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 |
2361341 |
2450 |
- |
2436 |
= |
14 |
* |
(129 |
/ |
352)
|
= |
5.13068181 |
| 4 |
2361343 |
2504 |
- |
2485 |
= |
19 |
* |
(109 |
/ |
352)
|
= |
5.88352271 |
| 5 |
2361344 |
2547 |
- |
2528 |
= |
19 |
* |
(114 |
/ |
352)
|
= |
6.15340908 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Lau (Gordon J.) Elementary
|
17 |
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 |
72145 |
2462 |
- |
2436 |
= |
26 |
* |
(109 |
/ |
345)
|
= |
8.21449273 |
| 4 |
72148 |
2491 |
- |
2485 |
= |
6 |
* |
(124 |
/ |
345)
|
= |
2.15652173 |
| 5 |
72149 |
2517 |
- |
2528 |
= |
-11 |
* |
(112 |
/ |
345)
|
= |
-3.57101449 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Lau (Gordon J.) Elementary
|
7 |
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 |
74120 |
2453 |
- |
2436 |
= |
17 |
* |
(115 |
/ |
344)
|
= |
5.68313953 |
| 4 |
74122 |
2509 |
- |
2485 |
= |
24 |
* |
(105 |
/ |
344)
|
= |
7.32558139 |
| 5 |
74124 |
2523 |
- |
2528 |
= |
-5 |
* |
(124 |
/ |
344)
|
= |
-1.80232558 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Lau (Gordon J.) Elementary
|
11 |
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 |
74294 |
2448 |
- |
2436 |
= |
12 |
* |
(82 |
/ |
298)
|
= |
3.30201342 |
| 4 |
74295 |
2514 |
- |
2485 |
= |
29 |
* |
(111 |
/ |
298)
|
= |
10.80201341 |
| 5 |
74298 |
2531 |
- |
2528 |
= |
3 |
* |
(105 |
/ |
298)
|
= |
1.05704698 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Lau (Gordon J.) Elementary
|
15 |
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 |
74817 |
2482 |
- |
2436 |
= |
46 |
* |
(118 |
/ |
320)
|
= |
16.9625 |
| 4 |
74818 |
2513 |
- |
2485 |
= |
28 |
* |
(88 |
/ |
320)
|
= |
7.7 |
| 5 |
74819 |
2543 |
- |
2528 |
= |
15 |
* |
(114 |
/ |
320)
|
= |
5.34375 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Lau (Gordon J.) Elementary
|
30 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
17
|
7
|
11
|
15
|
30
|
80.0 |
16.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 40.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -8.0
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:
