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 |
777287 |
2398 |
- |
2436 |
= |
-38 |
* |
(114 |
/ |
351)
|
= |
-12.34188031 |
4 |
777290 |
2431 |
- |
2485 |
= |
-54 |
* |
(100 |
/ |
351)
|
= |
-15.38461534 |
5 |
777291 |
2449 |
- |
2528 |
= |
-79 |
* |
(137 |
/ |
351)
|
= |
-30.83475781 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Stevenson Elementary
|
-59 |
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 |
24357 |
2413 |
- |
2436 |
= |
-23 |
* |
(105 |
/ |
303)
|
= |
-7.97029702 |
4 |
24359 |
2442 |
- |
2485 |
= |
-43 |
* |
(96 |
/ |
303)
|
= |
-13.62376237 |
5 |
24360 |
2454 |
- |
2528 |
= |
-74 |
* |
(102 |
/ |
303)
|
= |
-24.91089106 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Stevenson Elementary
|
-47 |
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 |
24857 |
2439 |
- |
2436 |
= |
3 |
* |
(99 |
/ |
276)
|
= |
1.07608696 |
4 |
24860 |
2458 |
- |
2485 |
= |
-27 |
* |
(86 |
/ |
276)
|
= |
-8.41304345 |
5 |
24861 |
2457 |
- |
2528 |
= |
-71 |
* |
(91 |
/ |
276)
|
= |
-23.40942022 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Stevenson Elementary
|
-31 |
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 |
24880 |
2424 |
- |
2436 |
= |
-12 |
* |
(107 |
/ |
288)
|
= |
-4.45833332 |
4 |
24883 |
2472 |
- |
2485 |
= |
-13 |
* |
(96 |
/ |
288)
|
= |
-4.33333333 |
5 |
24884 |
2491 |
- |
2528 |
= |
-37 |
* |
(85 |
/ |
288)
|
= |
-10.92013886 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Stevenson Elementary
|
-20 |
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 |
25050 |
2448 |
- |
2436 |
= |
12 |
* |
(105 |
/ |
299)
|
= |
4.21404682 |
4 |
25051 |
2487 |
- |
2485 |
= |
2 |
* |
(98 |
/ |
299)
|
= |
0.65551839 |
5 |
25052 |
2496 |
- |
2528 |
= |
-32 |
* |
(96 |
/ |
299)
|
= |
-10.27424749 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Stevenson Elementary
|
-5 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-59
|
-47
|
-31
|
-20
|
-5
|
-162.0 |
-32.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 30.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -95.4
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: