Unformatted text preview: Dependent variable(effect, measuring)- depends on the manipulate of indep. Var. Experimental group “treatment” Control group- comparison group Research method called experimental Evaluating therapies Double-blind procedure In evaluating drug therapies, patients and experimenter’s assistants should remain unaware of which patients had the real treatment and which patients had the placebo treatment. Single blind- experimenter is aware of real treatment but patients are not Random assignment- assigning participants to experimental (breast-fed) and control (formula-fed) conditions by random assignment minimizes pre-existing differences between the two groups....
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- Spring '08
- Correlation Coefficient, Pearson product-moment correlation coefficient, Spearman's rank correlation coefficient