Untitled - Umalusi

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2.1 Standardisation of CASS marks Finally, the adjusted CASS mark of each candidate is combined with the adjusted examination mark in the ratio of 25:75, i.e. CASS constitutes Statistical moderation of CASS marks is undertaken per subject and per institution. The mean and standard deviation of the standardised examination marks (written paper) and those of the CASS marks are used in this process. The mean and standard deviation of the CASS marks are compared, per subject, per institution, with those of the standardised examination marks of the same candidates. Generally, the CASS marks are adjusted (up or down) to a mean of 5% above that of the standardised examination marks and to a corresponding standard deviation. If the CASS mean falls within a certain range above the examination mean plus 5%, then the CASS marks may be accepted as is, or adjusted downwards towards this mean. If the standard deviation of the CASS marks is too low (relative to that of the adjusted examination marks), indicating that the teacher was unable to distinguish between candidates’ performances and give a good spread of CASS marks, then the CASS marks are rejected and each candidate in the class is assigned a new CASS mark of exactly 5% above his or her examination mark. 25% of the final mark of the candidate. 3. Standardisation meetings In contrast to previous years, when the standardisation meetings were convened and chaired by the assessment bodies (the National and Provincial Departments of Education, the IEB and BCVO), for 2005 they were convened and chaired by Umalusi. There were a total of 12 meetings, the first being the national meeting to consider the six common subjects (at higher and standard grade), which took place at the Sheraton Hotel chaired by the Chairperson of Umalusi’s Council. All the provincial meetings and those with the IEB and BCVO were held at Umalusi’s offices. Members of Umalusi’s Council chaired the meetings. Umalusi’s Statistics Working Group responsible for the mark adjustment process attended the national meeting as one team, but split into two teams of three members each for the other meetings. The latter meetings were organised in two parallel streams, with one team of statisticians attending each. In this way all the meetings could be completed in three days, instead of four days as in previous years. 75
3.1 The national standardisation meeting were effected in each of the provinces for subjects with enrolments greater than 500. The meeting was conducted in a cordial spirit, and after a debate on the results of each subject, the statistical adjustments were agreed upon by both the assessment body and by Umalusi. “Computer adjustment” means that the marks were adjusted upwards or downwards by the computer to be brought in line with the norm (or as far as possible within the 10% limit). “Raw and computer adjustment” In contrast to previous years, the 2005 raw marks were all lower than their four-year averages, and History had its lowest marks to date. As a generally means that marks were adjusted upwards on to the norm and, when the norm was below the raw marks, the latter were retained. The result, upward adjustments were applied to all subjects. In most cases last two columns generally mean that marks were either not adjusted as the upward adjustments were relatively modest and below the allowed maximum of 10%, except for Physical Science HG, where this maximum increase was applied to the raw marks in the range 30% to 62%. For Mathematics HG, fairly high upward adjustments were required to get the mark distribution on to the norm, whereas for Mathematics SG the maximum upward adjustment was less than 3%. 3.2 Assessment body meetings The meetings with all the Assessment bodies were conducted in a far as the norm or, rarely, to beyond it. 3.3 Standardisation of CASS marks CASS marks were programmatically adjusted in accordance with the principles agreed for CASS standardisation. A detailed analysis of the CASS marks will be carried out early in the new year to establish whether or not the reliability of these marks is improving. However, one indicator of the quality of CASS is the percentage of CASS marks that have low standard deviations and are therefore rejected. congenial spirit. The table on page 77, summarises the adjustments that 76
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Report to the Minister of Education
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Foreword Umalusi has approved the r
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Chapter 1 Overview of the 2005 Seni
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Umalusi is responsible for the qual
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A sample of nine subjects was ident
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Chapter 2 Moderation of question pa
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• Technical Drawing • Travel an
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5. 2 Cognitive skills In History, m
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5.6 Back-up question papers • eff
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8. Recommendations Based on the ana
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Chapter 3 Moderation of Continuous
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ASSESSMENT BODY SUBJECT NO.OF SCHOO
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Page 28 and 29: e discussed later in the report. co
Page 30 and 31: • Weighting of CASS components
Page 32 and 33: • The weighting for classwork set
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Page 36 and 37: - No regard to argumentative type e
Page 38 and 39: educators marking and that of the i
Page 40 and 41: e. Still in Limpopo, History markin
Page 42 and 43: • Assessment in an outcome-based
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Page 46 and 47: during the writing phase were selec
Page 48 and 49: light. This is shown by the fact th
Page 50 and 51: invigilators were seated and the re
Page 52 and 53: High School, Isaiah Christian Schoo
Page 54 and 55: 6.5 Candidates in the Western Cape
Page 56 and 57: part of Umalusi’s broad function
Page 58 and 59: g. The Independent Examinations Boa
Page 60 and 61: Umalusi has in place the required q
Page 62 and 63: • Centralised moderation of marki
Page 64 and 65: Assessment body BCVO IEB Eastern Ca
Page 66 and 67: memo discussion was held two days a
Page 68 and 69: Judging from the candidates’ resp
Page 70 and 71: full credit. - Totals and sub-total
Page 72 and 73: 8.3 Examination assistants, under t
Page 74 and 75: Chapter 6 Report on the standardisa
Page 78 and 79: 5. Recommendations for 2005 6. Conc
Page 80 and 81: an improvement was observed in the
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