. The estimation
of vehicle speed is something people are generally quite poor at and
so, therefore, they may be more open to suggestion by leading
questions.…read more

Slide 5

Preview of page 5

Here's a taster:

Research into leading
· 45 American students
· Participants shown film of a car accident
involving two cars.
· Each participant was asked questions about the
speed of the cars.
· The independent variable was the language
used in the questions.
· Verbs such as `smashed' `hit' `bumped' and
`contacted' were used.…read more

Slide 6

Preview of page 6

Here's a taster:

Research into leading
Loftus and Palmer found that estimated
speed was influenced by the verb used.
The verb implied information about the
speed, which systematically affected the
participants' memory of the accident.
Those who were asked the question
where the verb used was "smashed"
thought the cars were going faster than
those who were asked the question with
"hit" as the verb…read more

Slide 7

Preview of page 7
Preview of page 7

Slide 8

Preview of page 8
Preview of page 8

Slide 9

Preview of page 9
Preview of page 9

Slide 10

Preview of page 10
Preview of page 10


No comments have yet been made

Similar Psychology resources:

See all Psychology resources »See all resources »