Which of the following studies is considered research with human subjects?

The correct choice is based on the definition of research involving human subjects. Research with human subjects typically involves direct interaction or intervention with individuals to collect data regarding their behaviors, opinions, or characteristics.

In this context, the computer-based study on problem-solving behaviors likely includes participants who engage in tasks or respond to scenarios designed to assess their cognitive processes. This interaction with individuals qualifies it as research with human subjects, as it gathers information based on human behavior.

The other options do not fit the criteria for research involving human subjects. A class discussion involves sharing ideas and opinions but doesn't systematically gather data from individuals for research purposes. A comparison of publicly available blog comments does not involve interaction with the individuals who wrote the comments, making it more about analyzing existing data rather than engaging with human subjects. Lastly, meeting with a superintendent to gather data may be more related to organizational research or interviews rather than research focused directly on interacting with human subjects, unless it involves a broader context of studying human behaviors or responses systematically. Thus, the choice related to the computer-based study is the most aligned with research involving human subjects.