Exam 7: Statistical Concepts: Creating New Scores to Interpret Test Data

Assume a normal curve and that the mean of the raw scores is 8, the standard deviation is 2.65, and the test-retest reliability is .84. If an individual who is in grade 5.6 received a score of 10, answer the following questions: - What is the SAT Type Score?

Match the standard score with its mean and standard deviation. -ACT

Assume a normal curve and that the mean of the raw scores is 8, the standard deviation is 2.65, and the test-retest reliability is .84. If an individual who is in grade 5.6 received a score of 10, answer the following questions: - What is the Publisher Type Score (given that the M = 80 and SD = 20)?

Assume a normal curve and that the mean of the raw scores is 8, the standard deviation is 2.65, and the test-retest reliability is .84. If an individual who is in grade 5.6 received a score of 10, answer the following questions: - What is the stanine?

Joshua obtained a score of 550 on the SATs (M=500, SD=100) and a score of 95 on the WAIS-III (M=100, SD=15). On which test did he do better?

If you convert a group of z-scores to DIQ's, you will:

If an individual's percentile rank is 84, he or she got 84 percent of the items correct.

Assume a normal curve and that the mean of the raw scores is 8, the standard deviation is 2.65, and the test-retest reliability is .84. If an individual who is in grade 5.6 received a score of 10, answer the following questions: -What is the T score?

Which scale of measurement would you use if measuring height and weight differences among ethnic groups?

On normally distributed curves, which of the following is NOT true?

Match the type of scale with the definition. -Nominal scale

Match the standard score with its mean and standard deviation. -DIQ

In order to evaluate a graduate program in psychology, a decision is made to compare the scores of the recent graduates on the national licensure exam to scores nationally. The internal consistency reliability of the test = .84. The program therefore follows up with their students and finds 24 students who have taken the exam in its most recent form. The scores of the students in the program are as follows: Given information: Mean = 144; Median = 142; Mode = 142; Range = 50 -Find the interquartile range.

Which of the following represents the best description of a DIQ?

Match the type of scale with the definition. -Ordinal scale

Which statement is usually NOT true about all norm-referenced standardized achievement tests?

A test to measure psychotic tendencies was given to a group of 1,000 potential air force cadets who wished to work in nuclear silos. Any cadet who scored at or over 64 would be eliminated. The mean of the test was 52 and the standard deviation was 12. Of the following scores, which is the highest z-score someone could receive and still be accepted to work in the silos?

Which of the following is NOT always true?

If z = 3.0, which of the following is NOT correct?

Assume a normal curve and that the mean of the raw scores is 8, the standard deviation is 2.65, and the test-retest reliability is .84. If an individual who is in grade 5.6 received a score of 10, answer the following questions: -Scores with this instrument correlate .50 with 6^th grade GPA. If the 6^th grade GPA has a mean of 3.0 and a SD of .3, predict the GPA range this students grades will fall 68 percent of the time.