A(n) _____ is a broad idea or closely related set of ideas that attempts to explain observations and to make predictions about future observations.

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A theory is a broad idea or closely related set of ideas that attempts to explain observations and make predictions about future observations. A hypothesis is a testable prediction about the relationship between variables, while an operational definition is a clear, concise explanation of how a variable will be measured or manipulated in a study. Experimental bias refers to any factors that could influence the outcome of a study in a non-random way.

A(n) _____ Is a Broad Idea or Closely Related Set