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FOOD DUDES! Photo Analysis Estimator Training September 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.
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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
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.
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 wordsor symbols • Do not make changes to the spreadsheet formulas or columns
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%