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 |
2371038 |
2443 |
- |
2436 |
= |
7 |
* |
(66 |
/ |
175)
|
= |
2.64 |
| 4 |
2371041 |
2482 |
- |
2485 |
= |
-3 |
* |
(64 |
/ |
175)
|
= |
-1.09714286 |
| 5 |
2371042 |
2530 |
- |
2528 |
= |
2 |
* |
(45 |
/ |
175)
|
= |
0.51428571 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Parks (Rosa) Elementary
|
2 |
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 |
72427 |
2395 |
- |
2436 |
= |
-41 |
* |
(82 |
/ |
204)
|
= |
-16.48039214 |
| 4 |
72429 |
2491 |
- |
2485 |
= |
6 |
* |
(64 |
/ |
204)
|
= |
1.88235294 |
| 5 |
72432 |
2506 |
- |
2528 |
= |
-22 |
* |
(58 |
/ |
204)
|
= |
-6.25490195 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Parks (Rosa) Elementary
|
-21 |
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 |
74402 |
2437 |
- |
2436 |
= |
1 |
* |
(72 |
/ |
218)
|
= |
0.33027523 |
| 4 |
74403 |
2438 |
- |
2485 |
= |
-47 |
* |
(90 |
/ |
218)
|
= |
-19.40366969 |
| 5 |
74406 |
2520 |
- |
2528 |
= |
-8 |
* |
(56 |
/ |
218)
|
= |
-2.05504586 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Parks (Rosa) Elementary
|
-21 |
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 |
74576 |
2418 |
- |
2436 |
= |
-18 |
* |
(81 |
/ |
238)
|
= |
-6.12605041 |
| 4 |
74577 |
2456 |
- |
2485 |
= |
-29 |
* |
(77 |
/ |
238)
|
= |
-9.38235292 |
| 5 |
74580 |
2437 |
- |
2528 |
= |
-91 |
* |
(80 |
/ |
238)
|
= |
-30.58823522 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Parks (Rosa) Elementary
|
-46 |
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 |
75101 |
2427 |
- |
2436 |
= |
-9 |
* |
(80 |
/ |
231)
|
= |
-3.11688311 |
| 4 |
75102 |
2438 |
- |
2485 |
= |
-47 |
* |
(80 |
/ |
231)
|
= |
-16.27705626 |
| 5 |
75103 |
2473 |
- |
2528 |
= |
-55 |
* |
(71 |
/ |
231)
|
= |
-16.90476189 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Parks (Rosa) Elementary
|
-36 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
2
|
-21
|
-21
|
-46
|
-36
|
-122.0 |
-24.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 29.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -78.4
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:
