So high-index plastic lenses are thinner than the polycarbonate lenses and also lightweight. The high-index 1.60 lenses are recommended for prescriptions between -3.00 to -5.50. Not for me. The high-index 1.67 (which I see during my research that Costco offers) is recommended for prescriptions -6.00 to -7.50.
Unformatted text preview: A. Operant B. Reinforced C. OBMod D. Vicarious E. Self-reinforced Vicarious learning, often called observational learning, occurs when a person (the learner) becomes motivated to perform a behavior by watching another person (the model) performing the behavior and being positively reinforced for doing so.
Descriptive Observation and Experiment. 1  Normative observation is discussed on another page.  Observation means studying and gathering information on an activity: of what happens, what your object of study does or how it behaves. Observation is visual: you use your own eyes, perhaps assisted with a camera or other recording instrument.