Zusammenfassung der Ressource
Evaluation of
Raine's 1997 study
- GENERALISABILITY
- Largest sample size for
PET scanning = enough for
useful comparison
- Therefore better generalisation to
murderers pleading guilty
- HOWEVER...
- At no time were the
murderers
circumstances taken into
account
- For example, murder may have
been committed in act of defence
- RELIABILITY
- Scientic method- likely to have reliable findings
- Can be replicated
- Replicating the study with different groups
of participants would help give strength to
results
- APPLICATION
- PET scans can be
used in defence in a
court of law
- In a situation where an
individual is pleading guilty for
reasons of insanity
- VALIDITY
- The results given are not
very precise, in terms of
areas of activity and how
active
- They do not tell you what areas of
the brain are actually doing
- They can say which parts are
active at any time
- But not why, and this is an issue
for the validity of the results
- NEEDS AN EXPLANATION
- ETHICS
- PROTECTION OF PARTICIPANTS
- Individuals may have become
stressed by the procedure of
the PET scan
- OBJECTIVITY
- PET scanning is an objective technique
- Results can be
interpreted by more than
one researcher