Criminal Flashcards
What is the key question for criminal
Are eye witness testimonies reliable?
Post event information
Their own pre-existing knowledge is contaminated by pre existing schema, expectations, what the witnesses say, how police ask questions, media reporting
What method was used for the criminal exam
Interviews
Aim of my criminal exam
To investigate whether Ps given a cognitive interview after witnessing an armed robbery will yield more correct facts than Ps who are given standard interviews
Hypothesis for my criminal exam
I believe that Ps who were given the standard interview will provide less correct facts than those who had the cognitive interview
Nul hypothesis for criminal
There will be no difference
IV of my criminal exam
Cognitive interview or standard interview
Dependent variable of my criminal exam
How many correct facts
What group design was used in my criminal
Independent group design
Procedure of my criminal psychology exam
Students from 2 psychology classes were randomly given either a CI or SI- the psych students then found Ps to interview who were then instructed to sit in the center of the room in silence while watching the same crime take place. Once the video had finished they were taken to a silent area and interviewed by the psych students 1-1 and the psych students watched the crime, ticking off each correct piece of info mentioned. The scores were then tallied onto a chart. Watched vid once
What type of sample was used in criminal psych
Opportunity 16
What was the finding of my criminal exam
CI had 14 mean and SI had 11.9 mean, critical value was 15 so we accept our null hypothesis
What type of data was collected in my criminal psych
Ordinal data and Mann Whitney u
Conclusion of my criminal study
There was very little difference between SI and CI and our critical value of U=15 was too small meaning there was not enough difference and our null hypothesis is accepted
Weaknesses of my criminal exp
- ethical difficulties as may be upsetting to some viewers
-some ppts were psych students emanating although it was generalizable, they new about the protocol and they were only SW students so there needed to be a wider range
What can effect EWT
-alcohol consumption
-pre-trail publicity
-schemas and pre-existing knowledge
-appearance
-WFE
-contamination
-time
How they were interviewed
Why mights someone commit a crime
-XYY
-amygdala impairment
-social influence
-labelling theory
-mental health
- psychoticism
-self-fulfilling prophecy
- FL damage
-neglect
-warrior gene
Generalizability of lotus and palmer
The ps were all psych students meaning they understand and have knowledge about the memory so will be more likely t second guess
Reliability of LnP
7 health and safety vids shown and these can easily be replicated for accurate results, all ps also saw the same thing meaning there was no confounding variables under the controlled conditions
Application of LnP
The case of Ronald Cotton who was falsely accused of rape as the victim was led to believe it was him
Validity of LnP
Lab experiment - artificial environment however no outside influence howvever isn’t true to real lie crimes as it is expected for something to happen
Thicality of LnP
Saw a video of car crash so may be distressing
Gender differences in personality and temperament
Women typically have less testosterone and culturally are raised to be caring and less protective
Gender differences in labelling theory and SPF
Men are more likely to be labeled as criminals due to official bias and stereotypes
Gender differences in XYY
Only effects men as women don’t typically have the Y chromosome
Gender differences in brain injury
Men being more likely to get injured due to more psychical work and interests
Experiment 1 LnP sample
45 students, uni of Washington, opportunity sample
Experiment 1 LNP procedure
Lab experiment, 5 conditions only 1 to each ppt, independent measures, 1-7 traffic accident films in a random order to each group for 5-30seconds, they were then asked questions like ‘how fast were they going when they crashed’ with wording changed to hit, contacted, bumped, smashed and collided
IV of LnP exp1
Wording of Q
DV of LnP speed reported by Ps
Exp 1 results LnP
Contacted (31.8)
Hit (34)
Bumped (38.1)
Collided (39.3)
Smash (40.8)
Estimated speed affected by verb used
Exp 2 results LnP
Saw glass-
Smash- 16
Hit- 7
Control-6
Didn’t see glass-
34
40
44
Exp 2 LnP procedure
Were shown multiple accidents for 1 min or 4 secs and then a series of Q asked to sets of 50 students and then 1 week later without rewatching were asked 10 Qs- one random and one critical e.g did you see any broken glass when there wasn’t any
Exp 1 LnP sample
150 students
IV and DV of exp 1 LnP
IV- type of Q asked
DV- one random and one critical Q asked without rewatching the videos
What were the 3 options of Q asked in LnP
50- how fast were the car going when they hit each other
50- how fast were the car going when they smashed each other
50- not asked a Q (control)
Why was the ethical interview invented
Should treat suspects with respect and equals
Due process
Individual has rights which must be adhered to despite criminal justice system
Baldwin 1992
Looked over 400 or more police interviews where standards were low and there was many problems with process by the officers leading them astray
What did Baldwin suggest
That SI took a strong and provocative approach, leading to suspects refusing to take part and interviews being too judgmental
Purpose of PEACE
Meant to build trust and make the suspect feel they’re listened to as part of the ethical interview
P in peace interview
Planning and prep
Should get to know the case and plan before the interview
E in peace
Engage and explain
Report built alongside suspect make them feel comfortable
A in peace
Account
Individual asked to mention what they saw and is decided ho this is elicited in planning stage
C in peace
Closure
Maintain report and bring it to a comfortable end
E in peace
Evaluate
Evaluated against required aims to look at material that is obtained
Weakness of Ei
Practical issues as it requires specialist training in order to use peace effectively- this would be cost and time effective
Strengths of EI
Practical application to society as it linked to the improvement in the reliability of EWT as well as improving societies view on the police
When is the CI used
For cooperative witnesses
Simple technique
Provide open Q to tell the witness to report everything they remember
Context reinstatement
Encourages retrieval of visual place and scenario through pics or place
Reverse the temporal order of recall techniques
Makes the witness recall most recent episodic scenes by going backwards so they cant lie
Change perspective technique
Triggers more info and gets witness to see the bigger picture from the event
What did Geisleman 1986 see
Found that CI decreased the witnesses susceptibility to misleading Q and prevented original memory trace from being altered
Fisher 1990
Carried out a field test on the use of CI by comparing the performance of police before and after CI training. Detectives collected more info after training and most was accurate and there was more confabulation in witness statement
Independent
Differences recorded
Dependent
What was recorded
WFE
If a witness to a crime that involves a weapon, they will focus more attention on the weapon and remember more details
Tunnel theory
Excludes other competing information as the weapon produces a form of selective attention
Loftus WFE
Argues the weapon draws attention from the less dramatic visual info as Ps looked longer at the gun in a slide sequence