SCHIZOPHRENIA-issues with classifcation Flashcards
what is reliability?
extent to where psychiatrists can agree on same diagnosis when independantly assessing patient
what do some psychiatrists do?
Some parts of the world may use diagnostic tool DSM and others ICD
what are the reliability issues? (6)
both different diagnostic criterias no physical cause interpretations of symptoms= subjective diagnostic criteria on dsm 1 symptom required if delusions ‘ bizarre’ rosenhan main study
what is meant by both different diagnostic criterias?
ICD= 7 subtypes and DSM= 5 subtypes. although updated = diagnosis not consistent between different parts of world who are dependant on tools = 1 could say normal while other schizo
synopsis of both different diagnostic criterias?
cultural bias & ethical concerns
why is both different diagnostic criterias cultural bias and ethical concerns?
cultural-on identification tool and where patient is= inconsistent . ethical- because if diagnosed as schizo when not could affect area of lives such as employment or how people percieve them and even on the basis of being stigmatised and msitreated
what does both different diagnostic criterias also highlight?
schiz not understood well enough to even diagnose
what is meant by no physical cause?
placed on patient to report symptoms which are not always accurately described due to condition, hindering reliability
what is meant by interpretations of symptoms= subjective?
down to person doing diagnosis and importance placed on individs ability on diagnosis. vary btw health profressional. skill experience and knowledge affect reliability.
study for interpretation of symptoms?
WHALEY
what happened in whaley?
found inter rater reliabilty bte health professional low as 0.11 - findings- diagnosis rarely consistent btw them and dsm tool unreliable and inaccurate diagnosis
what is study for diagnostic criteria on dsm 1 symptom required if delusions ‘ bizarre’ which is difficult to always agree on?
mojtabi
what happened in mojtabi?
senior psych ask to differentiate between bizarre and no bizarre delusions- they produced inter reliabilty corellations of 0.40 (even diagnostic requirements lack reliability to distinguish btw schiz and non schiz symptoms - using bizarre to diagnose
synposis for mojtabi?
reductionist and attempt to over simplyfly something we dont understand
what is rosenhan issue?
rosenhan main study - (highlighted unreliability for diagnosis) normal people went to psych hospitals to claim hearing voices, they were all diagnosed with schiz and admitted. throughout stay noone realised normal highlighting unreliabilty of diagnosis raising ethical issue. follow up study rosenhan informed hosp sending fake p resulted in 21 % detection rate highlights diagnos unrelaibale meaning current undertsanding of schiz lacking validity.