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Joshua designs a research study to investigate the relationship between two variables: the size of a person's head and i.q. level. he measures each variable without manipulating either of the variables and finds that i.q. is higher for subjects with bigger heads. in the context of correlational research, what can joshua conclude?

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W0lf93
In the context of correlational research, Joshua can concludes that both the IQ level of a person and head size are positively related. In his research he found that a bigger head size generally leads to a higher IQ level. Hence according to his study if person head is large he will have more IQ and vice versa.

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