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 |
903378 |
2375 |
- |
2436 |
= |
-61 |
* |
(105 |
/ |
342)
|
= |
-18.72807012 |
| 4 |
903381 |
2411 |
- |
2485 |
= |
-74 |
* |
(110 |
/ |
342)
|
= |
-23.80116952 |
| 5 |
903382 |
2441 |
- |
2528 |
= |
-87 |
* |
(127 |
/ |
342)
|
= |
-32.30701752 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Figueroa Street Elementary
|
-75 |
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 |
28547 |
2372 |
- |
2436 |
= |
-64 |
* |
(95 |
/ |
309)
|
= |
-19.67637536 |
| 4 |
28549 |
2404 |
- |
2485 |
= |
-81 |
* |
(105 |
/ |
309)
|
= |
-27.52427183 |
| 5 |
28550 |
2451 |
- |
2528 |
= |
-77 |
* |
(109 |
/ |
309)
|
= |
-27.16181229 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Figueroa Street Elementary
|
-74 |
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 |
29114 |
2405 |
- |
2436 |
= |
-31 |
* |
(76 |
/ |
282)
|
= |
-8.35460993 |
| 4 |
29115 |
2395 |
- |
2485 |
= |
-90 |
* |
(102 |
/ |
282)
|
= |
-32.55319143 |
| 5 |
29118 |
2434 |
- |
2528 |
= |
-94 |
* |
(104 |
/ |
282)
|
= |
-34.66666664 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Figueroa Street Elementary
|
-76 |
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 |
29163 |
2394 |
- |
2436 |
= |
-42 |
* |
(92 |
/ |
272)
|
= |
-14.20588235 |
| 4 |
29165 |
2452 |
- |
2485 |
= |
-33 |
* |
(78 |
/ |
272)
|
= |
-9.46323527 |
| 5 |
29167 |
2454 |
- |
2528 |
= |
-74 |
* |
(102 |
/ |
272)
|
= |
-27.75 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Figueroa Street Elementary
|
-51 |
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 |
29342 |
2407 |
- |
2436 |
= |
-29 |
* |
(86 |
/ |
262)
|
= |
-9.51908395 |
| 4 |
29343 |
2432 |
- |
2485 |
= |
-53 |
* |
(96 |
/ |
262)
|
= |
-19.41984729 |
| 5 |
29344 |
2508 |
- |
2528 |
= |
-20 |
* |
(80 |
/ |
262)
|
= |
-6.10687022 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Figueroa Street Elementary
|
-35 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-75
|
-74
|
-76
|
-51
|
-35
|
-311.0 |
-62.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -8.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -116.2
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:
