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Table 1 A Multiple Cause Indicator Measurement Model in the HAQ Disability Index

From: Extending basic principles of measurement models to the design and validation of Patient Reported Outcomes

Can you:

Without ANY Difficulty

With SOME Difficulty

With MUCH Difficulty

Unable To Do

Dress, including tying shoelaces

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Shampoo your hair

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Stand up from a straight chair

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Get in and out of bed

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Cut your meat

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Lift a full cup or glass to your mouth

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Open a new milk carton

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Walk outdoors on flat ground

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Climb up five steps

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Wash and dry your body

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Take a tub bath

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Get on and off the toilet

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Reach and get down a five pound object

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Bend down & pick up clothing from floor

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Open car doors

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Open jars which have been opened

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Turn faucets on and off

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Run errands and shop

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Get in and out of a car

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Do chores i.e. vacuuming or yard work

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