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.
How to Become a Physical Therapist[About this section] [To Top] Get the education you need: Find schools for Physical Therapists near you! Physical therapists need a Doctor of Physical Therapy (DPT) degree. All states require physical therapists to be licensed. Licensing requirements vary by state but all include passing the National Physical Therapy Examination administered by the Federation of State Boards of Physical Therapy. Several states also require a law exam and a criminal background check.