The aim of this study was to investigate the attitudes of students, instructors, and educational principals to electronic administration of final-semester examinations at undergraduate and post- graduate levels in Payame Noor University in Khuzestan. The statistical population of this study consisted of all educational principals, instructors, of…

Educational researchers commonly use the rule of thumb of "design effect smaller than 2" as the justification of not accounting for the multilevel or clustered structure in their data. The rule, however, has not yet been systematically studied in previous research. In the present study, we generated data from three different models…

Besides the ubiquitous Pearson product-moment r, there are a number of other measures of relationship that are attenuated by errors of measurement and for which the relationship between true measures can be estimated. Among these are the correlation ratio (eta squared), Kelley's unbiased correlation ratio (epsilon squared), Hays' omega squared,…

A STUDY CONCERNED WITH THE CHILD REARING PRACTICES OF MOTHERS WITH YOUNG CHILDREN UNDER SIX WAS UNDERTAKEN TO PROVIDE NORMATIVE DATA ON BREAST-FEEDING, BOWEL TRAINING, AND DISCIPLINE AND TO RELATE THE DATA TO FAMILY SOCIOECONOMIC STATUS. FACTORS CONSIDERED WERE OCCUPATION OF THE HEAD OF THE HOUSE, LEVEL OF INCOME, AND EDUCATION OF THE MOTHER. DATA…