Psychology Questions

If someone ranked 3 on a test, we can be sure that he did well on that test

A test is given whose scores range from 0% to 100% correct. Someone with a positive z-score on this test has

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% of his or her norm group

Which of the following is the correct formula for z-scores?

Sharon receives a z-score of 2.5 on ther statistics exam. This means that she is

I give a test in which the mean turns out to be 0 and the standard deviation, 1. If you score on this test is 1.5, then your z-score will be:

Using z-scores gives an individual the potential of comparing test scores on different types of tests

True or false: changing a distribution to standard scores, I can set the mean and standard deviation to be anything I want

Interval level and ratio level measurements are often lumped together under the term

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

The time for a speed runner to run 60 yards is timed, as a function of whether or not he or she had a bowl of spaghetti before running the race. What level of measurement is whether or not the runner ate a bowl of spaghetti?

Each level of measurement inherits the permissible operations of the levels that are

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?

On a normally distributed curve, raw scores may become meaningful if you know the standard deviation and mean of the group.

A testing psychologist wants to see if musical skill and math skill are related. The psychologist asks the math and music teachers to rank in skill levels ten students that they both share in common. The psychologist then correlates the two rankings. What level of measurement is the musical rankings?

The only level of measurement with a true 0 point is

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

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

A man wants to buy a used car. The salesperson says, "This is the best car on the lot for you." What level of measurement is this claim?

30 people with cancer are found, and 10 are randomly assigned to a group that receives chemotherapy, 10 to a group that receives radiation therapy, and 10 receive no treatment. After 2 years, the researchers count the number of people in each group who have survived. What level of measurement is the kind of therapy received?