A rehabilitation center researcher was interested in

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A rehabilitation center researcher was interested in examining the relationship between physical fitness prior to surgery of persons undergoing corrective knee surgery and the time required in physical therapy until successful rehabilitation. Data on the number of days required for successful completion of physical therapy and the prior physical fitness status (below average, average, above average) were collected.

(a) Is this study experimental, observational or mixed? Why?

(b) Identify all factors, factor levels, and factor-level combinations.

(d) What is the basic unit of study?

Reference no: EM13604883

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