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 |
2257660 |
2435 |
- |
2436 |
= |
-1 |
* |
(91 |
/ |
249)
|
= |
-0.36546185 |
| 4 |
2257661 |
2500 |
- |
2485 |
= |
15 |
* |
(91 |
/ |
249)
|
= |
5.48192771 |
| 5 |
2257664 |
2511 |
- |
2528 |
= |
-17 |
* |
(67 |
/ |
249)
|
= |
-4.57429719 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for McKinley Elementary
|
1 |
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 |
69280 |
2463 |
- |
2436 |
= |
27 |
* |
(93 |
/ |
265)
|
= |
9.47547169 |
| 4 |
69282 |
2499 |
- |
2485 |
= |
14 |
* |
(88 |
/ |
265)
|
= |
4.64905659 |
| 5 |
69284 |
2520 |
- |
2528 |
= |
-8 |
* |
(84 |
/ |
265)
|
= |
-2.53584906 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for McKinley Elementary
|
12 |
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 |
71112 |
2474 |
- |
2436 |
= |
38 |
* |
(105 |
/ |
282)
|
= |
14.14893615 |
| 4 |
71115 |
2516 |
- |
2485 |
= |
31 |
* |
(87 |
/ |
282)
|
= |
9.56382978 |
| 5 |
71117 |
2532 |
- |
2528 |
= |
4 |
* |
(90 |
/ |
282)
|
= |
1.27659574 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for McKinley Elementary
|
25 |
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 |
71257 |
2487 |
- |
2436 |
= |
51 |
* |
(82 |
/ |
272)
|
= |
15.37499999 |
| 4 |
71260 |
2518 |
- |
2485 |
= |
33 |
* |
(103 |
/ |
272)
|
= |
12.49632351 |
| 5 |
71261 |
2563 |
- |
2528 |
= |
35 |
* |
(87 |
/ |
272)
|
= |
11.19485294 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for McKinley Elementary
|
39 |
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 |
71745 |
2504 |
- |
2436 |
= |
68 |
* |
(86 |
/ |
256)
|
= |
22.84375 |
| 4 |
71746 |
2519 |
- |
2485 |
= |
34 |
* |
(74 |
/ |
256)
|
= |
9.828125 |
| 5 |
71747 |
2571 |
- |
2528 |
= |
43 |
* |
(96 |
/ |
256)
|
= |
16.125 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for McKinley Elementary
|
49 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
1
|
12
|
25
|
39
|
49
|
126.0 |
25.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 82.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -31.8
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:
