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 |
969925 |
2402 |
- |
2436 |
= |
-34 |
* |
(35 |
/ |
117)
|
= |
-10.17094017 |
4 |
969926 |
2481 |
- |
2485 |
= |
-4 |
* |
(41 |
/ |
117)
|
= |
-1.4017094 |
5 |
969929 |
2446 |
- |
2528 |
= |
-82 |
* |
(41 |
/ |
117)
|
= |
-28.7350427 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Van Ness Avenue Elementary
|
-40 |
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 |
30687 |
2416 |
- |
2436 |
= |
-20 |
* |
(35 |
/ |
101)
|
= |
-6.93069306 |
4 |
30688 |
2471 |
- |
2485 |
= |
-14 |
* |
(29 |
/ |
101)
|
= |
-4.01980197 |
5 |
30691 |
2497 |
- |
2528 |
= |
-31 |
* |
(37 |
/ |
101)
|
= |
-11.35643562 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Van Ness Avenue Elementary
|
-22 |
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 |
31252 |
2438 |
- |
2436 |
= |
2 |
* |
(41 |
/ |
106)
|
= |
0.7735849 |
4 |
31254 |
2461 |
- |
2485 |
= |
-24 |
* |
(36 |
/ |
106)
|
= |
-8.15094338 |
5 |
31256 |
2487 |
- |
2528 |
= |
-41 |
* |
(29 |
/ |
106)
|
= |
-11.21698111 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Van Ness Avenue Elementary
|
-19 |
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 |
31299 |
2446 |
- |
2436 |
= |
10 |
* |
(24 |
/ |
88)
|
= |
2.72727272 |
4 |
31301 |
2493 |
- |
2485 |
= |
8 |
* |
(37 |
/ |
88)
|
= |
3.36363636 |
5 |
31303 |
2495 |
- |
2528 |
= |
-33 |
* |
(27 |
/ |
88)
|
= |
-10.12499997 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Van Ness Avenue Elementary
|
-4 |
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 |
31474 |
2404 |
- |
2436 |
= |
-32 |
* |
(27 |
/ |
86)
|
= |
-10.04651162 |
4 |
31475 |
2478 |
- |
2485 |
= |
-7 |
* |
(22 |
/ |
86)
|
= |
-1.79069767 |
5 |
31476 |
2521 |
- |
2528 |
= |
-7 |
* |
(37 |
/ |
86)
|
= |
-3.01162791 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Van Ness Avenue Elementary
|
-15 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-40
|
-22
|
-19
|
-4
|
-15
|
-100.0 |
-20.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 19.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -59.0
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: