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Download full textSkidmore, Susan – Online Submission, 2008
Experimental designs are distinguished as the best method to respond to questions involving causality. The purpose of the present paper is to explicate the logic of experimental design and why it is so vital to questions that demand causal conclusions. In addition, types of internal and external validity threats are discussed. To emphasize the…
Descriptors: Research Design, Validity, Causal Models, Research Methodology
