If a control group is a part of an experimental design, one need not worry about controlling for other exogeneous variables. Discuss this statement.
Answer to relevant QuestionsThe Solomon Four Group Design is the answer to all our research questions pertaining to cause and effect relationships because it guards against all the threats to internal validity. Comment. What is internal validity and what are the threats to internal validity? What is meant by operational deﬁnition, when is it necessary, and why is it necessary? “Whenever possible, it is advisable to use instruments that have already been developed and repeatedly used in published studies rather than develop our own instruments for our studies”. Do you agree? Discuss the reasons ...Construct a semantic differential scale to assess the properties of a particular brand of tea or coffee.
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