The physical "height" of a sound wave that tells how much energy the wave contains is called

Questionnaires and interviews are examples of ____

a. ways to generate hypotheses b. faulty research designs c. statistical procedures used to analyze data d. the research method

In Baillargeon's study in which infants were shown possible and impossible events involving a hand, a box, and a platform, the last stage of infants showing understanding of the principle of support was their belief that

a. as long as a hand touched an object, it would not fall. b. the box would not fall as long as some part of it touched the platform. c. the amount of contact between the box and the platform is important. d. the box would fall unless a significant portion of it remained in contact with the platform.