These are the PANSS subscale and total scale scores of five clinical trial in schizophrenia. A total of \(1941\) patients were treated by \(126\) investiagators (psychiatrists). There were two treatment conditions (risperidone and control). Patients' schizophrenic symptoms were measured using the PANSS (Kay et al., 1988).
data(PANSS)A data.frame with \(1941\) observations on \(9\) variables.
Pat.IdThe patient ID.
TreatThe treatment indicator, coded as \(-1\) = active control and \(1\) = Risperidone.
InvestThe ID of the investigator (psychiatrist) who treated the patient.
NegThe Negative symptoms scale score.
ExcThe Excitement scale score.
CogThe Cognition scale score.
PosThe Positive symptoms scale score.
DepThe Depression scale score.
TotalThe Total PANSS score.
Kay, S.R., Opler, L.A., & Lindenmayer, J.P. (1988). Reliability and validity of the Positive and Negative Syndrome Scale for schizophrenics. Psychiatric Research, 23, 99-110.