Explain the following in terms of its significance in the context of psychological testing

1. Explain the following in terms of its significance in the context of psychological testing h) Group versus individual testing i) World War 1 j) American psychological association k) Standardized achievement tests

Explain Psychology Concepts

a) Norms- what are they? What should you consider when comparing a client’s score with the norms? b) Age and grade equivalent- norms and their limitations. c) Raw score, standardized scores, and percentile scores d) Local versus national norms e) Correlation

Definition of Terms

3. Explain each of the following. a) Internal consistency, homogeneity, and alpha coefficient b) Alternate forms c) Odd-even reliability d) Spearman Brown formula e) Speed test and power test f) Error variance g) Test-retest reliability and time interval between testing

Explanation of Concepts

4. Explain each of the following. If appropriate, give an example. a) Difference between a reliability and validity of a test. b) Can a test be reliable but not valid? Explain through an example. c) Content validity- how is it different from other types of validities? d) What are the differences between the criterion related and the construct validities? e) Concurrent and predictive validities.

Table of a grouped frequency distribution of test scores

Prepare a table of a grouped frequency distribution of test scores with columns for class interval, frequency, cumulative frequency, percentage, cumulative percentage/percentile rank, z-score, and T-score. Explain this table in your own words so that a lay person could understand it.