Explain why the internal and external validity of a study are important in psychological research.Hi there, I am not sure about the word count, jus assuming the number provided in the order. Given to each question about 40 words in the part 2 and 3.

Hi there, I am not sure about the word count, jus assuming the number provided in the order. Given to each question about 40 words in the part 2 and 3.

Reference: Chapter 2

Psychology: An international discipline in context: Australian & New Zealand Edition (Bernstein, Pooley, Cohen, Gouldthorp)

PLEASE NOTE: These questions are based on the material covered in chapter 2 of the textbook but you may need to do some additional ‘net research for some questions. You are not required to ‘get everything right’ in order to achieve the credits – a reasonable attempt at most of the required questions is sufficient. Finally, do not write too much. A few lines per question is sufficient.

Part 1
Answer the following four questions using no less than 300 words (in total) and no more than 500 words (in total).

Explain why the internal and external validity of a study are important in psychological research.
When is it acceptable for psychologists to use animals in their research?
Is deception in psychological research an example of the ‘end justifying the means’?
Consider the following research study and answer the questions that follow.
A researcher is interested in whether the difficulty of examination questions affects students’ course evaluations.

If she wants to determine whether setting a difficult exam produces less favourable comments in students’ course evaluations (i.e. a cause-and-effect relationship), what type of research procedure should she use?
What procedures would she follow in setting up such a study?
What could she select for independent and dependent variables?
Do you think a control group would be important? Why or why not?
How could she control for possible demand characteristics in the study?

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