Final answer:
Roland must include observation and examination in his study to meet scientific standards.
Step-by-step explanation:
Roland wants to ensure that his study of how people interact with one another meets scientific standards. In order to do so, he must include observation and examination in his study. Observation involves systematically watching and gathering data on human interactions, while examination involves analyzing and interpreting that data. By including these two components in his study, Roland can ensure that his research meets scientific standards and contributes to the understanding of human interaction.
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