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Cooper Ch. 6: Constructing and Interpreting Graphs
Ashley Harris
19
Psychology
10/09/2015

Term
 Bar Graph
Definition
 A simple and versatile graphic format for summarizing behavioral data; shares most of the line graph's features except that it does not have distinct data points representing successive response measures through time. Also called a histogram.
Term
 Cumulative Record
Definition
 A type of graph on which the cumulative number of responses emitted is represented on the vertical axis; the steeper the slope of the data path, the greater the response rate.
Term
 Cumulative Recorder
Definition
 A device that automatically draws cumulative records (graphs) that show the rate of the responce in real time; each time a responce is emitted, a pen moves upward accross paper that continuously moves at a constant speed.
Term
 Data
Definition
 The results of measurement, usually in quantifiable form; in applied behavior analysis, it refers to measures of some quantifiable dimension of a behavior.
Term
 Data Path
Definition
 The level and trend of behavior between successive data points; created by drawing a straight line from the center of each data point in a given data set to the center of the next data point in the same set.
Term
 Dependant Variable
Definition
 The variable in an experiment measured to determine if it changes as a result of manipulations of the independent variable; in applied behavior analysis, it represents some measure of a socially significant behavior.
Term
 Graph
Definition
 A visual format for displaying data; reveals relations among and between a series of measurements and relevant variables.
Term
 Independent Variable
Definition
 The variable that is systematically manipulated by the researcher in an experiment to see whether changes in the independent variable produce reliable changes in the dependent variable. In applied behavior analysis, it is usually an environmental event or condition antecedent or consequent to the dependent variable. Sometimes called the intervention or treatment variable.
Term
 Level
Definition
 The value on the vertical axis around which a series of behavioral measures converge.
Term
 Line Graph
Definition
 Based on a Cartesian plane, a two-dimensional area formed by the intersection of two perpendicular lines. Any point within the plane represents a specific relation between the two dimensions described by the intersecting lines. It is the most common graphic format for displaying data in applied behavior analysis.
Term
 Local Response Rate
Definition
 The average rate of response during a smaller period of time within a larger period for which an overall response rate has been given.
Term
 Overall Response Rate
Definition
 The rate of response over a given time period.
Term
 Scatterplot
Definition
 A two-dimensional graph that shows the relative distribution of individual measures in a data set with respect to the variables depicted by the x and y axes. Data points on a scatterplot are not connected.
Term
 Semilogarithmic Chart
Definition
 A two-dimensional graph with a logarithmic scaled y axis so that equal distances on the vertical axis represent changes in behavior that are of equal proportion.
Term
 Split-Middle Line of Progress
Definition
 A line drawn through a series of graphed data points that shows the overall trend in the data; drawn through the intersections of the vertical and horizontal middles of each half of the charted data and then adjusted up and down so that half of all the data points fall on or above and half fall on or below the line.
Term
 Standard Celeration Chart
Definition
 A multiply-divide chart with six base-10 (or x 10, /10) cycles on the vertical axis that can accommodate response rates as low as 1 per 24 hours (0.000695 per minute) to as high as 1,000 per minute. It enables the standardized charting of celeration, a factor by which rate of behavior multiples or divides per unit of time.
Term
 Trend
Definition
 The overall direction taken by a data path. It is described in terms of direction (increasing, decreasing, or zero trend), degree (gradual or steep), and the extent of variability of data points around the trend. Trend is used in predicting future measures of the behavior under unchanging conditions.
Term
 Variability
Definition
 The frequency and extent to which multiple measures of behavior yield different outcomes.
Term
 Visual Analysis
Definition
 A systematic approach for interpreting the results of behavioral research and treatment programs that entails visual inspection of graphed data for variability, level, and trend within and between experimental conditions.
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