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 |
1445106 |
2482 |
- |
2436 |
= |
46 |
* |
(150 |
/ |
479)
|
= |
14.4050104 |
| 4 |
1445107 |
2509 |
- |
2485 |
= |
24 |
* |
(157 |
/ |
479)
|
= |
7.8663883 |
| 5 |
1445110 |
2545 |
- |
2528 |
= |
17 |
* |
(172 |
/ |
479)
|
= |
6.10438412 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Chaparral Elementary
|
28 |
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 |
45483 |
2486 |
- |
2436 |
= |
50 |
* |
(140 |
/ |
452)
|
= |
15.48672565 |
| 4 |
45485 |
2529 |
- |
2485 |
= |
44 |
* |
(150 |
/ |
452)
|
= |
14.60176991 |
| 5 |
45487 |
2547 |
- |
2528 |
= |
19 |
* |
(162 |
/ |
452)
|
= |
6.8097345 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Chaparral Elementary
|
37 |
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 |
46693 |
2485 |
- |
2436 |
= |
49 |
* |
(141 |
/ |
421)
|
= |
16.41092634 |
| 4 |
46694 |
2533 |
- |
2485 |
= |
48 |
* |
(132 |
/ |
421)
|
= |
15.04988122 |
| 5 |
46697 |
2558 |
- |
2528 |
= |
30 |
* |
(148 |
/ |
421)
|
= |
10.54631826 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Chaparral Elementary
|
42 |
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 |
46702 |
2490 |
- |
2436 |
= |
54 |
* |
(146 |
/ |
423)
|
= |
18.63829786 |
| 4 |
46704 |
2537 |
- |
2485 |
= |
52 |
* |
(139 |
/ |
423)
|
= |
17.0874704 |
| 5 |
46706 |
2557 |
- |
2528 |
= |
29 |
* |
(138 |
/ |
423)
|
= |
9.46099289 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Chaparral Elementary
|
45 |
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 |
46881 |
2495 |
- |
2436 |
= |
59 |
* |
(105 |
/ |
382)
|
= |
16.21727743 |
| 4 |
46882 |
2541 |
- |
2485 |
= |
56 |
* |
(139 |
/ |
382)
|
= |
20.37696332 |
| 5 |
46883 |
2544 |
- |
2528 |
= |
16 |
* |
(138 |
/ |
382)
|
= |
5.7801047 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Chaparral Elementary
|
42 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
28
|
37
|
42
|
45
|
42
|
194.0 |
38.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 56.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 20.8
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:
