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 |
2274771 |
2464 |
- |
2436 |
= |
28 |
* |
(67 |
/ |
191)
|
= |
9.82198952 |
| 4 |
2274772 |
2466 |
- |
2485 |
= |
-19 |
* |
(64 |
/ |
191)
|
= |
-6.36649215 |
| 5 |
2274775 |
2527 |
- |
2528 |
= |
-1 |
* |
(60 |
/ |
191)
|
= |
-0.31413613 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Vista Grande Elementary
|
3 |
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 |
69747 |
2481 |
- |
2436 |
= |
45 |
* |
(60 |
/ |
171)
|
= |
15.78947364 |
| 4 |
69750 |
2494 |
- |
2485 |
= |
9 |
* |
(52 |
/ |
171)
|
= |
2.7368421 |
| 5 |
69752 |
2511 |
- |
2528 |
= |
-17 |
* |
(59 |
/ |
171)
|
= |
-5.86549706 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Vista Grande Elementary
|
13 |
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 |
71581 |
2493 |
- |
2436 |
= |
57 |
* |
(65 |
/ |
179)
|
= |
20.69832399 |
| 4 |
71583 |
2520 |
- |
2485 |
= |
35 |
* |
(62 |
/ |
179)
|
= |
12.12290503 |
| 5 |
71585 |
2558 |
- |
2528 |
= |
30 |
* |
(52 |
/ |
179)
|
= |
8.71508379 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Vista Grande Elementary
|
42 |
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 |
71725 |
2486 |
- |
2436 |
= |
50 |
* |
(66 |
/ |
183)
|
= |
18.03278685 |
| 4 |
71728 |
2532 |
- |
2485 |
= |
47 |
* |
(54 |
/ |
183)
|
= |
13.86885245 |
| 5 |
71729 |
2578 |
- |
2528 |
= |
50 |
* |
(63 |
/ |
183)
|
= |
17.21311475 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Vista Grande Elementary
|
49 |
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 |
72211 |
2497 |
- |
2436 |
= |
61 |
* |
(58 |
/ |
173)
|
= |
20.45086702 |
| 4 |
72212 |
2513 |
- |
2485 |
= |
28 |
* |
(64 |
/ |
173)
|
= |
10.35838149 |
| 5 |
72213 |
2574 |
- |
2528 |
= |
46 |
* |
(51 |
/ |
173)
|
= |
13.5606936 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Vista Grande Elementary
|
44 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
3
|
13
|
42
|
49
|
44
|
151.0 |
30.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 90.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -29.8
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:
