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 |
906332 |
2404 |
- |
2436 |
= |
-32 |
* |
(81 |
/ |
217)
|
= |
-11.94470045 |
| 4 |
906335 |
2445 |
- |
2485 |
= |
-40 |
* |
(67 |
/ |
217)
|
= |
-12.3502304 |
| 5 |
906336 |
2454 |
- |
2528 |
= |
-74 |
* |
(69 |
/ |
217)
|
= |
-23.5299539 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Garden Grove Elementary
|
-48 |
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 |
28649 |
2423 |
- |
2436 |
= |
-13 |
* |
(62 |
/ |
198)
|
= |
-4.07070707 |
| 4 |
28650 |
2459 |
- |
2485 |
= |
-26 |
* |
(70 |
/ |
198)
|
= |
-9.19191918 |
| 5 |
28653 |
2448 |
- |
2528 |
= |
-80 |
* |
(66 |
/ |
198)
|
= |
-26.66666664 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Garden Grove Elementary
|
-40 |
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 |
29216 |
2393 |
- |
2436 |
= |
-43 |
* |
(69 |
/ |
199)
|
= |
-14.90954772 |
| 4 |
29218 |
2462 |
- |
2485 |
= |
-23 |
* |
(60 |
/ |
199)
|
= |
-6.93467335 |
| 5 |
29220 |
2447 |
- |
2528 |
= |
-81 |
* |
(70 |
/ |
199)
|
= |
-28.49246223 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Garden Grove Elementary
|
-50 |
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 |
29264 |
2398 |
- |
2436 |
= |
-38 |
* |
(70 |
/ |
197)
|
= |
-13.50253806 |
| 4 |
29266 |
2436 |
- |
2485 |
= |
-49 |
* |
(68 |
/ |
197)
|
= |
-16.91370554 |
| 5 |
29268 |
2479 |
- |
2528 |
= |
-49 |
* |
(59 |
/ |
197)
|
= |
-14.67512687 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Garden Grove Elementary
|
-45 |
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 |
29442 |
2399 |
- |
2436 |
= |
-37 |
* |
(52 |
/ |
193)
|
= |
-9.96891189 |
| 4 |
29443 |
2439 |
- |
2485 |
= |
-46 |
* |
(72 |
/ |
193)
|
= |
-17.16062172 |
| 5 |
29444 |
2482 |
- |
2528 |
= |
-46 |
* |
(69 |
/ |
193)
|
= |
-16.44559584 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Garden Grove Elementary
|
-44 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-48
|
-40
|
-50
|
-45
|
-44
|
-227.0 |
-45.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -36.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -54.4
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:
