Observing the ___________ under study forms a portion of experimental research?
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Answer: A. object
Explanation
Observing the object under study forms a core portion of experimental research. Systematic observation allows researchers to record dependent variable changes. Direct observation ensures empirical data is gathered accurately during trials. Empirical observation is the cornerstone of scientific investigation methods. Researchers use specialized instruments to observe phenomena beyond human senses. Standardized observation protocols minimize observer bias during experiments.
Biologists observe cellular reactions under microscopes during laboratory experiments. Psychologists monitor subject behavior behind one way mirrors in trials. Accurate observation provides the raw data needed for statistical analysis. Option B uses universe, which refers to entire populations rather than study objects. Option C incorrectly combines object and universe into a single choice. Option D is wrong because the correct option is explicitly listed.
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