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 |
2369465 |
2411 |
- |
2436 |
= |
-25 |
* |
(44 |
/ |
133)
|
= |
-8.27067668 |
| 4 |
2369468 |
2450 |
- |
2485 |
= |
-35 |
* |
(48 |
/ |
133)
|
= |
-12.63157893 |
| 5 |
2369469 |
2469 |
- |
2528 |
= |
-59 |
* |
(41 |
/ |
133)
|
= |
-18.18796988 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Marshall Elementary
|
-39 |
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 |
72382 |
2404 |
- |
2436 |
= |
-32 |
* |
(35 |
/ |
114)
|
= |
-9.82456138 |
| 4 |
72384 |
2428 |
- |
2485 |
= |
-57 |
* |
(38 |
/ |
114)
|
= |
-18.99999998 |
| 5 |
72386 |
2479 |
- |
2528 |
= |
-49 |
* |
(41 |
/ |
114)
|
= |
-17.62280698 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Marshall 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 |
74356 |
2405 |
- |
2436 |
= |
-31 |
* |
(38 |
/ |
117)
|
= |
-10.06837604 |
| 4 |
74358 |
2423 |
- |
2485 |
= |
-62 |
* |
(41 |
/ |
117)
|
= |
-21.7264957 |
| 5 |
74360 |
2445 |
- |
2528 |
= |
-83 |
* |
(38 |
/ |
117)
|
= |
-26.95726489 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Marshall Elementary
|
-59 |
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 |
74529 |
2402 |
- |
2436 |
= |
-34 |
* |
(37 |
/ |
119)
|
= |
-10.57142855 |
| 4 |
74532 |
2445 |
- |
2485 |
= |
-40 |
* |
(43 |
/ |
119)
|
= |
-14.45378148 |
| 5 |
74533 |
2420 |
- |
2528 |
= |
-108 |
* |
(39 |
/ |
119)
|
= |
-35.39495794 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Marshall Elementary
|
-60 |
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 |
75055 |
2376 |
- |
2436 |
= |
-60 |
* |
(37 |
/ |
110)
|
= |
-20.18181816 |
| 4 |
75056 |
2424 |
- |
2485 |
= |
-61 |
* |
(35 |
/ |
110)
|
= |
-19.4090909 |
| 5 |
75057 |
2457 |
- |
2528 |
= |
-71 |
* |
(38 |
/ |
110)
|
= |
-24.5272727 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Marshall Elementary
|
-64 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-39
|
-46
|
-59
|
-60
|
-64
|
-268.0 |
-53.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -23.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -83.6
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:
