Exam 2: The Tools of Psychological Research

The independent variable in an experiment is:

When research participants are uncertain whether they are in the experimental or control group, but the researchers are aware which group each participant is in, the research study utilizes:

Any experimental manipulation must consist of at least two different conditions.

A person would take a(n) ____________________ test to test his or her current level of knowledge or competence in a subject.

On a recent quiz, Ganesa and Javon both scored 7 points, Armand scored 2 points, and Odette scored 4 points.For these four students, the mode for the quiz was:

The students in Dr.Kent's class are normally very active and there is a high level of classroom participation.However, recently there was an observer in the classroom and the participation level was very low.The change in the responsiveness of the students in Dr.Kent's class illustrates the concept of:

One of the main concerns with the case study method of research is that:

In an experiment, the ____________________ is measured by the investigator in order to determine whether it has been affected by the manipulated variable.

External validity refers to:

The measure of central tendency that is affected the most by extreme scores in a set of data is the median.

The value that indicates how much the individual scores in a data set vary from the mean is:

A group of researchers wanted to determine whether animals would be slower in learning a maze when they had been exposed to a particular drug.Half the animals received low doses of the drug, and the other half did not receive the drug.In this study, the experimental group is:

In an experimental study, the experimental group consists of the participants:

Researchers who use surveys can be confident that their results are accurate and reliable as long as they select a random sample that is large enough to accurately represent the population.

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

Dwayne wants to design a good experiment and be sure it has internal validity.In other words, Dwayne wants to avoid:

The behavior that is observed or measured during an experiment is:

What are achievement tests and aptitude tests? How do they differ?

Dale wants to design a good experiment and be sure there are no confounding variables.In other words, Dale wants to avoid:

One reason researchers use naturalistic observation is to: