Exam 2: Norms and Basic Statistics for Testing

A Z score

Within the quartile system, the second quartile is the

Many feel that the difference between an IQ of 100 and 105 is not the same as the difference between an IQ of 70 and 75. These people feel that IQ tests lack ____.

The particular score below which a defined percentage of scores falls is known as a

Suppose you are in the 87th percentile on a test. This means

Explain the process of standardization. Why is it that any system of standardization works equally well?

Which type of scale simply ranks observations?

A score at the 50th percentile is approximately how many standard deviations above the mean?

A scale that allows one to determine only if there is more, less, or an equal amount of the attribute in comparison to another observation is called a(n)____ scale.

The mean of a distribution of Z scores is always

In the standard normal distribution,

A measure of how much scores within a distribution differ among themselves is the

List the steps for going from raw scores to stanines.

In which scales can you make meaningful interpretation of an arithmetic operation such as addition?

A scale that allows us to rank individuals or objects, but not to say anything about the meaning of the differences between the ranks, is a(n)

Which type of scale does not permit mathematical manipulations?

What scoring system is standardized to have a mean of 5 and a standard deviation of approximately 2?

Logical deductions about events that cannot be observed directly are referred to as

In order to rank group members in relationship to the number of other members of groups of arbitrary size, you would use the

If you score in the upper quartile,