Short Forms
OPRO-M™ short forms are fixed-length subsets of questions from the OPRO-M™ item bank. Two short forms are available: a 12-item short form and a 20-item short form. The OPRO-M™ 12-item short form is recommended in most situations, including where mobility is a primary outcome (e.g., comparative effectiveness studies) or when important treatment decisions are to be made (e.g., selecting an orthosis for a patient). However, the OPRO-M™ 12-item short form measures with less precision at the extreme ends of the mobility continuum. The OPRO-M™ 20-item short form is more suitable when measuring individuals with very low or very high mobility. The 20-item short form may also be more appropriate for research when comparing minor changes in mobility.
OPRO-M™ short forms can be administered by paper by downloading and printing the PDF files. They can also be administered by computer or tablet through the OPRO-M™ Electronic Administration System.
OPRO-M™ short forms can be administered by paper by downloading and printing the PDF files. They can also be administered by computer or tablet through the OPRO-M™ Electronic Administration System.
Computerized Adaptive Test (CAT)
OPRO-M™ can also be administered as a Computerized Adaptive Test (CAT) that requires few items to produce a reliable T-score. CAT dynamically administers items based on individual responses, and is the most efficient way to administer OPRO-M. However, short forms may be a better option when item-level responses are of clinical value, as different items may be selected at each CAT administration.
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