Which of the following is required for a psychological experiment? * a. More than one independent variable b. Sophisticated equipment c. Highly generalizable results d. Precise operational definitions e. A longitudinal design 1 pc
The Correct Answer and Explanation is:
The correct answer is d. Precise operational definitions.
In a psychological experiment, precise operational definitions are crucial for ensuring that variables are clearly defined and measurable. This is important because it allows researchers to accurately manipulate and measure variables, ensuring consistency and reliability in their findings.
Explanation:
- a. More than one independent variable: While some experiments may involve multiple independent variables, it is not a requirement. A psychological experiment can have one or more independent variables, depending on the hypothesis and research design.
- b. Sophisticated equipment: Although some psychological experiments require sophisticated equipment (e.g., neuroimaging tools or specialized software), it is not a necessary condition for conducting a psychological experiment. Many experiments, particularly in behavioral psychology, can be conducted with minimal or basic tools.
- c. Highly generalizable results: While generalizability is a goal in some studies, it is not a requirement for every psychological experiment. Some experiments may focus on specific groups or contexts, and their findings may not be directly applicable to the broader population.
- e. A longitudinal design: A longitudinal design, which involves studying the same participants over an extended period, is useful for studying long-term effects. However, not all psychological experiments require this design. Cross-sectional designs or other experimental designs can be equally effective for answering certain research questions.
The key to any psychological experiment is the ability to clearly define and measure the variables being tested. Without precise operational definitions, it becomes difficult to replicate the study, draw valid conclusions, or ensure that the results are meaningful. Therefore, precise operational definitions are essential for the validity and reliability of any psychological experiment.
