(Answered) Question 1 a explain what is meant by the terms

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Question 1. a. Explain what is meant by the terms ‘internal validity', ‘external validity', and ‘reliability'.

b. Briefly describe the relationship between external validity and reliability. Briefly discuss whether an experimental finding can be both reliable and externally valid.

c. Explain what is meant by the terms nominal scale, ordinal scale, and intervalscale, and given an example of each.

d. Assume you are assessing self-esteem with a scale that measures from 1 ("low self-esteem") to 7 ("high self-esteem"). Would this be an ordinal scale or an interval scale? Provide justification for your answer.

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