Psychometric evaluation of a short observational tool for small-scale research projects in dementia.

Dementia is a degenerating illness and the lack of a reliable measure of self-report in particular presents particular difficulties for research. Often in the later stages of dementia behavioural measurement is the only tool available for the evaluation of treatment techniques. This paper describes and evaluates a short observational tool suitable for clinical assessment purposes. The scale has been shown to have the potential for adequate inter-rater reliability, test retest reliability, and convergent and divergent validity, if the study limitations reflecting statistical rather than ecological validity, and limitations of sample size are borne in mind.

Hopelessness: The role of depression, future directed thinking and cognitive vulnerability.

Previous research has suggested that parasuicides are impaired in their ability to generate positive future experiences. This study aimed to look at the relationship between future experiences, cognitive vulnerability and hopelessness in parasuicides and matched hospital controls. Parasuicides ( N = 20) and matched hospital controls ( N = 20) were assessed the day following an episode of deliberate self-harm on measures of hopelessness, depression, anxiety, cognitive vulnerability and future directed thinking. The parasuicides differed from hospital controls on measures of depression, hopelessness and negative cognitive style in the predicted direction. Future positive thinking, depression and negative cognitive style explained 70.5% of the hopelessness variance. Future positive thinking was not correlated with either depression or negative cognitive style, whereas negative cognitive style was correlated with depression and hopelessness. Future directed thinking contributes to hopelessness independently of depression and does not seem to be associated with cognitive vulnerability.