### Sierra Lakes Elementary (Data source)

##### Source data for Sierra Lakes Elementary

#### 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 | 1993478 | 2411 | - | 2436 | = | -25 | * | (130 | / | 392) | = | -8.29081633 | ||

4 | 1993479 | 2466 | - | 2485 | = | -19 | * | (137 | / | 392) | = | -6.64030611 | ||

5 | 1993482 | 2487 | - | 2528 | = | -41 | * | (125 | / | 392) | = | -13.07397959 | ||

Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sierra Lakes 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 | 61310 | 2411 | - | 2436 | = | -25 | * | (115 | / | 372) | = | -7.7284946 | ||

4 | 61313 | 2481 | - | 2485 | = | -4 | * | (120 | / | 372) | = | -1.29032258 | ||

5 | 61315 | 2485 | - | 2528 | = | -43 | * | (137 | / | 372) | = | -15.83602147 | ||

Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sierra Lakes Elementary | -25 |

#### 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 | 63089 | 2407 | - | 2436 | = | -29 | * | (118 | / | 364) | = | -9.4010989 | ||

4 | 63091 | 2457 | - | 2485 | = | -28 | * | (127 | / | 364) | = | -9.76923074 | ||

5 | 63092 | 2505 | - | 2528 | = | -23 | * | (119 | / | 364) | = | -7.51923075 | ||

Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sierra Lakes Elementary | -27 |

#### 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 | 63170 | 2413 | - | 2436 | = | -23 | * | (101 | / | 351) | = | -6.6182336 | ||

4 | 63172 | 2440 | - | 2485 | = | -45 | * | (121 | / | 351) | = | -15.51282048 | ||

5 | 63174 | 2474 | - | 2528 | = | -54 | * | (129 | / | 351) | = | -19.84615382 | ||

Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sierra Lakes Elementary | -42 |

#### 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 | 63441 | 2408 | - | 2436 | = | -28 | * | (111 | / | 335) | = | -9.27761192 | ||

4 | 63442 | 2469 | - | 2485 | = | -16 | * | (102 | / | 335) | = | -4.87164178 | ||

5 | 63443 | 2468 | - | 2528 | = | -60 | * | (122 | / | 335) | = | -21.85074624 | ||

Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sierra Lakes Elementary | -36 |

#### Last steps

##### Compute the average

2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|

-28 | -25 | -27 | -42 | -36 | -158.0 | -31.6 |

##### Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: **-10.6**

##### Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: **-52.6**

##### 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:

2015 | 2016 | 2017 | 2018 | 2019 | |
---|---|---|---|---|---|

Percent | 53% | 62% | 57% | 56% | 56% |

Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |

#### Fontana Unified school district County of San Bernardino

### THIS chart shows what the school system "wants"

### PLUS a "special" or "outside" cause of variation, parent education.

NOT what teachers want.

NOT what principals want.

NOT what parents want.

Sierra Lakes Elementary

*math*proficiency
Zero+ meets standard.

**39% less $meal**

**47% less $meal**

**44% less $meal**

**46% less $meal**

**46% less $meal**

• Any result above zero is proficient; below is not proficient. • There is a 99% chance that results will remain the same in coming years, which is to say, between the Upper and Lower Control Limits (the gray lines). • The houses with the % of students receiving a Free or Reduced Price Meal is a measure of wealth/poverty.