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

An individual being tested for a gifted program scores a 132 on the Cognitive Ability Test (CogAT), which has a mean of 100 and a standard deviation of 16. There is a .40 correlation between the CogAT score and success as measured by GPA in the gifted program, which has a weighted mean of 4.3 with a SD of .2. Use the Standard Error of the Estimate (SE_est) to predict where this students GPA will fall 68 percent of the time.

NCEs range from 1 to 99 along the bell-shaped curve, but as opposed to percentiles, they are in equal units along curve.

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 sten score?

Fill in the blanks for the information listed below. TRUST Test (Test of Relationship Understanding Under Stress) * Sten scores are generally rounded off, however, in this case, use the non-rounded number given.

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 -Considering the fact that all tests have error, what is this individual's standard score (publisher score; M = 150, SD = 20) 95 percent of the time?

If z = −2.0, which of the following is NOT correct?

A student received a score on a norm-referenced standardized test that was −2 z-scores below the mean. This person scored better than approximately 16 percent of his or her norm group.

A personality test that measures self-actualizing values uses T-scores. On the "self-awareness" scale, Bethany receives a score of 70 while Edwina obtains a score of 40. At approximately which percentiles do these scores fall?

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

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 -Use the national mean of 134 and national standard deviation of 19.0. If an individual received a raw score of 142, what is his or her standard score (publisher score) on the national test if the mean and standard deviation of the publisher score was 150 and 20 respectively?

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. Out of the 1,000 cadets how many were accepted?

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 National Curve Equivalent (NCE)?

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: -Based on a person's Publisher Type Score (where the M = 80 and SD = 20), what range will this person's score likely fall 96 percent of the time?

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

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

Percentiles are a reflection of the distribution of scores along a curve.

Given N = 600, M = 40, SD = 10 (Normal Distribution), approximately how many individuals would you expect to score between 20 and 30?

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 -Approximately what percentage of the group scored higher than this individual?

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 -If a decision was made to use NCE type scores, what score would the individual who obtained a raw score of 142 receive?

No Child Left Behind shows how norm-referenced testing can be used to increase student scores and shows the government's financial commitment to assuring that all children can achieve.