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Researchers must utilize a non-experimental approach when their research question involves investigating a statistical relationship that is inherently non-causal. In such scenarios, the goal is to observe and measure the variables as they naturally exist to determine if they are correlated, without asserting that a change in one variable directly causes a change in the other.

Non-Causal Statistical Relationship

A concrete example of investigating a non-causal statistical relationship is asking whether a correlation exists between verbal intelligence and mathematical intelligence. This research question necessitates a non-experimental approach because it seeks only to measure and determine if two naturally occurring variables are statistically associated, without attempting to manipulate an independent variable or establish that one form of intelligence causes changes in the other.

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