Secondary Schools (KS3) Achievement and Attainment Tables 2006
This is a breif guide to understanding the achievement and attainment Tables and the value added score assigned to the key stage 3 results.
Please refer to the DCSF website (off site link) for the full explanations and diagrams
How to read the Performance Tables (KS3)
The Secondary School (Key Stage 3) Achievement and Attainment Tables give more than one measure of a school's performance. These measures can be considered
alongside each other when evaluating the performance of a school.
The Tables show:

The total number of children with a statement and % figure (SAP)

The total number of children on School Action and % figure (SA)

The % figure of children reaching L5+ and L6+ in English, Maths and Science

A/T is the number of children absent or unable to access the tests.

The LA average and England average can be used to form an opinion of the success of the school, in conjunction with looking at the value the school has added to the
performance of the children.
How to read value added (VA) table

An average point score is calculated for each pupils key stage 2 results in English, Maths and Science.

The same average point score for each child is calculated from the Key stage 3 results.

A median Key stage 3 value is created by comparing the performance of other pupils nationally who received similar or the same key stage 2 scores.

The value added score is the difference between the key stage 3 result and the national mediun Key stage 3 result.

The example below is a school with 4 pupils
Pupil Pupil's KS2 average point score Pupil's KS3 average point score Median KS3 average point score for their KS2 average point score Pupil's VA score
A
25
36
31
+5
B
25
29
31
-2
C
27
35
35
0
D
27
37
35
+2
Total of all individual value added scores
School's value added measure
= +5
+5 (the total) divided by 4 (the number of
pupils)
= 1.25
The school's value added measure will be presented as a measure based around 100. This is done by adding 100 to the score. The school in the above example would be
shown as:
101.3 (rounded to one decimal place)
Key Stage 3 Test Results 2006
Pupils eiligible for KS3 assessment with SEN
Total with statements or supported at SAP
Number
supported at SA
%
Number
%
English
Mathematics
Science
Average Point Score
L5+ L6+ A/T L5+ L6+ A/T L5+ L6+ A/T
LA Average
6.8%
9.2%
80% 39%
81% 64%
80% 50%
36.3
England
Average
8.8%
11.2%
73% 34%
77% 57%
72% 41%
35.0
Denefield
School
215
7
3.3%
14
6.5%
74% 28% 6% 78% 51% 5% 68% 33% 5% 34.6
The Downs
School
153
14
9.2%
7
4.6%
84% 50% 2% 82% 67% 2% 86% 63% 1% 37.5
John O'Gaunt
Community
95
Technology
College
6
6.3%
13
13.7%
67% 24% 2% 80% 49% 0% 91% 58% 0% 35.2
Kennet School 300
16
5.3%
22
7.3%
78% 28% 5% 84% 72% 2% 82% 51% 4% 36.8
4
1.5%
8
3.1%
86% 46% 2% 85% 74% 2% 84% 61% 1% 37.4
Park House
School and 223
Sports College
14
6.3%
13
5.8%
87% 43% 3% 82% 68% 3% 84% 55% 3% 37.1
St
Bartholomew's 299
School
12
4.0%
23
7.7%
93% 59% 2% 92% 77% 1% 91% 61% 2% 38.9
Theale Green
Community 226
School
17
7.5%
47
20.8%
79% 44% 4% 82% 62% 2% 83% 54% 2% 36.8
Trinity School 189
16
8.5%
29
15.3%
78% 28% 8% 69% 40% 2% 63% 29% 3% 33.6
5
3.2%
22
14.0%
76% 39% 1% 80% 66% 1% 81% 46% 2% 36.1
Little Heath
School
The Willink
School
260
157
Special
Schools
Brookfields
25
Special School
The Castle
School
10
0% 0% 0% 0% 0% 0% 0% 0% 0% 17.0
0% 0% 0% 0% 0% 0% 0% 0% 0% 17.8
KS2 to KS3 Value Added 2006
LA Average
Measure
Coverage
VA score based on progress
between KS2 and KS3
% of eligible pupils
included in VA calculation
100.6
England Average
Denefield School
99.9
94%
The Downs School
100.8
96%
John O'Gaunt Community
Technology College
101.4
97%
Kennet School
100.5
95%
Little Heath School
100.7
97%
Park House School and Sports
College
101.0
95%
St Bartholomew's School
100.9
93%
Theale Green Community School
100.6
96%
Trinity School
100.6
97%
The Willink School
99.8
96%
Special Schools
Brookfields Special School
The Castle School
99.8
92%
This is a breif guide to understanding the contextual value added score assigned to the key stage 4 results.
Please refer to the DCSF website (off site link) for the full explanations and diagrams
What is CVA ?
What do we mean by contextual value added?

CVA is not very different from simple VA. The basic principle of measuring progress from the KS2 test to qualifications attained at KS4 remains the same.

A number of other factors which are outside a school's control, such as gender, special educational needs, movement between schools, and family circumstances, are
also known to affect pupils' performance.

CVA takes these factors into account to give a much fairer measure of the effectiveness of a school. That means that comparisons against other schools are more
meaningful, for example, when comparing the performance of a school in a leafy suburb against the performance of one in an inner city area - both of which might face
quite different challenges.
Contextual Value Added scores

Each pupil's CVA score is based on a comparison between their best eight results at GCSE - and the typical performance of pupils with similar characteristics and
similar results at KS2.

If their GCSE (and equivalent) results are better than the average achieved by similar pupils, the CVA will be positive; if they do less well, it will be negative.

All individual pupil scores, positive and negative, are added together and an average produced for the school.

That average is then adjusted to account for the amount of pupils in the year group to give the school level CVA score.

This score is then presented as a number based around 1000. This indicates the value the school has added on average for its pupils, given what is known about the
circumstances of its pupil intake.
Interpretation of a school's CVA score
The CVA section shows, for each school:

The KS2-KS4 CVA score. The CVA measure is shown as a score based around 1000. Scores above 1000 represent schools where pupils on average made more
progress than similar pupils nationally, while scores below 1000 represent schools where pupils made less progress.

The upper and lower limits of a 95% confidence interval;

A coverage indicator; (The coverage indicator shows the percentage of pupils at the end of KS4 included in the CVA calculation.) and

The average number of qualifications taken by pupils included in the CVA calculation.
A measure of 1006 means that on average each of the school's pupils achieved the equivalent of one GCSE grade higher in one subject than the average attained by similar
pupils.
A score of 1048 means that on average each pupil achieved one GCSE grade higher in each of their best eight subjects than the average attained by similar pupils.
A score of 994 means that the school's pupils achieved one grade lower in one subject on average, while A score of 952 means that pupils achieved on average one grade
lower in each of their best eight subjects.
Confidence Intervals

A degree of uncertainty should be taken into account if interpreting the figures as estimates of a school's effectiveness.

The uncertainty of a CVA score as a measure of school effectiveness can be presented as a confidence interval.

This is a range of scores within which we can be statistically confident that the "true" school effectiveness will lie.

The CVA methodology produces a 95% confidence interval (CI) to show the range within which we can be confident the CVA measure represents the overall
effectiveness of a school at KS4. If a school cohort is large the width of the CI will be small, but if a school cohort is small the CI will be wide.

A school level CVA measure must always be interpreted alongside the confidence interval.

Schools where the lower limit of the CI is above 1000 represent schools where pupils on average made significantly more progress than pupils nationally.

Schools where the upper limit of the CI is below 1000 represent schools where pupils made significantly less progress. Examples are given in the box below.
Key Stage 4 results 2006
Cohort Information
% of pupils
at the end of
KS4
Number of
pupils at
the end of aged
aged
KS4
14 or
15
less
LA Average
England
Average
Results of KS4 pupils
with SEN, with
statements or
supported at SAP
Number
%
with SEN,
supported at
SA
Number
% of pupils achieving
5 or more
grades A*-C
including
English and
maths
%
Level 2 in
functional
English and
maths
Average total
point score per
pupil
Level 1 in Level 2 (5 Level 1 (5
functional
or more or more at least one
English and grades
grades qualification
maths
A*-C)
A*-G)
126
6.3%
167
8.4%
51.6%
52.3%
96.3%
65.0%
94.8%
99.4%
389.1
51459
8.0%
59034
9.1%
45.8%
48.2%
90.6%
59.2%
90.5%
97.8%
365.0
0
0.0%
0
0.0%
97%
98%
100%
100%
100%
100%
445.2
Bradfield
College
95
N/A
N/A
Denefield
206
0%
100% 11
5.3%
12
5.8%
42%
42%
96%
64%
92%
99%
382.1
N/A
N/A
0
0.0%
0
0.0%
99%
100%
100%
100%
100%
100%
555.8
Downe House
84
School
The Downs
151
0%
99%
5
3.3%
12
7.9%
57%
58%
100%
68%
94%
100%
382.0
John O’Gaunt
110
0%
97%
6
5.5%
7
6.4%
37%
37%
96%
49%
95%
99%
356.7
Kennet School 267
0%
100% 16
6.0%
14
5.2%
60%
61%
99%
70%
100%
100%
388.4
Little Heath
252
0%
99%
19
7.5%
34
13.5% 54%
55%
98%
74%
99%
100%
412.5
Padworth
College
9
N/A
N/A
0
0.0%
0
0.0%
0%
0%
0%
11%
11%
56%
95.1
Pangbourne
College
71
N/A
N/A
0
0.0%
0
0.0%
68%
70%
93%
80%
100%
100%
423.6
Park House
220
1%
96%
13
5.9%
9
4.1%
51%
51%
95%
65%
91%
99%
368.5
Priors Court
School
5
N/A
N/A
5
100.0%
0
0.0%
-
-
-
-
-
-
-
St. Barts
235
0%
99%
5
2.1%
29
12.3% 65%
65%
100%
75%
96%
100%
466.9
St Gabriel's
School
55
N/A
N/A
0
0.0%
0
0.0%
95%
95%
100%
98%
100%
100%
482.5
Theale Green
222
0%
99%
14
6.3%
32
14.4% 51%
51%
99%
69%
99%
100%
412.3
Trinity School 160
0%
99%
15
9.4%
7
4.4%
40%
45%
86%
48%
89%
98%
325.0
156
1%
99%
4
2.6%
11
7.1%
49%
49%
99%
57%
99%
100%
370.0
Brookfields
13
0%
100%
0%
0%
0%
0%
0%
100%
75.8
The Castle
School
5
0%
100%
0%
0%
0%
0%
0%
60%
63.2
Mary Hare
30
0%
90%
67%
67%
97%
83%
97%
100%
381.2
The Willink
Special
Schools
KS2-KS4 Contextual Value Added 2006
Limit of KS2-KS4 CVA
Confidence Intervals
Measure centred on 1000
CVA measure based on
progress between KS2 and
KS4
Upper
Lower
Coverage
Number of qualifications
% of pupils at the end of
KS4 included in CVA
calculation
Average number of qualifications
taken by pupils in KS2-KS4 VA
calculation
LA Average
England Average
1007.4
Bradfield College
N/A
N/A
N/A
N/A
N/A
Denefield School
1001.4
1010.1
992.6
98%
10.2
N/A
N/A
N/A
N/A
N/A
1000.1
1010.3
989.8
95%
9.1
John O'Gaunt Community
1002.4
Technology College
1014.1
990.6
96%
10.0
Downe House School
The Downs School
Kennet School
1020.9
1028.7
1013.2
97%
9.4
Little Heath School
1004.8
1012.7
996.8
98%
10.4
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1008.1
1016.8
999.4
94%
8.9
-
-
-
-
-
1022.2
1005.5
95%
10.9
N/A
N/A
N/A
N/A
1021.0
1003.9
96%
10.6
985.6
1004.3
995.5
1014.5
975.6
994.2
96%
94%
9.0
9.4
Brookfields Special School 1036.3
The Castle School
1020.3
Mary Hare Grammar
1223.4
School
1057.5
1015.0
92%
6.2
1051.6
988.9
100%
3.4
1239.1
1207.8
77%
8.9
Padworth College
Pangbourne College
Park House School and
Sports College
Priors Court School
St Bartholomew's School 1013.8
St Gabriel's School
N/A
Theale Green Community
1012.4
School
Trinity School
The Willink School
Special Schools