When everybody has an equal chance of being included in a study, this process is called

In order to prove a cause-and-effect relationship, we must use

Neither the researcher nor the subjects knew whether or not they received the drug studied or a placebo.  This is an example of

Dr. Schulte wants to investigate if aggressive behavior in children is increased if they view violent videos.  In this instance, the dependent variable is

Which of the following describes an independent variable within an experiment?

Which of the following correctly describes a dependent variable within an experiment

Describe the relationship between the variables.

In an experiment, one group, the treatment or experimental group, is exposed to the treatment variable being studied; and the other, the control group, is not.

A client whose improvement during therapy is the result of his or her expectation of improvement rather than the result of the therapy itself is showing

A person displays a set of rare behaviors that psychologists had not known about previously, because nobody had ever shown them before. The best strategy to investigate the nature of those behaviors is

Of the following, which research method would be most appropriate for investigating  the relationship between political party membership and attitude toward the death penalty?

John studies the effects of alcohol on the behavior of college students.  For his study, he spends 5 hours  every night for 2 weeks at a bar near a college watching how the patrons  act before and after drinking alcoholic beverages.   John is employing 

Students who do better in high school tend to do better in college.  This is an example of

Experimental research differs from correlational research in that experimental research

Julie appeared not to be surprised when the couple broke up.  “I could have predicted that,” she said.  Julie is demonstrating:

To have a scientific attitude, we should not just believe something we have been told, we should examine the evidence, ask questions and come to our own conclusions.  This process is called

Which measure of central tendency is the exact middle score of a distribution of scores?

The ____ is a measure of the degree of variation among a set of scores from each other.

The tendency to search for information that confirms a preconception is called:

Professor Ober carefully monitors and records the behaviors of children on school playgrounds to track the development of their physical skills. Professor Ober is engaged in:

Researchers who study single individuals in depth in order to uncover general principles of thinking and behavior are using which research method?

Correlational studies differ from experiments in that correlational studies:

Which research design is focused on gathering information about self-reported perceptions or attitudes through questionnaires?

The difference between the experimental group and the control group is defined by the presence of the:

A nonactive substance or condition used to see if the actual drug or condition has any effect beyond expectations is called:

A client whose improvement during therapy is the result of his or her expectation of improvement rather than the result of the therapy itself is showing

What must a researcher do to fulfill the ethical principle of informed consent?

Which ethical principle requires that at the end of the study participants be told about the true purpose of the research?

Which of the following is a potential problem for a case study?

There is a negative correlation between watching TV and grades.  What can we conclude from this research findings?

Johnny is part of a study designed to test the ability of a pill to cure the migraines of people who experience chronic migraines. After a few days, Johnny finds that the pill has alleviated his migraines and he experiences far fewer than usual. However, unbeknownst to Johnny, the pill he has been taking is nothing more than a sugar pill. What effect is Johnny most likely under the influence of?

When everybody has an equal chance of being included in a study, this process is called

Which of the following is a branch of mathematics that helps researchers organize and evaluate data?

In what kind of study does the researcher, but not the participants, know who is part of the control and who is part of the experimental groups.

What measures how spread out the scores of a distribution are?

A bell-shaped curve is considered what type of curve? 

What is it called when there is a change in a patient's physical state that results from the patient's expectation of the treatment?

What might a researcher use to arrange data so they know how often a value occurs?

When a researcher uses a small group of a total population, they are using a ....... 

In which experiment does neither the researcher, nor the participants know who is in the control group and who is in the experimental group? 

In what type of study would a researcher study a group of people for many years?

A numerical method used to determine whether research data supports the hypothesis or the results were due to chance is called

A measure of variability that describes an average distance of every score from the mean is called

This describes the direction and strength of the relationship between two sets of variables.

A situation in which a researcher's expectations influence that person's own behavior is called

A research method that uses people of different ages to study a condition is called 

A research method where a researcher observes the subject in their natural setting without interfering is called

The measure of a relationship between two variables or sets of data is called

In an experiment, researchers measure which variable for change?