Exam 4: Reliability and Validity

Based on this information, in which grades would you feel that the test would yield more reliable results? Why?

Determine the standard error of measurement given the following information: Standard deviation = 3 Reliability coeffiecient = .51

Which of the following may be determined by analyzing the relationship between two sets of scores?

Educator wants to administer the same test twice to measure achievement of objectives.

The type of reliability that can look at internal consistency by using odd and even numbered items of the same test to compare performance is called which of the following?

The number of times a student moves during elementary school may likely have a ___ to the student's achievement scores in elementary school.

When a teacher gives a test to students on one occasion, repeats the exam on the same students at a later date, and then correlates the scores, the teacher is demonstrating interest in determining which of the following?

Correlation is represented by what symbol?

Which of the following is not used to measure internal consistency?

Using the graph below, answer the questions that follow. -What is the name given to this type of graph?

Here is an example of a negative correlation between two variables. Plot the scores on the scattergram.

When an instrument can predict performance on some other variable, it is considered to have which of the following?

Estimated true score allows you to calculate the amount of error with reference to the distance of the score from the mean of the group.

Which of the following statements is true concerning the relationship between reliability and standard error of measurement?

What happens to the standard error of measurement as the reliability increases?

Compare and contrast reliability and validity.

Which of the following refers to the consistency of scores on a specific instrument across time or across items?

A new academic achievement test assesses elementary-age students' math ability. The test developers found, however, that students in the research group who took the test two times had scores that were quite different upon the second test administration, which was conducted two weeks after the initial administration. It was determined that the test did not have acceptable ___.

When analyzing the correlation illustrated on a scattergram, the closer the approximation of a straight line (indicating a perfect degree of correlation), the nearer the correlation is to which of the following?

No matter how many times a student may be tested, the student's ___ may never be determined.