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 |
764490 |
2419 |
- |
2436 |
= |
-17 |
* |
(92 |
/ |
276)
|
= |
-5.66666666 |
4 |
764491 |
2471 |
- |
2485 |
= |
-14 |
* |
(94 |
/ |
276)
|
= |
-4.76811594 |
5 |
764494 |
2499 |
- |
2528 |
= |
-29 |
* |
(90 |
/ |
276)
|
= |
-9.45652172 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Bixby Elementary
|
-20 |
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 |
24014 |
2431 |
- |
2436 |
= |
-5 |
* |
(91 |
/ |
261)
|
= |
-1.74329502 |
4 |
24016 |
2486 |
- |
2485 |
= |
1 |
* |
(85 |
/ |
261)
|
= |
0.3256705 |
5 |
24019 |
2506 |
- |
2528 |
= |
-22 |
* |
(85 |
/ |
261)
|
= |
-7.16475096 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Bixby Elementary
|
-9 |
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 |
24516 |
2448 |
- |
2436 |
= |
12 |
* |
(81 |
/ |
248)
|
= |
3.91935484 |
4 |
24517 |
2493 |
- |
2485 |
= |
8 |
* |
(86 |
/ |
248)
|
= |
2.77419354 |
5 |
24520 |
2501 |
- |
2528 |
= |
-27 |
* |
(81 |
/ |
248)
|
= |
-8.81854838 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Bixby Elementary
|
-2 |
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 |
24539 |
2469 |
- |
2436 |
= |
33 |
* |
(58 |
/ |
225)
|
= |
8.50666664 |
4 |
24541 |
2508 |
- |
2485 |
= |
23 |
* |
(80 |
/ |
225)
|
= |
8.17777777 |
5 |
24543 |
2540 |
- |
2528 |
= |
12 |
* |
(87 |
/ |
225)
|
= |
4.63999999 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Bixby Elementary
|
21 |
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 |
24708 |
2450 |
- |
2436 |
= |
14 |
* |
(60 |
/ |
194)
|
= |
4.3298969 |
4 |
24709 |
2513 |
- |
2485 |
= |
28 |
* |
(65 |
/ |
194)
|
= |
9.38144329 |
5 |
24710 |
2561 |
- |
2528 |
= |
33 |
* |
(69 |
/ |
194)
|
= |
11.7371134 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Bixby Elementary
|
25 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-20
|
-9
|
-2
|
21
|
25
|
15.0 |
3.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 60.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -54.0
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: