Behavioural problems are an important feature of dementia and other neuropsychiatric conditions. This paper describes the development and performance of an investigator-based interview (the PBE) for the detailed assessment of the behaviour of subjects over the preceding four weeks. The interview is designed to be administered to carers.
A test–retest reliability study was carried out on the penultimate edition of this interview; and the inter-rater reliability of the final edition was measured. These studies show that the reliability of the PBE is comparable with that of other investigator-based interviews.
c1 Address for correspondence: Dr Tony Hope, University Department of Psychiatry, Warneford Hospital, Oxford OX3 7JX.
1 The PBE is available from Dr Hope for the cost of copying and postage.