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 |
845876 |
2493 |
- |
2436 |
= |
57 |
* |
(115 |
/ |
660)
|
= |
9.93181817 |
| 4 |
845879 |
2515 |
- |
2485 |
= |
30 |
* |
(94 |
/ |
660)
|
= |
4.27272726 |
| 5 |
845880 |
2542 |
- |
2528 |
= |
14 |
* |
(107 |
/ |
660)
|
= |
2.26969697 |
| 6 |
845883 |
2592 |
- |
2552 |
= |
40 |
* |
(129 |
/ |
660)
|
= |
7.8181818 |
| 7 |
845884 |
2596 |
- |
2567 |
= |
29 |
* |
(112 |
/ |
660)
|
= |
4.9212121 |
| 8 |
845887 |
2664 |
- |
2586 |
= |
78 |
* |
(103 |
/ |
660)
|
= |
12.17272727 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Porter Ranch Community
|
41 |
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 |
26585 |
2498 |
- |
2436 |
= |
62 |
* |
(133 |
/ |
678)
|
= |
12.16224184 |
| 4 |
26587 |
2545 |
- |
2485 |
= |
60 |
* |
(110 |
/ |
678)
|
= |
9.73451322 |
| 5 |
26589 |
2563 |
- |
2528 |
= |
35 |
* |
(98 |
/ |
678)
|
= |
5.05899702 |
| 6 |
26590 |
2621 |
- |
2552 |
= |
69 |
* |
(119 |
/ |
678)
|
= |
12.11061946 |
| 7 |
26593 |
2627 |
- |
2567 |
= |
60 |
* |
(116 |
/ |
678)
|
= |
10.2654867 |
| 8 |
26595 |
2636 |
- |
2586 |
= |
50 |
* |
(102 |
/ |
678)
|
= |
7.52212385 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Porter Ranch Community
|
57 |
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 |
27070 |
2491 |
- |
2436 |
= |
55 |
* |
(120 |
/ |
742)
|
= |
8.89487869 |
| 4 |
27072 |
2510 |
- |
2485 |
= |
25 |
* |
(153 |
/ |
742)
|
= |
5.1549865 |
| 5 |
27074 |
2565 |
- |
2528 |
= |
37 |
* |
(121 |
/ |
742)
|
= |
6.03369271 |
| 6 |
27076 |
2610 |
- |
2552 |
= |
58 |
* |
(117 |
/ |
742)
|
= |
9.14555252 |
| 7 |
27077 |
2656 |
- |
2567 |
= |
89 |
* |
(116 |
/ |
742)
|
= |
13.91374656 |
| 8 |
27079 |
2658 |
- |
2586 |
= |
72 |
* |
(115 |
/ |
742)
|
= |
11.15902958 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Porter Ranch Community
|
54 |
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 |
27030 |
2504 |
- |
2436 |
= |
68 |
* |
(118 |
/ |
750)
|
= |
10.69866664 |
| 4 |
27032 |
2528 |
- |
2485 |
= |
43 |
* |
(128 |
/ |
750)
|
= |
7.33866664 |
| 5 |
27034 |
2553 |
- |
2528 |
= |
25 |
* |
(162 |
/ |
750)
|
= |
5.4 |
| 6 |
27036 |
2628 |
- |
2552 |
= |
76 |
* |
(113 |
/ |
750)
|
= |
11.45066662 |
| 7 |
27038 |
2649 |
- |
2567 |
= |
82 |
* |
(115 |
/ |
750)
|
= |
12.57333331 |
| 8 |
27040 |
2700 |
- |
2586 |
= |
114 |
* |
(114 |
/ |
750)
|
= |
17.328 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Porter Ranch Community
|
65 |
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 |
27159 |
2506 |
- |
2436 |
= |
70 |
* |
(136 |
/ |
756)
|
= |
12.59259253 |
| 4 |
27160 |
2541 |
- |
2485 |
= |
56 |
* |
(123 |
/ |
756)
|
= |
9.11111107 |
| 5 |
27161 |
2557 |
- |
2528 |
= |
29 |
* |
(130 |
/ |
756)
|
= |
4.98677246 |
| 6 |
27162 |
2632 |
- |
2552 |
= |
80 |
* |
(143 |
/ |
756)
|
= |
15.13227512 |
| 7 |
27163 |
2673 |
- |
2567 |
= |
106 |
* |
(111 |
/ |
756)
|
= |
15.56349198 |
| 8 |
27164 |
2665 |
- |
2586 |
= |
79 |
* |
(113 |
/ |
756)
|
= |
11.80820102 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Porter Ranch Community
|
69 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
41
|
57
|
54
|
65
|
69
|
286.0 |
57.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 87.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 27.2
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:
