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 |
942029 |
2392 |
- |
2436 |
= |
-44 |
* |
(88 |
/ |
223)
|
= |
-17.3632287 |
| 4 |
942030 |
2411 |
- |
2485 |
= |
-74 |
* |
(59 |
/ |
223)
|
= |
-19.57847533 |
| 5 |
942033 |
2435 |
- |
2528 |
= |
-93 |
* |
(76 |
/ |
223)
|
= |
-31.69506718 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Oxnard Street Elementary
|
-69 |
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 |
29804 |
2414 |
- |
2436 |
= |
-22 |
* |
(63 |
/ |
207)
|
= |
-6.69565217 |
| 4 |
29806 |
2431 |
- |
2485 |
= |
-54 |
* |
(82 |
/ |
207)
|
= |
-21.39130431 |
| 5 |
29809 |
2470 |
- |
2528 |
= |
-58 |
* |
(62 |
/ |
207)
|
= |
-17.37198066 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Oxnard Street Elementary
|
-45 |
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 |
30369 |
2422 |
- |
2436 |
= |
-14 |
* |
(57 |
/ |
198)
|
= |
-4.03030302 |
| 4 |
30371 |
2437 |
- |
2485 |
= |
-48 |
* |
(61 |
/ |
198)
|
= |
-14.78787878 |
| 5 |
30373 |
2458 |
- |
2528 |
= |
-70 |
* |
(80 |
/ |
198)
|
= |
-28.28282828 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Oxnard Street Elementary
|
-47 |
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 |
30421 |
2425 |
- |
2436 |
= |
-11 |
* |
(59 |
/ |
171)
|
= |
-3.79532163 |
| 4 |
30423 |
2430 |
- |
2485 |
= |
-55 |
* |
(52 |
/ |
171)
|
= |
-16.72514619 |
| 5 |
30425 |
2454 |
- |
2528 |
= |
-74 |
* |
(60 |
/ |
171)
|
= |
-25.96491221 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Oxnard Street Elementary
|
-46 |
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 |
30594 |
2431 |
- |
2436 |
= |
-5 |
* |
(64 |
/ |
178)
|
= |
-1.79775281 |
| 4 |
30595 |
2439 |
- |
2485 |
= |
-46 |
* |
(56 |
/ |
178)
|
= |
-14.47191009 |
| 5 |
30596 |
2437 |
- |
2528 |
= |
-91 |
* |
(58 |
/ |
178)
|
= |
-29.65168534 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Oxnard Street Elementary
|
-46 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-69
|
-45
|
-47
|
-46
|
-46
|
-253.0 |
-50.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -20.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -80.6
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:
