FOOD DUDES! Photo Analysis Estimator Training September 2012.
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Transcript of FOOD DUDES! Photo Analysis Estimator Training September 2012.
FOOD DUDES!
Photo Analysis Estimator TrainingSeptember 2012
Photo Naming
Photo names are the number on the sticker, followed by a dash and then either a 1 or 2. 1 indicates “initial”; food prior to consumption 2 indicates “final”; tray after child has eaten
Photo Name: 191815-1 Photo Name: 191815-2
Photo Naming
Name the photo as the ID number indicated on the plate with a -1 or -2.
If a photo is duplicated indicate with a (2). Example: 12347675-2(2)
Once files are named, put them into one folder and they will automatically line up in order.
The Reference tray should be named “0-Reference Tray”. This places the tray at the top of the list.
Sorting Photos
Sort photos into 3 folders: 1. Pairs
all photos that have both a before and an after picture
2. Unmatched Photos that are missing either a before or after
picture 3. Unidentifiable Photos that have an ID number, but you cannot
read it (too blurry or partially covered up). Put in as much of the ID number as you can
read with a “-” or “*” to fill in missing numbers
Before/After
Photo Analysis Overview
Following the protocol, compare photos (“before” and “after”) and record the amount of foods consumed on an excel spreadsheet.
We are focusing on milk, 100% juice, fruit, and vegetables
Your estimates are entered into columns on the prepared Excel spreadsheet
Follow the Protocol
Fruits and vegetables – home or school School:
Look for columns labeled with specific food items served through the lunch line
It will be specified on how to measure item If you find a picture with food item not listed on
the spreadsheet or wrong sheet please contact Alyssa.
Home lunch: Combine all fruits into categories of canned,
fresh, dried or juice Combine all vegetables into categories of cooked,
raw, canned, or juice.
Files on your Flash Drive
Spreadsheet Overview
Spreadsheet Details
Important Reminders!
You are recording the amount consumed (photo 1 – photo 2 = consumption) – not the amount
remaining on the plate!
Always round up to the next “measurable” increment. This is the same for fruits and vegetables measured in
pieces.
Record your estimate in numbers only No words or symbols
Do not make changes to the spreadsheet formulas or columns
Completed Spreadsheet
Accuracy is Important
We need >80% inter-rater agreement Salad tends to be the trickiest to estimate Do your best to estimate on tricky trays but do not
assume or label all as a 999 Use the reference tray photo!
We will provide training as necessary to obtain this level of agreement
We will contact you if your agreement to the “truth” is <80%