n IFE PsychologIA : An International Journal - Divergent validation and reliability of Impact of Event Scale (IES) in Nigeria

Volume 18, Issue 1
  • ISSN : 1117-1421



This study was on the divergent validation and reliability of impact of Event Scale (IES), in Nigeria. 200 male participants were included in the study. They were divided into experimental (the victims of trauma) and the control groups. Their ages ranged between 25 and 68 years with M age of 49.63 and SD age of 3.60. The IES was used to elicit their traumatic level, while correlation statistics (Pearson & Kendall's tau b) and split half reliability method were used for data analysis. The result of the study showed that IES had divergent validity and thus was an adequate screening instrument for psychological impact of trauma. In addition, the IES had good internal consistency and showed independence of the two sub factors (Intrusion & Avoidance). Implication and suggestions for further studies were stated.

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