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 |
799956 |
2396 |
- |
2436 |
= |
-40 |
* |
(91 |
/ |
293)
|
= |
-12.42320816 |
| 4 |
799959 |
2439 |
- |
2485 |
= |
-46 |
* |
(104 |
/ |
293)
|
= |
-16.32764503 |
| 5 |
799960 |
2452 |
- |
2528 |
= |
-76 |
* |
(98 |
/ |
293)
|
= |
-25.41979516 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Madison Elementary
|
-54 |
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 |
25012 |
2409 |
- |
2436 |
= |
-27 |
* |
(90 |
/ |
287)
|
= |
-8.46689895 |
| 4 |
25015 |
2442 |
- |
2485 |
= |
-43 |
* |
(94 |
/ |
287)
|
= |
-14.08362368 |
| 5 |
25017 |
2464 |
- |
2528 |
= |
-64 |
* |
(103 |
/ |
287)
|
= |
-22.96864109 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Madison Elementary
|
-46 |
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 |
25510 |
2420 |
- |
2436 |
= |
-16 |
* |
(102 |
/ |
283)
|
= |
-5.76678445 |
| 4 |
25512 |
2463 |
- |
2485 |
= |
-22 |
* |
(95 |
/ |
283)
|
= |
-7.38515899 |
| 5 |
25513 |
2456 |
- |
2528 |
= |
-72 |
* |
(86 |
/ |
283)
|
= |
-21.8798586 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Madison Elementary
|
-35 |
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 |
25537 |
2428 |
- |
2436 |
= |
-8 |
* |
(101 |
/ |
284)
|
= |
-2.84507042 |
| 4 |
25539 |
2482 |
- |
2485 |
= |
-3 |
* |
(96 |
/ |
284)
|
= |
-1.01408451 |
| 5 |
25540 |
2477 |
- |
2528 |
= |
-51 |
* |
(87 |
/ |
284)
|
= |
-15.62323943 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Madison Elementary
|
-19 |
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 |
25698 |
2431 |
- |
2436 |
= |
-5 |
* |
(88 |
/ |
288)
|
= |
-1.52777778 |
| 4 |
25699 |
2472 |
- |
2485 |
= |
-13 |
* |
(103 |
/ |
288)
|
= |
-4.64930554 |
| 5 |
25700 |
2479 |
- |
2528 |
= |
-49 |
* |
(97 |
/ |
288)
|
= |
-16.5034722 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Madison Elementary
|
-23 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-54
|
-46
|
-35
|
-19
|
-23
|
-177.0 |
-35.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 6.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -77.4
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:
