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Explain the statistical meaning of the following scores: standard score, percentile, z-score, IQ, age equivalent, and grade equivalent. Why is it important to understand the meaning of these terms?

Based on your reading from the text (Salvia et al., 2013), Required Studies, and your own experiences, post a further overview of your understanding of the basic considerations in the assessment process. Address at least three of the following in your response:
1. Describe why is assessment important in school and today’s society?
2. Explain the statistical meaning of the following scores: standard score, percentile, z-score, IQ, age equivalent, and grade equivalent. Why is it important to understand the meaning of these terms?
3. Refer to the Woodcock-Johnson III Normative Update Tests of Achievement scoring table. Plot the standard scores (SS) for Broad Reading, Broad Math, and Broad Written Language on a bell curve (may hand write). Post your bell curve (in any one of the following formats: picture, video, audio, etc.) and show your classmates where this student’s standard scores are falling compared to the student’s peers. Explain your results.
4. Explain three factors that can affect a test’s validity.
Support your statements with evidence from the Required Studies and your research. Cite and reference your sources in APA style 6th edition

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