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A popular repeated-measures design is the crossover study.

A crossover study is a longitudinal study in which subjects receive a sequence of different treatments (or exposures).

Biochemical evidence for a deficiency of vitamin B6 in the carpal tunnel syndrome based on a crossover clinical study.

Initial crossover studies and randomized controlled trials support this role.

There are no double-blind crossover studies possible, as there are with medications.

A follow-up double-blind crossover study in 1996 further supported these results, as did a separate study in 1997.

However, a double-blind crossover study published in 1999 failed to find any statistically significant difference.

A randomized crossover study of bee sting therapy for multiple sclerosis.

A crossover study has two advantages over a non-crossover longitudinal study.

These studies are usually run as a crossover study, with volunteers being given two identical doses of the drug while fasted, and after being fed.