2015
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
2374533 |
2455 |
- |
2436 |
= |
19 |
* |
(96 |
/ |
291)
|
= |
6.26804123 |
| 4 |
2374534 |
2508 |
- |
2485 |
= |
23 |
* |
(98 |
/ |
291)
|
= |
7.74570446 |
| 5 |
2374537 |
2538 |
- |
2528 |
= |
10 |
* |
(97 |
/ |
291)
|
= |
3.33333333 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for West Portal Elementary
|
17 |
2016
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
72531 |
2460 |
- |
2436 |
= |
24 |
* |
(99 |
/ |
296)
|
= |
8.02702702 |
| 4 |
72533 |
2499 |
- |
2485 |
= |
14 |
* |
(98 |
/ |
296)
|
= |
4.63513513 |
| 5 |
72535 |
2543 |
- |
2528 |
= |
15 |
* |
(99 |
/ |
296)
|
= |
5.01689189 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for West Portal Elementary
|
18 |
2017
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
74506 |
2444 |
- |
2436 |
= |
8 |
* |
(96 |
/ |
291)
|
= |
2.63917526 |
| 4 |
74508 |
2508 |
- |
2485 |
= |
23 |
* |
(98 |
/ |
291)
|
= |
7.74570446 |
| 5 |
74509 |
2506 |
- |
2528 |
= |
-22 |
* |
(97 |
/ |
291)
|
= |
-7.33333333 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for West Portal Elementary
|
3 |
2018
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
74679 |
2467 |
- |
2436 |
= |
31 |
* |
(94 |
/ |
291)
|
= |
10.01374567 |
| 4 |
74682 |
2506 |
- |
2485 |
= |
21 |
* |
(98 |
/ |
291)
|
= |
7.07216494 |
| 5 |
74683 |
2544 |
- |
2528 |
= |
16 |
* |
(99 |
/ |
291)
|
= |
5.44329896 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for West Portal Elementary
|
23 |
2019
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
75205 |
2462 |
- |
2436 |
= |
26 |
* |
(99 |
/ |
291)
|
= |
8.84536081 |
| 4 |
75206 |
2522 |
- |
2485 |
= |
37 |
* |
(96 |
/ |
291)
|
= |
12.20618556 |
| 5 |
75207 |
2542 |
- |
2528 |
= |
14 |
* |
(96 |
/ |
291)
|
= |
4.6185567 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for West Portal Elementary
|
26 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
17
|
18
|
3
|
23
|
26
|
87.0 |
17.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 41.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -6.6
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
