Final answer:
Behavioral observation is a research method that involves systematically observing and recording human or animal behavior in a naturalistic setting.However, it is true that behavioral observation may tell a different story than data collected by self-report questions.
Step-by-step explanation:
Behavioral observation is a research method that involves systematically observing and recording human or animal behavior in a naturalistic setting. It does not require recording technology, such as video cameras (option a) and it does not necessarily require a research assistant to be with the participant at all times (option c). However, it is true that behavioral observation may tell a different story than data collected by self-report questions (option d). While self-report methodology relies on participants reporting their own behavior, behavioral observation allows researchers to directly observe and record behavior, which can sometimes reveal discrepancies between what people say they do and what they actually do.