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 |
921134 |
2426 |
- |
2436 |
= |
-10 |
* |
(86 |
/ |
231)
|
= |
-3.72294372 |
| 4 |
921137 |
2417 |
- |
2485 |
= |
-68 |
* |
(64 |
/ |
231)
|
= |
-18.83982684 |
| 5 |
921138 |
2457 |
- |
2528 |
= |
-71 |
* |
(81 |
/ |
231)
|
= |
-24.89610385 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Lassen Elementary
|
-47 |
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 |
29120 |
2456 |
- |
2436 |
= |
20 |
* |
(72 |
/ |
230)
|
= |
6.26086956 |
| 4 |
29123 |
2451 |
- |
2485 |
= |
-34 |
* |
(91 |
/ |
230)
|
= |
-13.45217388 |
| 5 |
29125 |
2472 |
- |
2528 |
= |
-56 |
* |
(67 |
/ |
230)
|
= |
-16.31304343 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Lassen Elementary
|
-24 |
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 |
29686 |
2462 |
- |
2436 |
= |
26 |
* |
(76 |
/ |
226)
|
= |
8.74336281 |
| 4 |
29687 |
2455 |
- |
2485 |
= |
-30 |
* |
(66 |
/ |
226)
|
= |
-8.76106194 |
| 5 |
29689 |
2452 |
- |
2528 |
= |
-76 |
* |
(84 |
/ |
226)
|
= |
-28.24778754 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Lassen Elementary
|
-28 |
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 |
29735 |
2430 |
- |
2436 |
= |
-6 |
* |
(71 |
/ |
202)
|
= |
-2.10891089 |
| 4 |
29737 |
2470 |
- |
2485 |
= |
-15 |
* |
(68 |
/ |
202)
|
= |
-5.04950495 |
| 5 |
29739 |
2432 |
- |
2528 |
= |
-96 |
* |
(63 |
/ |
202)
|
= |
-29.94059405 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Lassen Elementary
|
-37 |
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 |
29910 |
2431 |
- |
2436 |
= |
-5 |
* |
(70 |
/ |
197)
|
= |
-1.77664975 |
| 4 |
29911 |
2444 |
- |
2485 |
= |
-41 |
* |
(66 |
/ |
197)
|
= |
-13.73604058 |
| 5 |
29912 |
2453 |
- |
2528 |
= |
-75 |
* |
(61 |
/ |
197)
|
= |
-23.22335025 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Lassen Elementary
|
-39 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-47
|
-24
|
-28
|
-37
|
-39
|
-175.0 |
-35.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -8.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -62.0
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:
