Exam 4: Reliability and Validity

A practice effect may be a problem when studying the results of which of the following?

A test item is considered to have this if it is answered incorrectly a disproportionate number of times by one group compared to another.

Which of the following represents the strongest relationship?

Using the standard error of measurement found in problems 1 and 2, calculate the ranges for each age level if the obtained scores were both 7. Calculate the ranges for both 68% and 95% confidence intervals.

This type of reliability checks the consistency across items of an instrument where credit varies across responses.

A closer estimation of the student's best performance can be calculated by using the ___ score.

Some of the variables of content validity that may influence the manner in which results are obtained and which can contribute to bias in testing include presentation format and response mode.

Generally, when tests measure constructs that are affected by developmental changes, the reliability may not be as good for very young ages. Multiple Choice

When calculating the range of possible scores, it is best to use the appropriate standard error of measurement for the student's ___ provided in the test manual.

What is error in psychoeducational assessment? Does error play into assessing learners with special needs to a greater or lesser extent than typical learners? Discuss.

What is construct validity and what is used to establish it?

The score obtained during the assessment of a student may not be the true score, because all testing situations are subject to chance ___.

Complete the scattergrams using the following sets of data. Determine whether the scattergrams illustrate positive, negative, or no correlation.

On a teacher-made test of math, the following items were included: two single-digit addition problems, one single-digit subtraction problem, four problems of multiplication of fractions, and one problem of converting decimals to fractions. This test does not appear to have good ___.

A twelve-year-old's standard error of measurement for Problem-Solving if the test was administered in the fall

Use the following set of data to determine the mean, median, mode, range, variance, standard deviation, standard error of measurement, and possible range for each score assuming 68% confidence. The reliability coefficient is .85. Data: 50, 75, 31, 77, 65, 81, 90, 92, 76, 74, 88

As long as a test has good validity, the reliability is not important.

The following sets of data are scores on a mathematics ability test and grade level achievement in math for fifth graders. Plot the scores on the scattergram.

Which type of reliability study may yield a lower coefficient, before correction, due to the reduced number of items?

Compare the reliability coefficient obtained by nine-year-olds on the Estimation subtests with the reliability coefficient obtained by seven-year-olds on the same subtest. Which age group performed with more consistency or reliability?