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The Executive Interview (EXIT25) as a tool for assessing executive functioning in older medical and surgical inpatients referred to a psychiatry service: feasibility of creating a brief version

Published online by Cambridge University Press:  04 March 2014

Fedza Mujic ,
Eyal Lebovich ,
Maite Von Heising ,
Damian Clifford  and
Martin J. Prince
Fedza Mujic*
Affiliation:
South London and Maudsley NHS Foundation Trust, Liaison Psychiatry for Older People, Department of Psychological Medicine, King's College Hospital, Denmark Hill, London SE5 9RS, UK
Eyal Lebovich
Affiliation:
South London and Maudsley NHS Foundation Trust, Liaison Psychiatry for Older People, Department of Psychological Medicine, King's College Hospital, Denmark Hill, London SE5 9RS, UK
Maite Von Heising
Affiliation:
South London and Maudsley NHS Foundation Trust, Liaison Psychiatry for Older People, Department of Psychological Medicine, King's College Hospital, Denmark Hill, London SE5 9RS, UK
Damian Clifford
Affiliation:
South London and Maudsley NHS Foundation Trust, Liaison Psychiatry for Older People, Department of Psychological Medicine, King's College Hospital, Denmark Hill, London SE5 9RS, UK
Martin J. Prince
Affiliation:
South London and Maudsley NHS Foundation Trust, Liaison Psychiatry for Older People, Department of Psychological Medicine, King's College Hospital, Denmark Hill, London SE5 9RS, UK, and Centre for Public Mental Health, Health Services and Population Research Department, P060, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK
*
Correspondence should be addressed to: Dr F Mujic, South London and Maudsley NHS Foundation Trust, Liaison Psychiatry for Older People, Department of Psychological Medicine, King's College Hospital, Denmark Hill, London SE5 9RS, UK. Phone: 44-20-32993036; Fax: 44-20-32995855. Email: [email protected].
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Abstract

Background:

Most neuropsychological tests of executive function are time-consuming and otherwise unsuitable for routine bedside assessment, particularly in older people admitted to a general hospital. After introducing the Executive Interview (EXIT25) in our routine clinical practice, we hypothesized that it would be possible to shorten it for easier administration in our group of patients while maintaining or improving properties of the scale.

Methods:

The EXIT25 was applied in 122 clinically stable medical and surgical inpatients aged 65 years and over referred to the Liaison Psychiatry Service for Older People. Individual items were initially tested for floor and ceiling effects, inter-rater and test-retest reliability, and item-total correlations. Items were then selected for retention in the brief scale on the basis of adequate item-total correlation and inter-rater and test-retest reliability. The construct validity of the original and brief versions of the EXIT25 scale was assessed.

Results:

The original EXIT25 scale was found to lack desirable scaling properties either as a classical or hierarchical scale. The study confirmed a possibility to reduce the number of items to nine out of the original 25 while improving internal consistency, test-retest and inter-rater reliability, and maintaining high correlation with the original EXIT25 score, and moderate inverse correlation with the Mini-Mental State Examination score.

Conclusions:

There is potential to abbreviate the original EXIT25, and improve internal consistency and hierarchical scaling properties. Future research is necessary to focus on piloting these brief measures of executive function in relevant clinical settings, when administered en bloc, rather than with items interspersed in the original longer version.

Keywords

The Executive InterviewEXIT25scale testingexecutive functionolder people
Type
Research Article
Information
International Psychogeriatrics , Volume 26 , Issue 6 , June 2014 , pp. 935 - 941
Copyright
Copyright © International Psychogeriatric Association 2014 

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