NSU Psych 101 Word Scramble
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Term | Definition |
theory | A broad idea or set of closely related ideas that attempts to explain certain observations. |
variable | Anything that can change |
operational definition | An objective description of how a research variable is going to be measured and observed |
hypothesis | An idea that is arrived at logically from a theory. It is a prediction that can be tested. |
population | The entire group about which the investigator wants to draw conclusions. |
sample | The subset of the population chosen by the investigator for study. |
naturalistic observation | Observation of behavior in real-world settings with no effort made to manipulate or control the situation. |
standardized test | A test that requires people to answer a series of written or oral questions or sometimes both. |
case study | An in-depth look at a single individual; also known as a case history. |
correlational research | A research strategy that identifies the relationships between two or more variables in order to describe how these variables change together. |
longitudinal design | A special kind of systematic observation that involves obtaining measures of the variables of interest in multiple waves over time. |
true experiment | A carefully regulated procedure in which one or more variables believed to influence the behavior being studied are manipulated while all other variables are held constant. |
independent variable | The manipulated experimental factor in an experiment. |
dependent variable | A factor that can change in an experiment in response to changes in the independent variable. |
experimental group | A group in the research study whose experience is manipulated. |
control group | A comparison group that is as much like the experimental group as possible and is treated in every way like the experimental group except for the manipulated factor. |
descriptive statistics | Mathematical procedures that are used to descirbe and summarize sets of data in a meaningful way. |
mean | A statistical measure of central tendency that is calculated by adding all the scores and then dividing by the number of scores. |
median | A statistical measure of central tendency that falls exactly in the middle of a distribution of scores after they have been arranged or ranked from highest to lowest. |
mode | A statistical measure of central tendency: the score that occurs most often. |
range | A statistical measure of variability that is the distance between the highest and lowest scores. |
standard deviation | A statistical measure of variability that involves how much the scores vary on the average around the mean of the sample. |
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