AU - Ibrahim, Ali Mohammed. AU - Bakkar, Bakkar S. ID - 113548 OP - pp. 638-656 T1 - The impact of the polarity of questionnaire items on factor structure and measurement of the underlying trait : the case of the psychological mindedness scale [Article] UL - 1 http://search.shamaa.org/fulltext.gif http://search.shamaa.org/PDF/Articles/BAJepsc/34JepscVol16No3Y2015/jepsc_2015-v16-n3_638-656_eng.pdf Full text (PDF)