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 |
2367524 |
2385 |
- |
2436 |
= |
-51 |
* |
(42 |
/ |
139)
|
= |
-15.41007192 |
| 4 |
2367526 |
2426 |
- |
2485 |
= |
-59 |
* |
(57 |
/ |
139)
|
= |
-24.19424458 |
| 5 |
2367527 |
2467 |
- |
2528 |
= |
-61 |
* |
(40 |
/ |
139)
|
= |
-17.55395682 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Serra (Junipero) Elementary
|
-57 |
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 |
72328 |
2469 |
- |
2436 |
= |
33 |
* |
(63 |
/ |
160)
|
= |
12.99375 |
| 4 |
72329 |
2490 |
- |
2485 |
= |
5 |
* |
(40 |
/ |
160)
|
= |
1.25 |
| 5 |
72332 |
2465 |
- |
2528 |
= |
-63 |
* |
(57 |
/ |
160)
|
= |
-22.44375 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Serra (Junipero) Elementary
|
-8 |
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 |
74301 |
2440 |
- |
2436 |
= |
4 |
* |
(41 |
/ |
137)
|
= |
1.19708029 |
| 4 |
74304 |
2464 |
- |
2485 |
= |
-21 |
* |
(58 |
/ |
137)
|
= |
-8.89051094 |
| 5 |
74306 |
2470 |
- |
2528 |
= |
-58 |
* |
(38 |
/ |
137)
|
= |
-16.0875912 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Serra (Junipero) Elementary
|
-24 |
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 |
74476 |
2429 |
- |
2436 |
= |
-7 |
* |
(45 |
/ |
133)
|
= |
-2.36842105 |
| 4 |
74477 |
2447 |
- |
2485 |
= |
-38 |
* |
(37 |
/ |
133)
|
= |
-10.57142854 |
| 5 |
74480 |
2491 |
- |
2528 |
= |
-37 |
* |
(51 |
/ |
133)
|
= |
-14.1879699 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Serra (Junipero) Elementary
|
-27 |
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 |
74999 |
2427 |
- |
2436 |
= |
-9 |
* |
(43 |
/ |
125)
|
= |
-3.096 |
| 4 |
75000 |
2417 |
- |
2485 |
= |
-68 |
* |
(47 |
/ |
125)
|
= |
-25.568 |
| 5 |
75001 |
2473 |
- |
2528 |
= |
-55 |
* |
(35 |
/ |
125)
|
= |
-15.4 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Serra (Junipero) Elementary
|
-44 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-57
|
-8
|
-24
|
-27
|
-44
|
-160.0 |
-32.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 22.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -86.0
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:
