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 |
93291 |
2477 |
- |
2436 |
= |
41 |
* |
(51 |
/ |
162)
|
= |
12.90740737 |
| 4 |
93294 |
2550 |
- |
2485 |
= |
65 |
* |
(53 |
/ |
162)
|
= |
21.26543205 |
| 5 |
93295 |
2581 |
- |
2528 |
= |
53 |
* |
(58 |
/ |
162)
|
= |
18.97530862 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Peralta Elementary
|
53 |
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 |
2629 |
2489 |
- |
2436 |
= |
53 |
* |
(44 |
/ |
144)
|
= |
16.19444442 |
| 4 |
2631 |
2520 |
- |
2485 |
= |
35 |
* |
(48 |
/ |
144)
|
= |
11.66666666 |
| 5 |
2633 |
2571 |
- |
2528 |
= |
43 |
* |
(52 |
/ |
144)
|
= |
15.52777777 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Peralta 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 |
2703 |
2477 |
- |
2436 |
= |
41 |
* |
(52 |
/ |
153)
|
= |
13.93464052 |
| 4 |
2706 |
2542 |
- |
2485 |
= |
57 |
* |
(54 |
/ |
153)
|
= |
20.11764703 |
| 5 |
2707 |
2542 |
- |
2528 |
= |
14 |
* |
(47 |
/ |
153)
|
= |
4.30065359 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Peralta Elementary
|
38 |
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 |
2707 |
2486 |
- |
2436 |
= |
50 |
* |
(56 |
/ |
167)
|
= |
16.76646705 |
| 4 |
2710 |
2545 |
- |
2485 |
= |
60 |
* |
(59 |
/ |
167)
|
= |
21.19760478 |
| 5 |
2711 |
2572 |
- |
2528 |
= |
44 |
* |
(52 |
/ |
167)
|
= |
13.70059878 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Peralta Elementary
|
52 |
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 |
2729 |
2490 |
- |
2436 |
= |
54 |
* |
(47 |
/ |
155)
|
= |
16.37419352 |
| 4 |
2730 |
2564 |
- |
2485 |
= |
79 |
* |
(51 |
/ |
155)
|
= |
25.99354838 |
| 5 |
2731 |
2571 |
- |
2528 |
= |
43 |
* |
(57 |
/ |
155)
|
= |
15.81290321 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Peralta Elementary
|
58 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
53
|
43
|
38
|
52
|
58
|
244.0 |
48.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 72.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 24.8
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:
