Reliability and validity

Hypochondriasis appears to be a reliable and valid diagnosis. Barsky et al.(24) found that, in general medical patients, distinguishing characteristics of the disorder aggregated in certain individuals but were less common in others. These same individuals had other clinical features that gave hypochondriasis external validity, and follow-up studies showed that the diagnosis remained stable over time. Using a structured interview, Barsky et al.(16) demonstrated high inter-rater agreement and positive correlation between interview and physician ratings of hypochondriasis (concurrent validity). Patients identified by this interview had more frequent ancillary features of hypochondriasis than did non-hypochondriacal patients (external validity). Other clinical features distinguished interview-positive from interview-negative patients, indicating a degree of discriminant validity.

Funny Wiring Autism

Funny Wiring Autism

Autism is a developmental disorder that manifests itself in early childhood and affects the functioning of the brain, primarily in the areas of social interaction and communication. Children with autism look like other children but do not play or behave like other children. They must struggle daily to cope and connect with the world around them.

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