In a paper answer the following questions Jackson 2012 even

In a paper, answer the following questions.

Jackson (2012) even numbered chapter exercises p.244.

What is the purpose of conducting an experiment? How does an experimental design accomplish its purpose.

What are the advantages and disadvantages of an experimental design in an educational study?

What is more important in an experimental study, designing the study in order to make strong internal validity claims or strong external validity claims? Why?

In an experiment, what is control? What is the purpose of a control group? Of simple or multiple comparison groups?

What are confounds? Give an example of a design that has three confounds. Describe three ways to alter the design to address these confounds and explain advantages and disadvantages of each.

What does \"Cause\" mean and whyis it an important concept in research? How are correlation and causation relate

You are a researcher interested to in addressing the question: Does smiling cause mood to rise? (i.e become more positive? Sketch between participants and matched participants designs that address this questions and discuss the advantages and disadvantages of each to yielding data that help you answer the question. Describe and discuss each design in 4-5 sentences.

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