Random samples are used in population sampling situations when reviewing historical or batch data. The key to random sampling is that each unit in the population has an equal probability of being selected in the sample.
Individuals pursuing a career as an occupational therapist usually need to earn a post-baccalaureate degree from an accredited college or university or education deemed equivalent.  Education and training. A master's degree or higher in occupational therapy is the minimum requirement for entry into the field.
Although therapists typically need at least a bachelorâs degree in recreational therapy, in some cases therapists may qualify for certification with an alternate combination of education, training, and experience. Therapists must also take continuing education classes to maintain certification.ob prospects will be best for recreational therapists with both a bachelorâs degree and certification. Therapists who specialize in working with the elderly or who earn certification in geriatric therapy may have the best job prospects.