Diagnose or evaluate mental and emotional disorders of individuals through observation, interview, and psychological tests, and formulate and administer programs of treatment.

Investigate processes of learning and teaching and develop psychological principles and techniques applicable to educational problems.

Plan, develop, or conduct surveys. They analyze and interpret the meaning of survey data, determine survey objectives, or suggest or test question wording. Includes social scientists who primarily design questionnaires or supervise survey teams.

Collaborate with field and biology staff to oversee the implementation of restoration projects and to develop new products. They process and synthesize complex scientific data into practical strategies for restoration, monitoring or management.

Plan, develop, and conduct programs to inform public of historical, natural, and scientific features of national, state, or local park.

Research or study range land management practices to provide sustained production of forage, livestock, and wildlife.

Plan or develop coordinated practices for soil erosion control, soil or water conservation, or sound land use.

Build, install, test, or maintain optical or fiber optic equipment, such as lasers, lenses, or mirrors, using spectrometers, interferometers, or related equipment.

Assist electronics engineers in such activities as electronics systems and instrumentation design or digital signal processing.

Assist electromechanical engineers in such activities as computer based process control, instrumentation, or machine design. They prepare layouts of machinery or equipment, plan the flow of work, conduct statistical studies, or analyze production costs.