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 |
333795 |
2369 |
- |
2436 |
= |
-67 |
* |
(114 |
/ |
403)
|
= |
-18.95285354 |
| 4 |
333796 |
2399 |
- |
2485 |
= |
-86 |
* |
(104 |
/ |
403)
|
= |
-22.19354838 |
| 5 |
333799 |
2434 |
- |
2528 |
= |
-94 |
* |
(110 |
/ |
403)
|
= |
-25.65756818 |
| 6 |
333800 |
2422 |
- |
2552 |
= |
-130 |
* |
(75 |
/ |
403)
|
= |
-24.19354834 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Wilson Elementary
|
-91 |
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 |
9960 |
2362 |
- |
2436 |
= |
-74 |
* |
(121 |
/ |
413)
|
= |
-21.68038739 |
| 4 |
9961 |
2414 |
- |
2485 |
= |
-71 |
* |
(113 |
/ |
413)
|
= |
-19.42615011 |
| 5 |
9964 |
2427 |
- |
2528 |
= |
-101 |
* |
(102 |
/ |
413)
|
= |
-24.94430987 |
| 6 |
9966 |
2407 |
- |
2552 |
= |
-145 |
* |
(77 |
/ |
413)
|
= |
-27.03389817 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Wilson Elementary
|
-93 |
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 |
10288 |
2387 |
- |
2436 |
= |
-49 |
* |
(113 |
/ |
419)
|
= |
-13.21479711 |
| 4 |
10290 |
2401 |
- |
2485 |
= |
-84 |
* |
(124 |
/ |
419)
|
= |
-24.85918848 |
| 5 |
10292 |
2438 |
- |
2528 |
= |
-90 |
* |
(107 |
/ |
419)
|
= |
-22.98329352 |
| 6 |
10294 |
2402 |
- |
2552 |
= |
-150 |
* |
(75 |
/ |
419)
|
= |
-26.84964195 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Wilson Elementary
|
-88 |
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 |
10305 |
2381 |
- |
2436 |
= |
-55 |
* |
(118 |
/ |
422)
|
= |
-15.37914692 |
| 4 |
10307 |
2430 |
- |
2485 |
= |
-55 |
* |
(111 |
/ |
422)
|
= |
-14.46682463 |
| 5 |
10309 |
2436 |
- |
2528 |
= |
-92 |
* |
(120 |
/ |
422)
|
= |
-26.16113739 |
| 6 |
10311 |
2403 |
- |
2552 |
= |
-149 |
* |
(73 |
/ |
422)
|
= |
-25.77488137 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Wilson Elementary
|
-82 |
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 |
10386 |
2391 |
- |
2436 |
= |
-45 |
* |
(109 |
/ |
394)
|
= |
-12.44923857 |
| 4 |
10387 |
2436 |
- |
2485 |
= |
-49 |
* |
(101 |
/ |
394)
|
= |
-12.56091367 |
| 5 |
10388 |
2450 |
- |
2528 |
= |
-78 |
* |
(106 |
/ |
394)
|
= |
-20.9847715 |
| 6 |
10389 |
2432 |
- |
2552 |
= |
-120 |
* |
(78 |
/ |
394)
|
= |
-23.75634516 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Wilson Elementary
|
-70 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-91
|
-93
|
-88
|
-82
|
-70
|
-424.0 |
-84.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -57.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -111.8
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:
