Exam 3: Research Strategies: How Psychologists Ask and Answer Questions

When Mr.Adams calculated his students' algebra test scores,he noticed that two students had extremely low scores.Which measure of central tendency is affected most by the scores of these two students?

To provide a rough estimate of how similar or diverse a set of scores is,we should calculate the

Statistical reasoning can help us to generalize correctly from a

Which of the following provides the best guidance on the significance of an observed difference between two research samples?

Standard deviation is to mean as ________ is to ________.

Ahmed has five sisters who are 3,3,5,9,and 10 years of age.The number "5" represents the ________ of the sisters' ages.

Seven members of a girls' club reported the following individual earnings from their sale of raffle tickets: $5,$9,$4,$11,$6,$4,and $3.In this distribution of individual earnings,the

Which of the following provides only a rough indication of the degree of variation among a set of scores?

Approximately what percentage of the cases represented by the normal curve fall between ‒3 and +3 standard deviations from the mean?

The ________ can be a particularly misleading indication of what is average for a ________ distribution of scores.

Seven members of a boys' club reported the following individual earnings from their sale of cookies: $2,$9,$8,$10,$4,$9,and $7.In this distribution of individual earnings

If IQ scores are normally distributed,having a mean of 100 and a standard deviation of 15,approximately what percentage of people have IQ scores between 85 and 115?

A lopsided distribution of scores in which the mean is much larger than both the mode and median is said to be

Professor Woo noticed that the distribution of her students' scores on the last biology test had an extremely small standard deviation.This indicates that the

As the size of a representative sample increases,the ________ of that sample is most likely to decrease.

Approximately 95 percent of the cases represented by the normal curve fall within ________ standard deviation(s)from the mean.

When an arithmetic average is reported in the news,it is most important for readers to

Seven members of a debate club reported the following individual earnings from their sale of cakes: $7,$13,$3,$5,$2,$9,and $3.In this distribution of individual earnings,the

If half the students at Quincy University have blue eyes,which of the following events is most probable?

Approximately what percentage of the cases represented by the normal curve fall between -2 and +2 standard deviations from the mean?