How can you improve reliability and validity in testing


Assignment

Standardized testing involves using testing instruments that are administered and scored in a pre-established standard or consistent manner. There are two types of standardized testing instruments: norm-referenced tests and criterion-referenced tests. The former testing instruments yield scores that compare the examinee's scores to that of a representative sample (the normative group) of same-age or grade peers. The latter type of testing instrument involves comparing an examinee's score to a predetermined criterion (such as a school curriculum).

a. How do you calculate mean, median, mode, and standard deviation?

b. What are percentile ranks, standard deviations, z scores, T scores, and stanine scores?

c. How can you improve reliability and validity in testing?

d. What do results of achievement, aptitude, and diagnostic tests tell teachers?

e. How would you prepare students (and yourself) for taking standardized tests?

f. What are the strengths and weaknesses of alternative forms of assessment such as portfolios?

Format your assignment according to the give formatting requirements:

a. The answer must be double spaced, typed, using Times New Roman font (size 12), with one-inch margins on all sides.

b. The response also includes a cover page containing the title of the assignment, the course title, the student's name, and the date. The cover page is not included in the required page length.

c. Also include a reference page. The references and Citations should follow APA format. The reference page is not included in the required page length.

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