Young Thomas watches his father hold the door open while his mother walks in. Subsequently, Thomas tries to hold the door for his mother as well. What theory best explains this behavior?

Which of the following scientists won a Nobel Prize in 1981 for

his discovery that the right and left brain hemispheres perform differently on tests of language, perception, music, and other capacities? a. Richard J. Haier b. Roger Sperry c. Paul Broca d. John Dewey

A student researcher wants to study the effect of ultraviolet light on fruit flies; however, when he proposes his research design

he states that he cannot have varying treatment conditions because the independent variable is not a type of therapy for the flies. As his advisor, you state that treatment conditions a) are levels of the independent variable, not necessarily treatment b) are levels of extraneous variables, not necessarily treatment. c) only apply to more advanced species, such as humans. d) only apply to more advanced species, such as mammals.