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 |
85879 |
2482 |
- |
2436 |
= |
46 |
* |
(86 |
/ |
270)
|
= |
14.65185183 |
| 4 |
85880 |
2541 |
- |
2485 |
= |
56 |
* |
(95 |
/ |
270)
|
= |
19.70370366 |
| 5 |
85883 |
2571 |
- |
2528 |
= |
43 |
* |
(89 |
/ |
270)
|
= |
14.17407405 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Chabot Elementary
|
49 |
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 |
2404 |
2512 |
- |
2436 |
= |
76 |
* |
(89 |
/ |
265)
|
= |
25.52452826 |
| 4 |
2405 |
2520 |
- |
2485 |
= |
35 |
* |
(87 |
/ |
265)
|
= |
11.49056601 |
| 5 |
2408 |
2562 |
- |
2528 |
= |
34 |
* |
(89 |
/ |
265)
|
= |
11.4188679 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Chabot Elementary
|
48 |
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 |
2476 |
2491 |
- |
2436 |
= |
55 |
* |
(89 |
/ |
266)
|
= |
18.40225563 |
| 4 |
2478 |
2541 |
- |
2485 |
= |
56 |
* |
(90 |
/ |
266)
|
= |
18.94736838 |
| 5 |
2480 |
2562 |
- |
2528 |
= |
34 |
* |
(87 |
/ |
266)
|
= |
11.12030075 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Chabot Elementary
|
48 |
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 |
2479 |
2507 |
- |
2436 |
= |
71 |
* |
(97 |
/ |
271)
|
= |
25.41328411 |
| 4 |
2481 |
2536 |
- |
2485 |
= |
51 |
* |
(86 |
/ |
271)
|
= |
16.18450182 |
| 5 |
2483 |
2555 |
- |
2528 |
= |
27 |
* |
(88 |
/ |
271)
|
= |
8.76752767 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Chabot Elementary
|
50 |
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 |
2501 |
2506 |
- |
2436 |
= |
70 |
* |
(86 |
/ |
266)
|
= |
22.6315789 |
| 4 |
2502 |
2551 |
- |
2485 |
= |
66 |
* |
(95 |
/ |
266)
|
= |
23.57142856 |
| 5 |
2503 |
2554 |
- |
2528 |
= |
26 |
* |
(85 |
/ |
266)
|
= |
8.30827067 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Chabot Elementary
|
55 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
49
|
48
|
48
|
50
|
55
|
250.0 |
50.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 56.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 44.0
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:
