Who developed the concept of "operant conditioning"? pavlov horney thorndike skinner miller?

Which is the BEST explanation why there are twenty times more Portuguese speakers in Latin America, rather than in Portugal?

The fluid-filled chamber which provides a "home" for the developing fetus, as well as insulation from infection and harm, is the:

How are S waves and P waves similar? Select three options. 1. They shake the ground. 2. They travel through solids. 3. They arrive at the same time. 4. They turn into surface waves. 5. They vibrate from side to side.

If a PR campaign of an organization failed to have any impact as it did not address the needs of the target audience at all, then which key skill did the PR personnel of that organization lack?

How the Crusades and the Renaissance influence exploration of the world?

Which of the following is the best example of a solidary benefit? joining a group to be with others like you joining a group to obtain a monetary benefit joining a group because you care about a cause joining a group because it is a requirement of

A landmark California court case, Tarasoff v. Regents of the University of California, dramatically affected the right to confidentiality between client and therapist. This case led to the conclusion that:

Governments in Europe and the United States are?

What is Quentin Tarantino story

In your speech about global warming you tell the class you are the president of the campus eco-club and that the world will end in 2020 when the sun explodes. You deliver your message with confidence, control, enthusiasm, energy, and forcefulness.