Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.

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Across: 2. The sum of the scores divided by the number of scores. 3. The square root of the variance. 4. A measure of the degree to which the scores in a distribution are clustered together or spread apart. 5. The distance between the score and the mean. 6. The distance from the mean. 8. The distance from the upper real limit of the highest score to the lower real limit of the lowest score. 9. The 50th percentile.

Down: 1. The mean, median, and mode are all measures of this. 2. The score with the greatest frequency. 3. The sum of the squared deviation scores. 7. The average squared distance from the mean.