When marta's sister gives her affectionate hugs and praises her for her accomplishments, this is an example of which type of positive reinforcer?

Gettysburg address question. lincoln uses the images of birth and rebirth in this address. why?

What does a most-favored-nation (mfn) status mean? a country pays the same tariffs as those paid by all mfn countries. a country has a special exemption from all tariffs in the united states. a country has special licensing agreements with u. s. corporations. a country is exempt from product standards that make it expensive for goods to be imported.

This is a crossword assignment for psychology 8 letter word a benefit of observational research is that it often generates