This study was done in the
time of the anti-psychiatry
movement which was
launched in the 1960's by
Foucalt, Szasz and Laing.
An attempt to show
how bad diagnosis of
mental health was
Cooper had found that
psychiatrists in NY were 2x
more likely to diagnose SZ
than psychiatrists in
London
The anti-psychiatrist
movement questioned the
validity of psychiatric diagnosis
Aim
Investigate whether it was the
characteristics of the individual which
lead to a diagnosis of mental illness or
whether the context (psychiatric
hospital) would have greater influence
Procedures
8 confederates =
pseudopatients. Took
place in 5 different
states, covering 12
psychiatric hospitals.
Call for appointment --> Arrived
and complained of hearing voices
saying empty hollow and thud -->
real life histories given but false
names and occupations -->
stopped pretending symptoms
once on ward and recorded
observations --> discharged when
they convinced staff they were
sane
to see whether
tendency towards
diagnosing sane as
insane could be
reversed
Staff told every hospital would
admit one or more pseudopatient
in the next 3 months --> each new
patient assessed on how likely
they were a pseudopatient on a
scale of 1-10 --> there were no
psuedopatients
Findings
100% wrongly admitted to ward
Average length of stay ranged
from 7-52 days, averaging 19
days
11 diagnosed with SZ and 1 with manic depression
No professional questioned their genuineness
but patients did (are you a journalist)
Experience of hospitals unpleasant due
to abuse, minimal privacy,
depersonalisation and loss of power
Staff misinterpret normal behaviour
Ppts given 1200 meds - flushed
down toilet and found other
tablets there too
Professionals
tended to
keep away
from patients,
rarely made
eye contact or
conversation
Part 2 - Out of
193, 41 judged
as pseudo. Of
those 41, 19
suspected by 2
members of
staff
Conclusions
There are many problems in the
psychiatric diagnosis department
Misdiagnoses are common
Inadequate efforts to
communicate with patients
Rely on drugs
Physical and verbal abuse
Psychiatric hospitals had
very bad conditions
Lacks privacy
Leads to feelings of depersonalisation
DSM (pub. 1952) not working
too well - many
misunderstandings?
Type 2 errors are
just as likely as
type 1 errors (both
found)
Evaluation
Generalisability
Used range of hospitals from 5 states
but this is only 10% of states in USA!
Only 8 confederates - not many people to report back
Reliability
Low inter-rater reliability - only one experimenter
High consistency between 12 hospitals - not just a one-off
Application
Nelly Bly found the same in the 1980s
Shows what needs to be imroved
Validity
Used DSM but now we have DSM V (outdated)
Population
validity high
- tested USA
which was
aim
Trauma =
remembered
wrong,
exaggerated,
observations
depend on
expectations
Demand characteristics in part 2
Historical validity (Nelly Bly)
Ecological validity - real life institutes
Not mundane
realism - normally
you wouldn't go into
mental hospital
Part 2 = overthinking -
impact on judgement
Ethics
Part 2 all ppts had no informed consent or
right to withdraw, and deception was used