A semi-structured clinical interview for psychosis sub-groups (SCIPS): development and psychometric properties.

Background: Clinical sub-groups of schizophrenia, namely drug related, traumatic, anxiety and stress sensitivity sub-types, have been proposed for use in research, training and practice. They were developed on the basis of clinical observation but have not yet been used in research or clinical practice to any great extent.

Aims: To develop a semi-structured clinical interview for psychosis sub-groups (SCIPS) and determine the best diagnostic criteria with the highest inter-rater reliability, test-retest reliability and concurrent validity for sub-grouping patients with schizophrenia according to a newly developed classification scheme.

Fear of negative evaluation is associated with delusional ideation in non-clinical population and patients with schizophrenia.

Purpose: A number of recent studies suggest that delusions may be explained as a continuum from normal beliefs. Fear of negative evaluation from others (FNE) is one of potential factors that might describe this psychological process of delusions.

Methods: In order to examine whether FNE is associated with delusional ideation in both non-clinical population and patients with schizophrenia, two sets of data [from a non-clinical student sample (n = 282) and from patients with schizophrenia (n = 117)] were collected to examine whether Brief Fear of Negative Evaluation Scale (BFNE) score and the 21-item Peters Delusions Inventory (PDI-21) score were associated with each other.