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Is Your Cognitive And Physical Functioning OK? New Instrument To Check It

Date:
April 3, 2009
Source:
Journal of Psychotherapy and Psychosomatics
Summary:
A group of Italian and American investigators has published a new instrument for assessing cognitive and physical functioning (the Massachusetts General Hospital Cognitive and Physical Functioning Questionnaire, CPFQ), in mood and anxiety disorders. The CPFQ seems to be a unifactorial scale, with strong internal consistency, good temporal stability and sensitivity to change with treatment. Further studies will be needed to assess the validity and reliability of this instrument in other psychiatric and neuropsychiatric conditions associated with cognitive dysfunction.

A group of Italian and American investigators has published a new instrument for assessing cognitive and physical functioning (the Massachusetts General Hospital Cognitive and Physical Functioning Questionnaire, CPFQ), in the current issue of Psychotherapy and Psychosomatics. It is a brief scale to measure cognitive and executive dysfunction in mood and anxiety disorders.

The internal consistency of the CPFQ was assessed by computing Cronbach's coefficient based upon the average intercorrelation of the 7 items of the CPFQ in a sample of depressed outpatients and by factor analyzing data from the same sample to confirm that the scale is unifactorial and measuring a single construct screening scores and pretreatment baseline scores.

Sensitivity to change of the CPFQ was assessed by computing the dependent t test for the subjects in the active treatment condition in the second sample of depressed outpatients. Finally, convergent validity for the CPFQ was assessed in two different ways. Test-retest reliability of the CPFQ was assessed in a different sample of depressed outpatients by computing Pearson's correlation coefficient between pretreatment. The investigators found that the CPFQ is a unifactorial scale, with strong internal consistency. It has good temporal stability as indicated by high test-retest reliability. The CPFQ was also found to be sensitive to change with treatment and displayed convergent validity by significant correlations with other measures of sleepiness, fatigue, apathy and neuropsychological functioning. Although, as expected, the CPFQ was significantly correlated with a measure of depression, the moderate correlation (r ~ 0.30) indicates that the CPFQ is measuring a different construct.

In summary, the CPFQ is a unifactorial scale, with strong internal consistency, good temporal stability and sensitivity to change with treatment. Further studies will be needed to assess the validity and reliability of this instrument in other psychiatric and neuropsychiatric conditions associated with cognitive dysfunction.


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Cite This Page:

Journal of Psychotherapy and Psychosomatics. "Is Your Cognitive And Physical Functioning OK? New Instrument To Check It." ScienceDaily. ScienceDaily, 3 April 2009. <www.sciencedaily.com/releases/2009/04/090403080831.htm>.
Journal of Psychotherapy and Psychosomatics. (2009, April 3). Is Your Cognitive And Physical Functioning OK? New Instrument To Check It. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2009/04/090403080831.htm
Journal of Psychotherapy and Psychosomatics. "Is Your Cognitive And Physical Functioning OK? New Instrument To Check It." ScienceDaily. www.sciencedaily.com/releases/2009/04/090403080831.htm (accessed July 31, 2014).

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