The average of a set of scores is referred to as the what?

• Median

• Mode

• Mean

• Range

In the following distribution, what would "8" be considered? 2, 3, 6, 8, 8, 8, 10, 10, 12, 13, 14, 15, 16, 17, 18

• Mean

• Median

• Mode

• Range

The difference between the highest and lowest scores in a distribution is called the what?

• Mean

• Median

• Mode

• Range

When two scores from different types of tests are compared to see if there is a relationship, it is referred to as what kind of statistic?

• Correlation regression

• Standard deviation

• Mean deviation

• Variance

Normally, the statistic that is used to indicate how spread out the scores in a distribution are is:

• Mean

• Median

• Mode

• Standard deviation

A Pearson Product Moment coefficient indicates a degree of what?

• Variance

• Mean deviation

• Correlation

• Median distribution

A sample that gives every member of a population the same odds of being selected is what kind of sample?

• Biased

• Stratified

• Systematic

• Random

A sample that is selected intentionally by a researcher is what kind of sample?

• Convenience

• Random

• Systematic

• Quota

A sample that includes a ratio of randomly selected subjects from two or more sub-groups is called a what?

• Cluster sample

• Stratified sample

• Simple random sample

• Non-probability sample

A list of scores that also shows how many times each score has been achieved is called?

• Frequency distribution

• Cumulative frequency

• Score array

• Data range