Which are characteristics of quasi-experimental research designs that are considered weaknesses,compared with experimental designs?

Question

Quizplus · Accepted Answer

Quasi-experimental designs are weaker than experimental designs because they lack the control that experimental designs have over extraneous variables, making it difficult to make causal assertions. They are also subject to contamination of internal validity, making it difficult to draw accurate conclusions. Finally, findings are likely to be influenced by extraneous variables, leading to less reliable results. Cost of implementation, disruptive nature, and difficulty of implementation are not inherent weaknesses of quasi-experimental designs.

Which Are Characteristics of Quasi-Experimental Research Designs That Are Considered