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Wieland, J.; Wardenaar, K. J.; Fontein, E.; Zitman, F. G. – Journal of Intellectual Disability Research, 2012
Background: Diagnostics and care for people with intellectual disabilities (ID) and psychiatric disorders need to be improved. This can be done by using assessment instruments to routinely measure the nature and severity of psychiatric symptoms. Up until now, in the Netherlands, assessment measures are seldom used in the psychiatric care for this…
Descriptors: Intelligence, Mental Retardation, Mental Disorders, Validity
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Gloster, Andrew T.; Klotsche, Jens; Chaker, Samia; Hummel, Katrin V.; Hoyer, Jurgen – Psychological Assessment, 2011
The construct of psychological flexibility (PF) is a central concept in acceptance and commitment therapy. It is defined as the process of contacting the present moment fully as a conscious human being and persisting in or changing behavior in the service of chosen values. PF is hypothesized to be an important aspect of healthy psychological…
Descriptors: Anxiety Disorders, Validity, Patients, Psychometrics