Dr.Henderson wants to conduct research to test her theory that there is a causal relationship between sleep patterns and depressive thoughts.What must she do to test this theory?

Question

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To test a theory, Dr. Henderson must collect data systematically. This means she must choose a specific methodology to collect data, decide on a sample and population to study, and ensure her data collection methods are standardized and replicable. Naturalistic observation and self-report methods could be used to collect data, but they are not sufficient on their own. Additionally, she should not rely solely on positive correlations, as negative correlations could also inform her theory. However, collecting data systematically is the most important step in testing her theory.

DrHenderson Wants to Conduct Research to Test Her Theory That