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 |
906889 |
2423 |
- |
2436 |
= |
-13 |
* |
(56 |
/ |
215)
|
= |
-3.38604651 |
| 4 |
906892 |
2450 |
- |
2485 |
= |
-35 |
* |
(63 |
/ |
215)
|
= |
-10.25581393 |
| 5 |
906893 |
2476 |
- |
2528 |
= |
-52 |
* |
(69 |
/ |
215)
|
= |
-16.68837206 |
| 6 |
906896 |
2482 |
- |
2552 |
= |
-70 |
* |
(27 |
/ |
215)
|
= |
-8.79069765 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Gardner Street Elementary
|
-39 |
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 |
28665 |
2433 |
- |
2436 |
= |
-3 |
* |
(76 |
/ |
215)
|
= |
-1.06046512 |
| 4 |
28666 |
2485 |
- |
2485 |
= |
0 |
* |
(53 |
/ |
215)
|
= |
0.0 |
| 5 |
28668 |
2481 |
- |
2528 |
= |
-47 |
* |
(60 |
/ |
215)
|
= |
-13.11627905 |
| 6 |
28671 |
2529 |
- |
2552 |
= |
-23 |
* |
(26 |
/ |
215)
|
= |
-2.78139534 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Gardner Street Elementary
|
-17 |
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 |
29231 |
2469 |
- |
2436 |
= |
33 |
* |
(59 |
/ |
163)
|
= |
11.94478527 |
| 4 |
29233 |
2475 |
- |
2485 |
= |
-10 |
* |
(65 |
/ |
163)
|
= |
-3.98773006 |
| 5 |
29236 |
2520 |
- |
2528 |
= |
-8 |
* |
(39 |
/ |
163)
|
= |
-1.91411042 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Gardner Street Elementary
|
6 |
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 |
29281 |
2454 |
- |
2436 |
= |
18 |
* |
(75 |
/ |
191)
|
= |
7.06806283 |
| 4 |
29283 |
2512 |
- |
2485 |
= |
27 |
* |
(55 |
/ |
191)
|
= |
7.77486911 |
| 5 |
29285 |
2473 |
- |
2528 |
= |
-55 |
* |
(61 |
/ |
191)
|
= |
-17.56544499 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Gardner Street Elementary
|
-3 |
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 |
29458 |
2475 |
- |
2436 |
= |
39 |
* |
(52 |
/ |
170)
|
= |
11.92941173 |
| 4 |
29459 |
2468 |
- |
2485 |
= |
-17 |
* |
(64 |
/ |
170)
|
= |
-6.4 |
| 5 |
29460 |
2528 |
- |
2528 |
= |
0 |
* |
(54 |
/ |
170)
|
= |
0.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Gardner Street Elementary
|
6 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-39
|
-17
|
6
|
-3
|
6
|
-47.0 |
-9.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 47.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -66.4
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:
