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 |
2364225 |
2484 |
- |
2436 |
= |
48 |
* |
(44 |
/ |
115)
|
= |
18.36521736 |
| 4 |
2364226 |
2474 |
- |
2485 |
= |
-11 |
* |
(27 |
/ |
115)
|
= |
-2.58260869 |
| 5 |
2364229 |
2502 |
- |
2528 |
= |
-26 |
* |
(44 |
/ |
115)
|
= |
-9.94782607 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Garfield Elementary
|
6 |
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 |
72231 |
2447 |
- |
2436 |
= |
11 |
* |
(39 |
/ |
107)
|
= |
4.00934579 |
| 4 |
72234 |
2481 |
- |
2485 |
= |
-4 |
* |
(41 |
/ |
107)
|
= |
-1.53271028 |
| 5 |
72236 |
2487 |
- |
2528 |
= |
-41 |
* |
(27 |
/ |
107)
|
= |
-10.34579437 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Garfield Elementary
|
-8 |
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 |
74205 |
2470 |
- |
2436 |
= |
34 |
* |
(37 |
/ |
113)
|
= |
11.13274335 |
| 4 |
74208 |
2478 |
- |
2485 |
= |
-7 |
* |
(35 |
/ |
113)
|
= |
-2.16814159 |
| 5 |
74209 |
2528 |
- |
2528 |
= |
0 |
* |
(41 |
/ |
113)
|
= |
0.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Garfield Elementary
|
9 |
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 |
74380 |
2489 |
- |
2436 |
= |
53 |
* |
(28 |
/ |
99)
|
= |
14.98989895 |
| 4 |
74381 |
2511 |
- |
2485 |
= |
26 |
* |
(36 |
/ |
99)
|
= |
9.45454544 |
| 5 |
74384 |
2506 |
- |
2528 |
= |
-22 |
* |
(35 |
/ |
99)
|
= |
-7.77777777 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Garfield Elementary
|
17 |
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 |
74903 |
2469 |
- |
2436 |
= |
33 |
* |
(34 |
/ |
92)
|
= |
12.19565216 |
| 4 |
74904 |
2520 |
- |
2485 |
= |
35 |
* |
(27 |
/ |
92)
|
= |
10.2717391 |
| 5 |
74905 |
2553 |
- |
2528 |
= |
25 |
* |
(31 |
/ |
92)
|
= |
8.42391303 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Garfield Elementary
|
31 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
6
|
-8
|
9
|
17
|
31
|
55.0 |
11.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 53.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -31.0
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:
