Exam 3: The Research Enterprise in Psychology Part 1

The most frequent score in a distribution is the

Answering the question of "how" something works is most closely associated with which goal of science?

The FDA found that people who used a particular diet drug combination had more heart valve defects than people who had not taken the diet drug combination. This suggests that the use of the diet drug combination and heart valve defects are

The primary reason descriptive/correlational research cannot determine conclusively that variables have a cause and effect relationship is because in conducting the research

Compared to the other scientific research methods, the principal advantage of the experimental method is it

The main advantage associated with the experimental method is

A correlation between two variables exists when scores on one variable

As correlation coefficients ____, the ability to predict one variable based on knowledge of the second variable increases.

Imagine that the personality traits of openness and extroversion are positively correlated. If Andrea's score in openness is extremely low,

Carla earned 78 points on her statistics exam. Ten of the students in her class earned higher scores than she did, and ten students earned lower scores than she did. Based on this information, you can conclude that Carla's score of 78 points is

By definition, an extraneous variable is

The standard deviation is a measure of

Charley tells you that 17 out of the 30 students enrolled in his English class scored exactly 62 points on the last exam. Conceptually, this is the same as saying

A disadvantage or limitation of the experimental research method is

Trevor plans to study the relationship between people's responses to highly stressful situations and their overall health. He decides he must use correlational research, rather than experimental research, to investigate this problem. Trevor most likely chose a correlational method because correlational studies

Which research method involves a researcher engaging in careful observation of behavior without intervening directly with the subjects?

A tentative statement about the relationship between two or more variables is a(n)

The first step in a scientific investigation is

In experimental research, the researcher manipulates the ____ variable in order to measures its effect on the ____ variable.

David and Alexandra both take part in a research study that is investigating the effects of sleep deprivation on reaction time. David is kept awake for 24 hours straight, while Alexandra follows her normal sleep routine. In this study, David is part of the