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Which of the following hormones increases and prolongs effects of the sympathetic nervous system?
Operational Definitions
Explicit, precise statements about how variables are measured or defined in the context of a research study.
Research Questions
Specific questions that a study seeks to answer, guiding the direction and focus of the research.
Double-Blind Study
A study design in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias in research results.
Experimental Design
A procedure in research for testing hypotheses where one or more variables are manipulated to determine their effect on a dependent variable.
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