AP Psychology Stats

A carefully worded statement of the exact procedures used in a research experiment is known as

• replication

• operational definition

• hypothesis

• standardization

Research design in which neither the experimenter nor the participants know who is in the experimental group and who is in control group.

• single blind study
• case study
• double blind study

Ms. Costas owns a business with 9 other employees. Her annual salary is $90,000. Her manager's salary is $60,000. Of her other employees, 3 earn $25,000 each and 5 earn $15,000 each.

For this distribution, the mean is?

• Lower than both the median and the mode

• Lower than the median, but higher than the mode

• lower than the mode, but higher than the median

• higher than both the median and the mode

• the same as the median

Which of the following measures can be precisely located on the graph of a skewed distribution without doing any calculations?

• Mode

• Median

• Mean

• Standard deviation

• Variance

A computed measure of how much scores vary around the mean score dependent on the range and square root of total scores.

• inferential statistic

• standard deviation

• descriptive research

• average

Which of the following is the mode for the data set: 4, 4, 5, 6, 7, 7, 7, 8, 9?

• 4

• 7

• 9

"Monday Morning Quarterback" rarely act surprised about the outcome of the weekend football games.  This tendency to believe they knew how the game would turn out is best explained by which psychological principle?

• Overconfidence
• Hindsight Bias
• Intuition
• Illusory Correlation

what is single blind?

• research method in which a researcher manipulates one or more factors while controlling others

• assigning participants to experimental/control group by chance.

• an observation technique in which one person is studied in depth in the hope of revealing universal principles. If the individual studied is atypical, the results may be misleading.

• A research method that helps reduce the chance that participants will guess what a study is about.

Which of the following correlation coefficients expresses the weakest degree of relationship between two variables?

• -0.12

• +1.00

• -0.99

• +0.25

• -0.50

When people have the tendency to think they know more than they do

• Intuition
• Hindsight bias
• Overconfidence
• Perceiving order in random events