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 |
89440 |
2377 |
- |
2436 |
= |
-59 |
* |
(54 |
/ |
157)
|
= |
-20.2929936 |
| 4 |
89441 |
2429 |
- |
2485 |
= |
-56 |
* |
(55 |
/ |
157)
|
= |
-19.61783438 |
| 5 |
89444 |
2432 |
- |
2528 |
= |
-96 |
* |
(48 |
/ |
157)
|
= |
-29.35031846 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Grass Valley Elementary
|
-69 |
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 |
2508 |
2384 |
- |
2436 |
= |
-52 |
* |
(28 |
/ |
124)
|
= |
-11.74193545 |
| 4 |
2509 |
2427 |
- |
2485 |
= |
-58 |
* |
(49 |
/ |
124)
|
= |
-22.91935482 |
| 5 |
2511 |
2440 |
- |
2528 |
= |
-88 |
* |
(47 |
/ |
124)
|
= |
-33.3548387 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Grass Valley Elementary
|
-68 |
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 |
2580 |
2418 |
- |
2436 |
= |
-18 |
* |
(35 |
/ |
99)
|
= |
-6.36363635 |
| 4 |
2582 |
2444 |
- |
2485 |
= |
-41 |
* |
(21 |
/ |
99)
|
= |
-8.69696969 |
| 5 |
2583 |
2436 |
- |
2528 |
= |
-92 |
* |
(43 |
/ |
99)
|
= |
-39.95959593 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Grass Valley Elementary
|
-55 |
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 |
2583 |
2392 |
- |
2436 |
= |
-44 |
* |
(40 |
/ |
98)
|
= |
-17.95918366 |
| 4 |
2586 |
2423 |
- |
2485 |
= |
-62 |
* |
(32 |
/ |
98)
|
= |
-20.24489794 |
| 5 |
2587 |
2472 |
- |
2528 |
= |
-56 |
* |
(26 |
/ |
98)
|
= |
-14.85714283 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Grass Valley Elementary
|
-53 |
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 |
2605 |
2371 |
- |
2436 |
= |
-65 |
* |
(51 |
/ |
118)
|
= |
-28.09322029 |
| 4 |
2606 |
2392 |
- |
2485 |
= |
-93 |
* |
(36 |
/ |
118)
|
= |
-28.37288129 |
| 5 |
2607 |
2415 |
- |
2528 |
= |
-113 |
* |
(31 |
/ |
118)
|
= |
-29.68644063 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Grass Valley Elementary
|
-86 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-69
|
-68
|
-55
|
-53
|
-86
|
-331.0 |
-66.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -27.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -105.2
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:
