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1)A hypothetical explanation of a natural phenomenon.
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2) An idea about how and why things work the way do. |
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1) A falsifiable prediction made by a theory.
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2) An idea that has not been tested
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| A set of principle about the appropriate relationship between ideas and evidence. |
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| The belief that accurate the knowledge can be acquired through observation. |
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| Steps of Scientific Method |
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| Theories---->Hypotheses---->Research Observation |
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| Validity, Power, Reliability |
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| The extent to which a measurement and a property are conceptually related |
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| The tendency for a measure to produce the same measurement whenever it is used to measure thing. |
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| The ability of a measure to detect the concrete condition specified in the operational definition. |
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| A device that can detect the condition to which an operational definition refers. |
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| A device that measures muscle contraction under the surface of a person's skin. |
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| Those aspects of an observational setting that cause people to behave as they think should. |
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| A Technique for gathering scientific information by unobtrusively observing people in their natural environment. |
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| Two variable are said "to be correlated" when variations in the value of one variable are synchronized with variations in the value of other. |
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| A property whose value can vary across individuals or over time. |
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| A measure of the direction and strength of a correlation which is signified by the letter r. |
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| A correlation observed in the world around us. |
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| Third-Variable Correlation |
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| The fact that two variable are correlated only because each is casually related to a third variable. |
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| Technique whereby the participants in two groups are identical in terms of a third variable. |
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| A technique for establishing the casual relationship between variable. |
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| The Creation of an artificial pattern of variation in a variable in order to determined its casual power. |
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| The variable that is manipulated in an experiment. |
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| The group of people who are not treated in the particular way that the experiment group is treated in an experiment. |
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| The group of people who are treated in particular way, as compared to the Control Group, in an experiment. |
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| The variable that is measured in a study. |
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| A problem that occurs when anything about a person determines whether he or she will be included in the experimental or control group. |
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| A procedure that uses a random event to assign people to the experiment or control group. |
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| The characteristic of an experiment that establishes the casual relationship between variable. |
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| A property of an experiment in which the variables have been operationally defined in a normal, typical, or realistic way. |
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Definition
Most frequently occurring score in a distribution.
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Definition
Score in the exact middle of a distribution that has been ranked from highest to lowest |
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Definition
Measure of central tendency that is arithmetic average |
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