أثر اختلاف الشحنة الانفعالية للفقرات في الخصائص السيكومترية بمقياس للاتجاهات
This study aimed to identify the effect of the difference in emotional charge of the items in an attitude scale on its psychometric properties, to find out the reasons for the existence of differences in the psychometric properties and students’ performance attributed to the difference in the emotional charge of the items of the attitude scales, and to help researchers build highly accurate scales, and choose the paragraphs with the appropriate emotional charge to build the items of their attitude scales. To achieve the purpose of the study, the researcher built a measure of attitudes towards academic specialization, and the scale was limited to (40) items distributed on three dimensions: attitudes towards the importance of academic specialization in life, attitudes towards academic specialization courses, and attitudes towards academic specialization as a profession. The researcher designed four models for the scale; the first model was composed of all items with a charge: high and low emotional charge; the second model had only high emotional charge items, while the third model had only low emotional charge items, and the fourth model had moderate emotional charge. The four models were applied to a random sample of (750) male and female students from Yarmouk University, the results showed that there are statistically significant differences in the averages of the difficulty parameter estimates for the items, in favor of the second model (with a high emotional charge only), and there are statistically significant differences in the averages of the discrimination features, due to the difference in the emotional charge of the items, and confirmed the indicated results that the first model is higher in the validity and reliability coefficients of the scale. (Published abstract)