With which of the following do animals most easily associate stomach illness?

Terrence is working on his psychology term paper on "creativity." To find information about his topic, he goes to a specialized online database offered by the American Psychological Association. He searches for his topic by

entering the key words with each record in this database consisting of an abstract plus notes about the author, title, and source. This database is known as a. PsykTrek. b. PsycGoogle. c. PsycINFO. d. PsychNOW.

According to research presented in the text, students shot a roll of film and printed two photographs. Some were told that they could exchange the one they chose to keep within five days, but others were told that their choice was final

What was the dependent variable of this experiment? a. condition: choice or no choice b. condition: photograph 1 or photograph 2 c. how much they liked the photos d. the five day exchange period