Effect of Items Direction (Positive or Negative) on the Factorial Construction and Criterion related Validity in Likert Scale

The study was conducted to know the effect of items direction (positive or negative) on the factorial construction and criterion related validity in Likert scale. The descriptive survey research method was used for the study, the sample consisted of 510 undergraduate student were selected by used random sampling technique. A scale developed by Sobhei Hamdan & Mohammed Jehad (2007) was used by the investigator to access attitude of students towards undergraduate study. The finding of the study revealed that: (1) there are differences in the number of factors calculated by factor analysis and showed that there is effect of items direction (positive or negative) on the factorial construction criterion related validity in Likert scale; and (2) criterion related validity is not affected even when the items’ directions for Likert's type differ (positive, negative, half- positive, half- negative and random [positive & negative]) and there is no effect of items direction (positive or negative) on the criterion related validity in Likert scale.