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Define Internal And Different Types Of Assessment : Parallel Forms. Reribility

Decent Essays

1. Define parallel forms reliability and split-half reliability. Explain how they are assessed.

Parallel forms reliability is a type of measure of reliability that you can get by doing different types of assessment. They must both have same construct and knowledge system with the same group of people. You must make two parallel forms and create a questionnaire that will have the same system and by random divide the questionnaire into two different sets. Between the two parallel forms whatever correlation is recognized is the reliability. This can be very like split-half reliability. The biggest difference between parallel form reliability and split-half reliability is the way the two are constructed. Parallel forms are done so that both forms are independent of one another and are of equivalent measure. With split-half reliability the whole sample of all the people are calculated and the total score for each randomly divide half.
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2. Define internal and external validity. Discuss the importance of each.

Internal validity is how well or to what degree in which your results likely to the independent variable and not of another explanation. You will use this to test your hypothesis. While external validity is the degree to which your results of the case can be concluded. Internal validity is important to show the cause and effect relationship. It shows if the conclusion is outstanding or lacking. If the study shows a higher degree of internal validity we know that a

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