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 |
952746 |
2419 |
- |
2436 |
= |
-17 |
* |
(122 |
/ |
330)
|
= |
-6.28484847 |
| 4 |
952749 |
2419 |
- |
2485 |
= |
-66 |
* |
(96 |
/ |
330)
|
= |
-19.19999994 |
| 5 |
952750 |
2466 |
- |
2528 |
= |
-62 |
* |
(112 |
/ |
330)
|
= |
-21.04242422 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for San Pedro Street Elementary
|
-47 |
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 |
30140 |
2415 |
- |
2436 |
= |
-21 |
* |
(134 |
/ |
341)
|
= |
-8.2521994 |
| 4 |
30143 |
2458 |
- |
2485 |
= |
-27 |
* |
(116 |
/ |
341)
|
= |
-9.18475073 |
| 5 |
30144 |
2464 |
- |
2528 |
= |
-64 |
* |
(91 |
/ |
341)
|
= |
-17.07917888 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for San Pedro Street Elementary
|
-35 |
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 |
30706 |
2399 |
- |
2436 |
= |
-37 |
* |
(117 |
/ |
361)
|
= |
-11.99168971 |
| 4 |
30708 |
2440 |
- |
2485 |
= |
-45 |
* |
(129 |
/ |
361)
|
= |
-16.0803324 |
| 5 |
30710 |
2484 |
- |
2528 |
= |
-44 |
* |
(115 |
/ |
361)
|
= |
-14.01662046 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for San Pedro Street 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 |
30753 |
2409 |
- |
2436 |
= |
-27 |
* |
(123 |
/ |
381)
|
= |
-8.71653542 |
| 4 |
30755 |
2466 |
- |
2485 |
= |
-19 |
* |
(123 |
/ |
381)
|
= |
-6.13385826 |
| 5 |
30757 |
2450 |
- |
2528 |
= |
-78 |
* |
(135 |
/ |
381)
|
= |
-27.63779522 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for San Pedro Street Elementary
|
-42 |
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 |
30928 |
2411 |
- |
2436 |
= |
-25 |
* |
(116 |
/ |
363)
|
= |
-7.9889807 |
| 4 |
30929 |
2415 |
- |
2485 |
= |
-70 |
* |
(127 |
/ |
363)
|
= |
-24.49035806 |
| 5 |
30930 |
2483 |
- |
2528 |
= |
-45 |
* |
(120 |
/ |
363)
|
= |
-14.87603304 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for San Pedro Street Elementary
|
-47 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-47
|
-35
|
-42
|
-42
|
-47
|
-213.0 |
-42.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -30.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -54.6
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:
