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 |
2247130 |
2411 |
- |
2436 |
= |
-25 |
* |
(35 |
/ |
137)
|
= |
-6.3868613 |
| 4 |
2247131 |
2436 |
- |
2485 |
= |
-49 |
* |
(34 |
/ |
137)
|
= |
-12.16058392 |
| 5 |
2247134 |
2432 |
- |
2528 |
= |
-96 |
* |
(31 |
/ |
137)
|
= |
-21.72262771 |
| 6 |
2247135 |
2496 |
- |
2552 |
= |
-56 |
* |
(37 |
/ |
137)
|
= |
-15.12408755 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Field Elementary
|
-55 |
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 |
68974 |
2413 |
- |
2436 |
= |
-23 |
* |
(41 |
/ |
110)
|
= |
-8.57272726 |
| 4 |
68976 |
2459 |
- |
2485 |
= |
-26 |
* |
(36 |
/ |
110)
|
= |
-8.5090909 |
| 5 |
68977 |
2490 |
- |
2528 |
= |
-38 |
* |
(33 |
/ |
110)
|
= |
-11.4 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Field Elementary
|
-28 |
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 |
70807 |
2408 |
- |
2436 |
= |
-28 |
* |
(42 |
/ |
117)
|
= |
-10.05128202 |
| 4 |
70808 |
2460 |
- |
2485 |
= |
-25 |
* |
(40 |
/ |
117)
|
= |
-8.54700853 |
| 5 |
70810 |
2517 |
- |
2528 |
= |
-11 |
* |
(35 |
/ |
117)
|
= |
-3.29059829 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Field Elementary
|
-22 |
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 |
70952 |
2425 |
- |
2436 |
= |
-11 |
* |
(38 |
/ |
115)
|
= |
-3.6347826 |
| 4 |
70954 |
2448 |
- |
2485 |
= |
-37 |
* |
(37 |
/ |
115)
|
= |
-11.90434781 |
| 5 |
70956 |
2504 |
- |
2528 |
= |
-24 |
* |
(40 |
/ |
115)
|
= |
-8.34782606 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Field Elementary
|
-24 |
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 |
71439 |
2436 |
- |
2436 |
= |
0 |
* |
(48 |
/ |
125)
|
= |
0.0 |
| 4 |
71440 |
2476 |
- |
2485 |
= |
-9 |
* |
(38 |
/ |
125)
|
= |
-2.736 |
| 5 |
71441 |
2503 |
- |
2528 |
= |
-25 |
* |
(39 |
/ |
125)
|
= |
-7.8 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Field Elementary
|
-11 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-55
|
-28
|
-22
|
-24
|
-11
|
-140.0 |
-28.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 20.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -76.0
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:
