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 |
875915 |
2387 |
- |
2436 |
= |
-49 |
* |
(75 |
/ |
213)
|
= |
-17.25352112 |
| 4 |
875916 |
2412 |
- |
2485 |
= |
-73 |
* |
(61 |
/ |
213)
|
= |
-20.90610325 |
| 5 |
875919 |
2434 |
- |
2528 |
= |
-94 |
* |
(77 |
/ |
213)
|
= |
-33.98122062 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Blythe Street Elementary
|
-72 |
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 |
27713 |
2376 |
- |
2436 |
= |
-60 |
* |
(81 |
/ |
221)
|
= |
-21.99095022 |
| 4 |
27715 |
2389 |
- |
2485 |
= |
-96 |
* |
(72 |
/ |
221)
|
= |
-31.27601808 |
| 5 |
27717 |
2412 |
- |
2528 |
= |
-116 |
* |
(68 |
/ |
221)
|
= |
-35.69230761 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Blythe Street Elementary
|
-89 |
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 |
28284 |
2356 |
- |
2436 |
= |
-80 |
* |
(78 |
/ |
222)
|
= |
-28.10810808 |
| 4 |
28285 |
2419 |
- |
2485 |
= |
-66 |
* |
(77 |
/ |
222)
|
= |
-22.89189184 |
| 5 |
28287 |
2417 |
- |
2528 |
= |
-111 |
* |
(67 |
/ |
222)
|
= |
-33.49999991 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Blythe Street Elementary
|
-84 |
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 |
28335 |
2379 |
- |
2436 |
= |
-57 |
* |
(85 |
/ |
235)
|
= |
-20.61702124 |
| 4 |
28337 |
2402 |
- |
2485 |
= |
-83 |
* |
(77 |
/ |
235)
|
= |
-27.19574464 |
| 5 |
28339 |
2439 |
- |
2528 |
= |
-89 |
* |
(73 |
/ |
235)
|
= |
-27.64680843 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Blythe Street Elementary
|
-75 |
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 |
28514 |
2346 |
- |
2436 |
= |
-90 |
* |
(64 |
/ |
211)
|
= |
-27.29857815 |
| 4 |
28515 |
2440 |
- |
2485 |
= |
-45 |
* |
(75 |
/ |
211)
|
= |
-15.99526062 |
| 5 |
28516 |
2428 |
- |
2528 |
= |
-100 |
* |
(72 |
/ |
211)
|
= |
-34.1232227 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Blythe Street Elementary
|
-77 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-72
|
-89
|
-84
|
-75
|
-77
|
-397.0 |
-79.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -61.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -97.4
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:
