Dr.Patterson concludes from her research that using a systematic study strategy CAUSED good grades for students assigned to a particular group.For this conclusion to be valid,the type of research that was performed must have been what type of study?

Question

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The conclusion that a systematic study strategy caused good grades suggests that there was a manipulation of an independent variable (the use of a study strategy), a control group (students not using the strategy), and a dependent variable (grades). This is characteristic of an experimental study design. Correlational studies do not establish causation, while descriptive and observational study designs do not manipulate variables.

DrPatterson Concludes from Her Research That Using a Systematic Study