Which of the following words is the most likely to be among a U.S. toddler's first 10 words?

After explaining to parents and children the purpose of the research project, how it will be conducted, and the risks and benefits expected, the researcher must obtain ________ from parents and children

a. a debriefing b. a confidentiality pact c. a promise that participants will complete the study d. informed consent

What format do some personality tests use because it requires an absolute judgment?

a. multiple-choice b. Likert c. dichotomous d. category