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 |
907546 |
2385 |
- |
2436 |
= |
-51 |
* |
(110 |
/ |
334)
|
= |
-16.79640717 |
4 |
907547 |
2426 |
- |
2485 |
= |
-59 |
* |
(117 |
/ |
334)
|
= |
-20.66766466 |
5 |
907550 |
2427 |
- |
2528 |
= |
-101 |
* |
(107 |
/ |
334)
|
= |
-32.35628738 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Gates Street Elementary
|
-70 |
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 |
28685 |
2387 |
- |
2436 |
= |
-49 |
* |
(124 |
/ |
345)
|
= |
-17.61159416 |
4 |
28687 |
2418 |
- |
2485 |
= |
-67 |
* |
(107 |
/ |
345)
|
= |
-20.77971011 |
5 |
28689 |
2437 |
- |
2528 |
= |
-91 |
* |
(114 |
/ |
345)
|
= |
-30.06956516 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Gates Street Elementary
|
-68 |
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 |
29250 |
2379 |
- |
2436 |
= |
-57 |
* |
(116 |
/ |
340)
|
= |
-19.44705879 |
4 |
29252 |
2423 |
- |
2485 |
= |
-62 |
* |
(118 |
/ |
340)
|
= |
-21.51764703 |
5 |
29254 |
2437 |
- |
2528 |
= |
-91 |
* |
(106 |
/ |
340)
|
= |
-28.37058816 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Gates Street Elementary
|
-69 |
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 |
29298 |
2400 |
- |
2436 |
= |
-36 |
* |
(97 |
/ |
318)
|
= |
-10.98113206 |
4 |
29300 |
2422 |
- |
2485 |
= |
-63 |
* |
(107 |
/ |
318)
|
= |
-21.19811318 |
5 |
29302 |
2462 |
- |
2528 |
= |
-66 |
* |
(114 |
/ |
318)
|
= |
-23.66037736 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Gates Street Elementary
|
-56 |
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 |
29474 |
2401 |
- |
2436 |
= |
-35 |
* |
(113 |
/ |
314)
|
= |
-12.59554139 |
4 |
29475 |
2447 |
- |
2485 |
= |
-38 |
* |
(97 |
/ |
314)
|
= |
-11.73885349 |
5 |
29476 |
2446 |
- |
2528 |
= |
-82 |
* |
(104 |
/ |
314)
|
= |
-27.15923566 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Gates Street Elementary
|
-51 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-70
|
-68
|
-69
|
-56
|
-51
|
-314.0 |
-62.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -38.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -86.8
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: