Exam 15: Measurement and Statistical Methods

About ________ percent of scores fall between the mean and one standard deviation above and below the mean in a normal distribution.

In a frequency histogram, the intervals are usually marked along the ________.

An ordinal scale ________ equal distances between the points and ________ a true zero.

We say that a curve is skewed to the right if the ________.

A count of the number of scores that fall within each of a series of intervals is a ________.

We can predict from a person's score on one measure how she will do on another measure by using the ________.

On a(n) ________ scale, data are ranked from first to last according to some criterion, and the distance between points on the scale are not specified.

The auto theft rates of various cities in a state (for example: 15 thefts per 10,000 population) is an example of a(n) ________ scale.

In a set of incomes in which most people are in the $15,000 through $40,000 range, which measure of central tendency would be most disturbed by an income of $1 million?

If we take a large enough number of measurements of almost any characteristic, the result is most likely to be ________.

The tendency of measurements to cluster around some value near the middle is called the ________.

Which of the following could be a correlation coefficient?

About 68 percent of scores fall between ________ standard deviation(s) above and below the mean in a normal distribution.

Which number tells us the most about how the scores in a frequency distribution are dispersed around the mean?

The mode of the set of scores 16, 17, 21, 17, 2, 17, is ________.

We can say that one measurement is twice as large as another when ________ scales are used.

The probability that an experimenter's results are due to chance is called the ________.

A significance level of .001 means that the odds that the results of an experiment are due to chance are ________.

A hypothetical bell-shaped distribution curve that occurs when a normal distribution is plotted as a frequency polygon is called a(n) ________ curve.

The scores gather at one end of a ________ distribution.