### Los Penasquitos Elementary (Data source)

##### Source data for Los Penasquitos 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 | 2207551 | 2484 | - | 2436 | = | 48 | * | (84 | / | 287) | = | 14.04878045 | ||

4 | 2207552 | 2517 | - | 2485 | = | 32 | * | (107 | / | 287) | = | 11.93031357 | ||

5 | 2207555 | 2556 | - | 2528 | = | 28 | * | (96 | / | 287) | = | 9.36585364 | ||

Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Los Penasquitos Elementary | 35 |

#### 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 | 67761 | 2497 | - | 2436 | = | 61 | * | (82 | / | 288) | = | 17.36805554 | ||

4 | 67764 | 2534 | - | 2485 | = | 49 | * | (95 | / | 288) | = | 16.16319444 | ||

5 | 67766 | 2561 | - | 2528 | = | 33 | * | (111 | / | 288) | = | 12.71874998 | ||

Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Los Penasquitos Elementary | 46 |

#### 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 | 69563 | 2494 | - | 2436 | = | 58 | * | (87 | / | 286) | = | 17.64335663 | ||

4 | 69565 | 2521 | - | 2485 | = | 36 | * | (100 | / | 286) | = | 12.58741256 | ||

5 | 69567 | 2565 | - | 2528 | = | 37 | * | (99 | / | 286) | = | 12.8076923 | ||

Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Los Penasquitos Elementary | 43 |

#### 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 | 69726 | 2505 | - | 2436 | = | 69 | * | (74 | / | 265) | = | 19.26792453 | ||

4 | 69728 | 2532 | - | 2485 | = | 47 | * | (96 | / | 265) | = | 17.02641505 | ||

5 | 69729 | 2549 | - | 2528 | = | 21 | * | (95 | / | 265) | = | 7.52830189 | ||

Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Los Penasquitos Elementary | 44 |

#### 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 | 70247 | 2476 | - | 2436 | = | 40 | * | (77 | / | 265) | = | 11.62264148 | ||

4 | 70248 | 2535 | - | 2485 | = | 50 | * | (94 | / | 265) | = | 17.73584905 | ||

5 | 70249 | 2568 | - | 2528 | = | 40 | * | (94 | / | 265) | = | 14.18867924 | ||

Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Los Penasquitos Elementary | 44 |

#### Last steps

##### Compute the average

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

35 | 46 | 43 | 44 | 44 | 212.0 | 42.4 |

##### Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: **54.4**

##### Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: **30.4**

##### 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:

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

Percent | 42% | 44% | 39% | 45% | 43% |

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

#### Poway Unified school district County of San Diego

### 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.

Los Penasquitos Elementary

*math*proficiency
Zero+ meets standard.

**32% less $meal**

**33% less $meal**

**31% less $meal**

**38% less $meal**

**35% 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.