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 |
2142383 |
2456 |
- |
2436 |
= |
20 |
* |
(101 |
/ |
430)
|
= |
4.6976744 |
| 4 |
2142384 |
2506 |
- |
2485 |
= |
21 |
* |
(105 |
/ |
430)
|
= |
5.12790697 |
| 5 |
2142387 |
2545 |
- |
2528 |
= |
17 |
* |
(107 |
/ |
430)
|
= |
4.23023255 |
| 6 |
2142388 |
2574 |
- |
2552 |
= |
22 |
* |
(117 |
/ |
430)
|
= |
5.98604651 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Marshall (Thurgood) Elementary
|
20 |
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 |
65763 |
2474 |
- |
2436 |
= |
38 |
* |
(87 |
/ |
393)
|
= |
8.41221371 |
| 4 |
65765 |
2509 |
- |
2485 |
= |
24 |
* |
(96 |
/ |
393)
|
= |
5.86259542 |
| 5 |
65767 |
2542 |
- |
2528 |
= |
14 |
* |
(110 |
/ |
393)
|
= |
3.91857505 |
| 6 |
65769 |
2566 |
- |
2552 |
= |
14 |
* |
(100 |
/ |
393)
|
= |
3.56234096 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Marshall (Thurgood) Elementary
|
22 |
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 |
67580 |
2465 |
- |
2436 |
= |
29 |
* |
(75 |
/ |
377)
|
= |
5.76923077 |
| 4 |
67583 |
2529 |
- |
2485 |
= |
44 |
* |
(90 |
/ |
377)
|
= |
10.50397876 |
| 5 |
67585 |
2532 |
- |
2528 |
= |
4 |
* |
(96 |
/ |
377)
|
= |
1.01856764 |
| 6 |
67587 |
2570 |
- |
2552 |
= |
18 |
* |
(116 |
/ |
377)
|
= |
5.53846153 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Marshall (Thurgood) Elementary
|
23 |
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 |
67686 |
2472 |
- |
2436 |
= |
36 |
* |
(75 |
/ |
350)
|
= |
7.7142857 |
| 4 |
67689 |
2518 |
- |
2485 |
= |
33 |
* |
(80 |
/ |
350)
|
= |
7.54285712 |
| 5 |
67691 |
2537 |
- |
2528 |
= |
9 |
* |
(93 |
/ |
350)
|
= |
2.39142857 |
| 6 |
67692 |
2573 |
- |
2552 |
= |
21 |
* |
(102 |
/ |
350)
|
= |
6.11999999 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Marshall (Thurgood) 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 |
68202 |
2465 |
- |
2436 |
= |
29 |
* |
(82 |
/ |
340)
|
= |
6.99411763 |
| 4 |
68203 |
2509 |
- |
2485 |
= |
24 |
* |
(79 |
/ |
340)
|
= |
5.57647058 |
| 5 |
68204 |
2530 |
- |
2528 |
= |
2 |
* |
(80 |
/ |
340)
|
= |
0.47058823 |
| 6 |
68205 |
2586 |
- |
2552 |
= |
34 |
* |
(99 |
/ |
340)
|
= |
9.89999998 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Marshall (Thurgood) Elementary
|
23 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
20
|
22
|
23
|
24
|
23
|
112.0 |
22.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 25.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 19.4
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:
