ALIS Year 12 Presentation parents - WIS Portal

```Yr 12 Parents Forum:
ALIS data
West Island School
November 2012
ALIS
 Run by Centre for Evaluation and Monitoring @
Durham University.
 29 years worth of data.
 1.3 Million Students in CEM system
 About 10K students per year doing IB, mainly
international schools and UK independent schools.
Basic Principles of ALIS Data
Measure Student’s ability
Intake Profiles
IPR - Strengths and Weaknesses, provides valuable information to
support teaching and learning of individual students.
Project future performance from national trends
Chances Charts, target setting and subsequent monitoring.
We do not use to predict future grades for University or IB predictors.
Compare actual performance to Projected Performance
Value-Added Reports. Used to assess performance of our school.
ALIS : CABT Testing
 Assessed by a computer adaptive test that takes 1 hour
 Measures developed ability rather than taught curriculum
 No preparation is required for the test
 Components are
vocabulary (words and phrases)
maths (numeracy)
non-verbal (spatial/3d)
 School and students’ test performances are compared to students
around the word.
Questions get harder
when a the student
correctly, vice versa
Vocabulary
Maths
x/4 + 2
Non-Verbal: Cross-sections
Non-Verbal: Blocks
2
Non-Verbal: Pictures
Bands, percentiles, standardised scores…
Standardised to include:
25% of students in each band
50% between 90-110
Mean score 100
C
B
A
D
0
50
60
70
80
90
100
110
120
130
140
Standardised scores
Percentiles:
1
5
10
20
30 40 50 60 70
80
90
95
99
150
Intake profile for current Year 12 at WIS
Example IPRs: Average WIS student
Example IPR: low non verbal
Example IPR: high maths and NV future Engineer or Architect?
Example IPR: relatively high nonverbal
Example IPR: relatively low maths
Example IPR: reletively low nonverbal
Regression curves from past results used to make
predictions for future results
Regression Curves for HL Subjects: it is ‘easier’
to get a higher grade in some subjects
Sample Chances Charts
• The following charts show the percentage of students, who
achieved the same baseline score as your children, went on to
score a particular grade at IB.
• It is not meant to predict what grade your children will achieve, but
is an indication of how previous students of similar ability
performed in that subject.
• Two baselines are used. (LHS) Average GCSE score, (RHS) ALIS
(CABT) test score.
• The black line shows the average score achieved by students of
similar ability, this is shown as ‘predictions points’ in the table at the
top
Note: GCSE grades are converted into numbers A*=8, A=7, B=6, etc.
GCSE predictions similar to CABT test
predictions – as expected
GCSE predictions above CABT test
predictions – hard working student ?
GCSE predictions below CABT test predictions
– underperformed at GCSE?
```