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Volume :3 Issue : 12 1977      Add To Cart                                                                    Download

MEASURING HOMOGENEITY OF RESULTS IN KUWAIT UNIVERSITY SINCE THE ADOPTIONOF THE COURSES SYSTEM

Auther : Dr. Abou-Bakr A. Hussein

 

         The main objective of this paper is to measure homogeneity of sections results since the adoption of the courses system in Kuwait University.  The results of any section (year / semester / faculty / department / course / section) are considered sample results of unequal sizes drawn from some system of causes; that is, a group of factors working together to produce a given result.  A stable system of causes is assumed to be in existence and is expected to produce homogeneous Sections’ results.  Parameters of the stable system of causes are not known and must be estimated on the basis of a posteriori observations.  However, estimates of the parameters must be based on data drawn from a constant source (population).

         On the basis of sequential testing of hypothesis, sections are classified into two categories; namely, member and alien.  Hypotheses pertaining to means and variances are applied to each subgroup (section) in comparison with the mean and variance of the member-group (combined results of member section only).  Member sections have means and variances not significantly different from the mean and variance of the member-group.  Alien sections have significantly different means and / or significantly different variances.

         A group is composed of a number of sections chosen according to logical and indicative criteria.  The study covers 283 groups and the results are tabulated in tables 1 through 8.  Criteria used to form the groups include time (semesters), faculties, departments, the language center, university requirements and the core courses in the business program.

         For each group three rations of homogeneity are calculated.  Homogeneity ratios of courses students or grades are based on relating courses, students or grades of the member-group to courses, students or grades of the whole group.  Adjustments are made to account for the expected overall alpha error.  Also, the geometric mean of the three ratios is tabulated as a fourth ratio.

         Twenty seven of the groups are subjected to an additional study.  The distribution of the grades of each of these groups is treated as an ordered series.  Each ordered series is normalized by corresponding the observer cumulative relative frequencies of the member group to ends of intervals of a normal distribution.  The end of the grade F is to an x-score of 59 99 the end of the grade B+ is equalized to an x-score of 89 99.  All other dividing points between grades are calculated and tabulated in table 9.

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