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 |
2263836 |
2373 |
- |
2436 |
= |
-63 |
* |
(54 |
/ |
124)
|
= |
-27.43548381 |
| 4 |
2263837 |
2451 |
- |
2485 |
= |
-34 |
* |
(27 |
/ |
124)
|
= |
-7.40322579 |
| 5 |
2263840 |
2444 |
- |
2528 |
= |
-84 |
* |
(43 |
/ |
124)
|
= |
-29.12903221 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Washington Elementary
|
-64 |
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 |
69461 |
2432 |
- |
2436 |
= |
-4 |
* |
(45 |
/ |
117)
|
= |
-1.53846154 |
| 4 |
69464 |
2467 |
- |
2485 |
= |
-18 |
* |
(43 |
/ |
117)
|
= |
-6.61538461 |
| 5 |
69465 |
2473 |
- |
2528 |
= |
-55 |
* |
(29 |
/ |
117)
|
= |
-13.63247859 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Washington Elementary
|
-22 |
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 |
71294 |
2402 |
- |
2436 |
= |
-34 |
* |
(37 |
/ |
103)
|
= |
-12.2135922 |
| 4 |
71297 |
2491 |
- |
2485 |
= |
6 |
* |
(37 |
/ |
103)
|
= |
2.1553398 |
| 5 |
71299 |
2527 |
- |
2528 |
= |
-1 |
* |
(29 |
/ |
103)
|
= |
-0.2815534 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Washington Elementary
|
-10 |
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 |
71440 |
2462 |
- |
2436 |
= |
26 |
* |
(39 |
/ |
117)
|
= |
8.66666666 |
| 4 |
71442 |
2438 |
- |
2485 |
= |
-47 |
* |
(38 |
/ |
117)
|
= |
-15.26495723 |
| 5 |
71444 |
2528 |
- |
2528 |
= |
0 |
* |
(40 |
/ |
117)
|
= |
0.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Washington Elementary
|
-7 |
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 |
71927 |
2425 |
- |
2436 |
= |
-11 |
* |
(43 |
/ |
121)
|
= |
-3.9090909 |
| 4 |
71928 |
2469 |
- |
2485 |
= |
-16 |
* |
(42 |
/ |
121)
|
= |
-5.55371901 |
| 5 |
71929 |
2484 |
- |
2528 |
= |
-44 |
* |
(36 |
/ |
121)
|
= |
-13.09090908 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Washington Elementary
|
-23 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-64
|
-22
|
-10
|
-7
|
-23
|
-126.0 |
-25.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 40.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -91.2
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:
