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 |
2270809 |
2463 |
- |
2436 |
= |
27 |
* |
(113 |
/ |
352)
|
= |
8.66761363 |
| 4 |
2270812 |
2514 |
- |
2485 |
= |
29 |
* |
(113 |
/ |
352)
|
= |
9.30965908 |
| 5 |
2270813 |
2542 |
- |
2528 |
= |
14 |
* |
(126 |
/ |
352)
|
= |
5.01136363 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Ericson Elementary
|
23 |
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 |
69644 |
2495 |
- |
2436 |
= |
59 |
* |
(101 |
/ |
317)
|
= |
18.79810723 |
| 4 |
69645 |
2519 |
- |
2485 |
= |
34 |
* |
(111 |
/ |
317)
|
= |
11.90536275 |
| 5 |
69647 |
2566 |
- |
2528 |
= |
38 |
* |
(105 |
/ |
317)
|
= |
12.58675075 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Ericson Elementary
|
43 |
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 |
71477 |
2504 |
- |
2436 |
= |
68 |
* |
(89 |
/ |
296)
|
= |
20.4459459 |
| 4 |
71478 |
2540 |
- |
2485 |
= |
55 |
* |
(103 |
/ |
296)
|
= |
19.13851346 |
| 5 |
71480 |
2569 |
- |
2528 |
= |
41 |
* |
(104 |
/ |
296)
|
= |
14.40540539 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Ericson Elementary
|
54 |
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 |
71621 |
2514 |
- |
2436 |
= |
78 |
* |
(105 |
/ |
283)
|
= |
28.93992925 |
| 4 |
71624 |
2523 |
- |
2485 |
= |
38 |
* |
(83 |
/ |
283)
|
= |
11.14487632 |
| 5 |
71625 |
2577 |
- |
2528 |
= |
49 |
* |
(95 |
/ |
283)
|
= |
16.44876321 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Ericson Elementary
|
57 |
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 |
72107 |
2517 |
- |
2436 |
= |
81 |
* |
(100 |
/ |
284)
|
= |
28.52112676 |
| 4 |
72108 |
2527 |
- |
2485 |
= |
42 |
* |
(104 |
/ |
284)
|
= |
15.38028169 |
| 5 |
72109 |
2576 |
- |
2528 |
= |
48 |
* |
(80 |
/ |
284)
|
= |
13.52112672 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Ericson Elementary
|
57 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
23
|
43
|
54
|
57
|
57
|
234.0 |
46.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 88.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 4.8
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:
