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 |
2252298 |
2380 |
- |
2436 |
= |
-56 |
* |
(131 |
/ |
348)
|
= |
-21.08045974 |
| 4 |
2252299 |
2422 |
- |
2485 |
= |
-63 |
* |
(114 |
/ |
348)
|
= |
-20.63793098 |
| 5 |
2252302 |
2447 |
- |
2528 |
= |
-81 |
* |
(103 |
/ |
348)
|
= |
-23.97413789 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Fay Elementary
|
-66 |
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 |
69121 |
2410 |
- |
2436 |
= |
-26 |
* |
(110 |
/ |
334)
|
= |
-8.56287424 |
| 4 |
69124 |
2429 |
- |
2485 |
= |
-56 |
* |
(119 |
/ |
334)
|
= |
-19.9520958 |
| 5 |
69125 |
2438 |
- |
2528 |
= |
-90 |
* |
(105 |
/ |
334)
|
= |
-28.29341313 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Fay Elementary
|
-57 |
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 |
70955 |
2409 |
- |
2436 |
= |
-27 |
* |
(116 |
/ |
331)
|
= |
-9.46223564 |
| 4 |
70956 |
2416 |
- |
2485 |
= |
-69 |
* |
(104 |
/ |
331)
|
= |
-21.67975826 |
| 5 |
70958 |
2464 |
- |
2528 |
= |
-64 |
* |
(111 |
/ |
331)
|
= |
-21.46223565 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Fay Elementary
|
-53 |
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 |
71099 |
2402 |
- |
2436 |
= |
-34 |
* |
(91 |
/ |
314)
|
= |
-9.85350318 |
| 4 |
71102 |
2433 |
- |
2485 |
= |
-52 |
* |
(116 |
/ |
314)
|
= |
-19.21019105 |
| 5 |
71103 |
2461 |
- |
2528 |
= |
-67 |
* |
(107 |
/ |
314)
|
= |
-22.83121018 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Fay Elementary
|
-52 |
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 |
71587 |
2398 |
- |
2436 |
= |
-38 |
* |
(91 |
/ |
287)
|
= |
-12.04878046 |
| 4 |
71588 |
2422 |
- |
2485 |
= |
-63 |
* |
(88 |
/ |
287)
|
= |
-19.31707317 |
| 5 |
71589 |
2466 |
- |
2528 |
= |
-62 |
* |
(108 |
/ |
287)
|
= |
-23.33101044 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Fay Elementary
|
-55 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-66
|
-57
|
-53
|
-52
|
-55
|
-283.0 |
-56.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -41.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -71.6
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:
