Psychologist Edwin Twitmyer at the University of Pennsylvania in the U.S. discovered classical conditioning at approximately the same time as Pavlov was conducting his research . 1 However, the two were unaware of each other's research in this case of simultaneous discovery, and Pavlov received credit for the findings.
Definition of generation for English Language Learners. : 1  a group of people born and living during the same time. : 2  the people in a family born and living during the same time. : 3  the average length of time between the birth of parents and the birth of their children.
The proper definition of a generation is that ONE Century is equal to exactly THREE generations, hence one generation is 33 1/3 years!!!