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 |
924363 |
2409 |
- |
2436 |
= |
-27 |
* |
(90 |
/ |
333)
|
= |
-7.29729729 |
4 |
924366 |
2425 |
- |
2485 |
= |
-60 |
* |
(77 |
/ |
333)
|
= |
-13.87387386 |
5 |
924367 |
2429 |
- |
2528 |
= |
-99 |
* |
(98 |
/ |
333)
|
= |
-29.13513511 |
6 |
924370 |
2454 |
- |
2552 |
= |
-98 |
* |
(68 |
/ |
333)
|
= |
-20.01201199 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Lockwood Avenue Elementary
|
-70 |
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 |
29220 |
2408 |
- |
2436 |
= |
-28 |
* |
(77 |
/ |
307)
|
= |
-7.0228013 |
4 |
29222 |
2436 |
- |
2485 |
= |
-49 |
* |
(91 |
/ |
307)
|
= |
-14.52442996 |
5 |
29225 |
2446 |
- |
2528 |
= |
-82 |
* |
(79 |
/ |
307)
|
= |
-21.10097718 |
6 |
29226 |
2461 |
- |
2552 |
= |
-91 |
* |
(60 |
/ |
307)
|
= |
-17.78501625 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Lockwood Avenue Elementary
|
-60 |
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 |
29786 |
2437 |
- |
2436 |
= |
1 |
* |
(89 |
/ |
305)
|
= |
0.29180328 |
4 |
29787 |
2451 |
- |
2485 |
= |
-34 |
* |
(75 |
/ |
305)
|
= |
-8.36065573 |
5 |
29790 |
2480 |
- |
2528 |
= |
-48 |
* |
(90 |
/ |
305)
|
= |
-14.16393442 |
6 |
29791 |
2468 |
- |
2552 |
= |
-84 |
* |
(51 |
/ |
305)
|
= |
-14.04590158 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Lockwood Avenue Elementary
|
-36 |
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 |
29834 |
2402 |
- |
2436 |
= |
-34 |
* |
(64 |
/ |
279)
|
= |
-7.79928315 |
4 |
29836 |
2457 |
- |
2485 |
= |
-28 |
* |
(84 |
/ |
279)
|
= |
-8.4301075 |
5 |
29838 |
2475 |
- |
2528 |
= |
-53 |
* |
(68 |
/ |
279)
|
= |
-12.91756269 |
6 |
29840 |
2491 |
- |
2552 |
= |
-61 |
* |
(63 |
/ |
279)
|
= |
-13.77419351 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Lockwood Avenue Elementary
|
-43 |
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 |
30011 |
2401 |
- |
2436 |
= |
-35 |
* |
(82 |
/ |
266)
|
= |
-10.78947366 |
4 |
30012 |
2438 |
- |
2485 |
= |
-47 |
* |
(57 |
/ |
266)
|
= |
-10.07142856 |
5 |
30013 |
2492 |
- |
2528 |
= |
-36 |
* |
(73 |
/ |
266)
|
= |
-9.87969924 |
6 |
30014 |
2465 |
- |
2552 |
= |
-87 |
* |
(54 |
/ |
266)
|
= |
-17.66165407 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Lockwood Avenue Elementary
|
-48 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-70
|
-60
|
-36
|
-43
|
-48
|
-257.0 |
-51.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -12.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -90.4
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: