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PSYCHOMETRIC PROPERTIES OF AN AFRICAN SYMPTOMS CHECK LIST SCALE: THE NDETEI – OTHIENO – KATHUKU SCALE
Abstract
Objectives: To profile and quantify the psychometric properties of the NOK (Ndetei-Othieno-Kathuku) scale against internationally used Gold-standards and benchmarks for mild psychiatric disorders and post-traumatic stress disorders and to provide a potential easy to administer culture sensitive instrument for screening and assessing those with possible psychiatric disorders for the Kenyan
and similar social-cultural situations.
Design: Cross-Sectional quantitative study.
Setting: A psychiatric clinical consultation setting and Kyanguli Secondary School psychotrauma counselling clinical set-up.
Subjects: Survivors of the Nairobi USA Embassy bombing who were referred for psychiatric treatment and survivors of a fire disaster from a rural Kenyan school (Kyanguli School fire disaster) including students, parents of the diseased children and staff members.
Results: Positive correlation was found between the NOK and all the instruments. The highest correlations were between the NOK and the BDI and SCL–90 (r = 0.557 to 0.786). The differences between the NOK scores among the different groups were statistically significant (F ratio = 13.54
to 160.34, p < 0.01). The reliability coefficient (internal consistency) of the scale, alpha = 0.9733.
Other item statistics and correlations of the scale are discussed.
Conclusion: It is concluded that the NOK has high concurrent and discriminant validity as well as a high internal consistency and that it can be used for the rapid assessment of psychotrauma victims
of all age groups; and stress in general in similar age groups in the local setting. It is culture appropriate and sensitive.
and similar social-cultural situations.
Design: Cross-Sectional quantitative study.
Setting: A psychiatric clinical consultation setting and Kyanguli Secondary School psychotrauma counselling clinical set-up.
Subjects: Survivors of the Nairobi USA Embassy bombing who were referred for psychiatric treatment and survivors of a fire disaster from a rural Kenyan school (Kyanguli School fire disaster) including students, parents of the diseased children and staff members.
Results: Positive correlation was found between the NOK and all the instruments. The highest correlations were between the NOK and the BDI and SCL–90 (r = 0.557 to 0.786). The differences between the NOK scores among the different groups were statistically significant (F ratio = 13.54
to 160.34, p < 0.01). The reliability coefficient (internal consistency) of the scale, alpha = 0.9733.
Other item statistics and correlations of the scale are discussed.
Conclusion: It is concluded that the NOK has high concurrent and discriminant validity as well as a high internal consistency and that it can be used for the rapid assessment of psychotrauma victims
of all age groups; and stress in general in similar age groups in the local setting. It is culture appropriate and sensitive.
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