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 |
946557 |
2355 |
- |
2436 |
= |
-81 |
* |
(93 |
/ |
252)
|
= |
-29.89285714 |
| 4 |
946559 |
2397 |
- |
2485 |
= |
-88 |
* |
(83 |
/ |
252)
|
= |
-28.98412695 |
| 5 |
946560 |
2424 |
- |
2528 |
= |
-104 |
* |
(76 |
/ |
252)
|
= |
-31.3650793 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Purche Avenue Elementary
|
-90 |
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 |
29941 |
2369 |
- |
2436 |
= |
-67 |
* |
(89 |
/ |
262)
|
= |
-22.75954195 |
| 4 |
29943 |
2409 |
- |
2485 |
= |
-76 |
* |
(93 |
/ |
262)
|
= |
-26.97709923 |
| 5 |
29945 |
2431 |
- |
2528 |
= |
-97 |
* |
(80 |
/ |
262)
|
= |
-29.61832057 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Purche Avenue Elementary
|
-79 |
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 |
30506 |
2407 |
- |
2436 |
= |
-29 |
* |
(87 |
/ |
270)
|
= |
-9.34444444 |
| 4 |
30507 |
2409 |
- |
2485 |
= |
-76 |
* |
(86 |
/ |
270)
|
= |
-24.20740737 |
| 5 |
30509 |
2415 |
- |
2528 |
= |
-113 |
* |
(97 |
/ |
270)
|
= |
-40.59629627 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Purche Avenue Elementary
|
-74 |
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 |
30557 |
2387 |
- |
2436 |
= |
-49 |
* |
(57 |
/ |
218)
|
= |
-12.81192656 |
| 4 |
30559 |
2408 |
- |
2485 |
= |
-77 |
* |
(80 |
/ |
218)
|
= |
-28.25688073 |
| 5 |
30561 |
2443 |
- |
2528 |
= |
-85 |
* |
(81 |
/ |
218)
|
= |
-31.58256881 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Purche Avenue Elementary
|
-73 |
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 |
30732 |
2378 |
- |
2436 |
= |
-58 |
* |
(78 |
/ |
214)
|
= |
-21.1401869 |
| 4 |
30733 |
2429 |
- |
2485 |
= |
-56 |
* |
(56 |
/ |
214)
|
= |
-14.65420555 |
| 5 |
30734 |
2438 |
- |
2528 |
= |
-90 |
* |
(80 |
/ |
214)
|
= |
-33.64485975 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Purche Avenue Elementary
|
-69 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-90
|
-79
|
-74
|
-73
|
-69
|
-385.0 |
-77.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -53.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -101.0
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:
