Match each of the terms on the left with its definition on the right. Click on the term first and then click on the matching definition. As you match them correctly they will move to the bottom of the activity.
empiricism scientific method theory hypothesis empirical method operational definition instrument validity reliability power demand characteristics naturalistic observation double- variable correlation natural correlation third- third- experiment manipulation independent variable experimental group control group dependent variable self- random assignment internal validity external validity population sample case method random sampling informed consent debriefing | The variable that is manipulated in an experiment. Anything that can detect the condition to which an operational definition refers. A verbal description of the true nature and purpose of a study. A partial collection of people drawn from a population. Two variables are correlated only because each is causally related to a third variable. Those aspects of an observational setting that cause people to behave as they think someone else wants or expects. A technique for gathering scientific information by unobtrusively observing people in their natural environments. A description of a property in concrete, measurable terms. A procedure for gathering scientific information by studying a single individual. A written agreement to participate in a study made by an adult who has been informed of all the risks that participation may entail. A technique for choosing participants that ensures that every member of a population has an equal chance of being included in the sample. Changing a variable in order to determine its causal power. A set of rules and techniques for observation. A property whose value can vary across individuals or over time. A correlation observed in the world around us. An attribute of an experiment in which variables have been defined in a normal, typical, or realistic way. A problem that occurs when anything about a person determines whether he or she will be included in the experimental or control group. A procedure that lets chance assign people to the experimental or control group. The group of people who are exposed to a particular manipulation, as compared to the control group, in an experiment. An observation whose true purpose is hidden from both the observer and the person being observed. The variable that is measured in a study. Two variables are said to "be correlated" when variations in the value of one variable are synchronized with variations in the value of the other. A complete collection of participants who might possibly be measured. A procedure for finding truth by using empirical evidence. The group of people who are not exposed to the particular manipulation, as compared to the experimental group, in an experiment. A falsifiable prediction made by a theory. The tendency for an instrument to produce the same measurement whenever it is used to measure the same thing. A hypothetical explanation of a natural phenomenon. An attribute of an experiment that allows it to establish causal relationships. The goodness with which a concrete event defines a property. The belief that accurate knowledge can be acquired through observation. An instrument's ability to detect small magnitudes of the property. A technique for establishing the causal relationship between variables. The fact that a causal relationship between two variables cannot be inferred from the naturally occurring correlation between them because of the ever- |