A two-month-old infant is babbling and cooing as her mother responds by repeating the same sounds. This parent and child are engaged in prelinguistic communication

Some research has shown that classical conditioning and/or

observational learning has been noted in animals with very small cerebra, including honeybees and starfish. Other research has failed to consistently support these findings. This is a problem for which principle of critical thinking? A) Extraordinary claims B) Replicability C) Correlation vs. causation D) Occam's Razor

As part of a psychology experiment, Brett

decides to measure a person's "anxiety" by noting the number of blinks a person makes in a twenty minute social interaction with a stranger. Brett appears to have offered a(n) ________ of anxiety. a) variable b) operational definition c) theory d) hypothesis