Exam 1: Tiinking Critically With Psychological Science

The hindsight bias refers to people's tendency to

Participants in an experiment are said to be blind if they are uninformed about

To discover the extent to which economic status can be used to predict political preferences, researchers are most likely to use

Which technique involves repeating the essence of an earlier research study with different participants and in different circumstances?

A research method in which an investigator manipulates factors that potentially produce a particular effect is called a(n)

The most foolproof way of testing whether a newly introduced method of psychological therapy is truly effective is to use

Distinguishing between an experimental group and a control group is most relevant to specifying the nature of

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

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

Jean Piaget developed his ideas about children's thinking after carefully observing and questioning only a few children. Which research method did he use?

To assess the effectiveness of flu vaccine for county residents, Mr. Carlson wants to administer vaccine injections to all county residents rather than give half of them a placebo injection. Mr. Carlson is most clearly underestimating the importance of

What is the mode of the following distribution: 8, 2, 1, 1, 3, 7, 6, 2, 0, 2?

Ethical principles developed by psychologists urge investigators to

Displaying data in a scatterplot can help us see the extent to which two variables are

The placebo effect best illustrates the impact of ________ on feelings and behaviors.

On a series of coin tosses, Oleg has correctly predicted heads or tails seven times in a row. In this instance, we can reasonably conclude that Oleg's predictive accuracy

To study some effects of alcohol consumption, Dr. Chu tested the physical coordination skills of 21-year-old men who had just drunk either 4, 2, or 0 ounces of alcohol. In this study, the independent variable consisted of

Our tendency to believe we know more than we do illustrates

Which of the following is a measure of the degree of variation among a set of scores?

To compare the pace of life in different countries, investigators measured the speed with which postal clerks completed a simple request. Which research method did this illustrate?