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# GUIDELINES FOR CALCULATING A SCHOOL SES SCORE by alendar

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GUIDELINES FOR CALCULATING A SCHOOL SES SCORE

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```									             GUIDELINES FOR CALCULATING A SCHOOL SES SCORE
Under section 8 of the Schools Assistance (Learning Together – Achievement Through Choice and Opportunity)
Act 2004 (the Act), the Guidelines for Calculating a School SES Score are a legislative instrument for the
purposes of the Legislative Instruments Act 2003.

PART 1. Schools other than Special Assistance Schools and Special Schools

SES Index
The SES Index, from which the SES scores for Census Collection Districts (CDs) are derived, comprises the
following dimensions - Occupation, Education and Income [½ Household Income / ½ Family (with children)
Income]. Where a complete set of the four dimensions is not available (for 2001 Census - about 3% of over
37,000 CDs in Australia), because the Australian Bureau of Statistics (ABS) does not release data which could
be used to identify an individual, some CDs do not have a CD SES score. [The table below shows a school
SES score calculated using CDs with missing dimensions.] If these CDs were omitted altogether from the
calculation of the school SES score, the score would not be truly representative of the school community and

School SES Score
In order that every geocoded address contributes to the school SES score, the score will be based on the four
individual dimensions for each CD and averaged by the number of addresses for which a dimension score
exists. The school SES score will then be calculated from the average of each dimension. A practical example
of how a school SES score will be calculated is shown in the table below.

Methodology for calculating a School SES Score

1. Calculate to 4 decimal places the average value for each of the Occupation, Education, Household Income
and Family Income dimensions.
Note:   - the total for a dimension is averaged only by the number of addresses containing data for that
dimension; and
- if an address has not been geocoded and assigned to a CD, that address will not be included in
the calculation.

2. Calculate the School SES score to 4 decimal places using the following formula :

School SES Score =

Occupation dimension / 3 + Education dimension / 3 +
Household Income dimension / 6 + Income of Families
with Children dimension / 6

3. A School SES score is rounded to a whole number.
For example:     95.4567 is rounded to 95
95.5123 is rounded to 96.

Calculating a School SES Score
Household    Family Income
Occupation        Education
SRN            Address              CD                                            Income       with Children
Dimension         Dimension
Dimension      Dimension
1      5 Smooth St Curlcurl     2587415
140.2584         126.6541       132.2541        131.8956
NSW 2000
2      4 Rough St Flattown      2587416
69.0125           78.2569
NSW 2000
3      7 Wavy St Ziptown        2587345
58.2143       85.2569
NSW 2000
4      2 Red St Red Town
NSW 2000
5      1 Flat Street Flattown   2587417
51.2698           25.1587                       41.3658
NSW 2000
Average Value of Dimension                   86.8469           72.0710      108.7555         86.6307
Occupation dimension/3 + Education dimension/3 +
85.5371
Household Income dimension/6 + Income of Families with Children dimension/6
School SES Score (rounded)            86
-2-

PART 2. Special Assistance Schools and Special Schools
The SES score for Special Assistance Schools and Special Schools can be calculated by ascertaining the score
that, for the purpose of the Tables in Parts 1 and 2 of Schedule 4 of the Act, has an associated current funding
level of 70 per cent of Average Government School Recurrent Costs (AGSRC).

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