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 |
939370 |
2450 |
- |
2436 |
= |
14 |
* |
(51 |
/ |
230)
|
= |
3.10434782 |
| 4 |
939371 |
2505 |
- |
2485 |
= |
20 |
* |
(59 |
/ |
230)
|
= |
5.13043478 |
| 5 |
939374 |
2518 |
- |
2528 |
= |
-10 |
* |
(64 |
/ |
230)
|
= |
-2.78260869 |
| 6 |
939375 |
2550 |
- |
2552 |
= |
-2 |
* |
(56 |
/ |
230)
|
= |
-0.48695652 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for One Hundred Fifty-Sixth Street Elementary
|
5 |
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 |
29714 |
2460 |
- |
2436 |
= |
24 |
* |
(53 |
/ |
213)
|
= |
5.97183098 |
| 4 |
29717 |
2517 |
- |
2485 |
= |
32 |
* |
(43 |
/ |
213)
|
= |
6.46009389 |
| 5 |
29718 |
2518 |
- |
2528 |
= |
-10 |
* |
(61 |
/ |
213)
|
= |
-2.86384976 |
| 6 |
29721 |
2554 |
- |
2552 |
= |
2 |
* |
(56 |
/ |
213)
|
= |
0.5258216 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for One Hundred Fifty-Sixth Street Elementary
|
10 |
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 |
30279 |
2460 |
- |
2436 |
= |
24 |
* |
(52 |
/ |
198)
|
= |
6.30303029 |
| 4 |
30281 |
2503 |
- |
2485 |
= |
18 |
* |
(54 |
/ |
198)
|
= |
4.9090909 |
| 5 |
30283 |
2522 |
- |
2528 |
= |
-6 |
* |
(42 |
/ |
198)
|
= |
-1.27272727 |
| 6 |
30285 |
2564 |
- |
2552 |
= |
12 |
* |
(50 |
/ |
198)
|
= |
3.03030302 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for One Hundred Fifty-Sixth Street Elementary
|
13 |
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 |
30329 |
2452 |
- |
2436 |
= |
16 |
* |
(50 |
/ |
195)
|
= |
4.1025641 |
| 4 |
30331 |
2508 |
- |
2485 |
= |
23 |
* |
(52 |
/ |
195)
|
= |
6.13333332 |
| 5 |
30333 |
2528 |
- |
2528 |
= |
0 |
* |
(51 |
/ |
195)
|
= |
0.0 |
| 6 |
30335 |
2561 |
- |
2552 |
= |
9 |
* |
(42 |
/ |
195)
|
= |
1.93846154 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for One Hundred Fifty-Sixth Street Elementary
|
12 |
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 |
30503 |
2438 |
- |
2436 |
= |
2 |
* |
(47 |
/ |
187)
|
= |
0.5026738 |
| 4 |
30504 |
2513 |
- |
2485 |
= |
28 |
* |
(49 |
/ |
187)
|
= |
7.33689838 |
| 5 |
30505 |
2527 |
- |
2528 |
= |
-1 |
* |
(54 |
/ |
187)
|
= |
-0.28877005 |
| 6 |
30506 |
2552 |
- |
2552 |
= |
0 |
* |
(37 |
/ |
187)
|
= |
0.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for One Hundred Fifty-Sixth Street Elementary
|
8 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
5
|
10
|
13
|
12
|
8
|
48.0 |
9.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 18.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 0.6
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:
