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Basic Elements of a Graph

Basic Elements of a Graph. Axes: Y (vertical), X (horizontal) Axis Labels: Y (R), X (sessions, days, etc.) Units (numbers) for Y and X axes Data points: X-Y plots representing values of R across sessions Phase-change lines: Vertical lines separating experimental conditions

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Basic Elements of a Graph

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  1. Basic Elements of a Graph • Axes: Y (vertical), X (horizontal) • Axis Labels: Y (R), X (sessions, days, etc.) • Units (numbers) for Y and X axes • Data points: X-Y plots representing values of R across sessions • Phase-change lines: Vertical lines separating experimental conditions • Phase labels: Descriptions of experimental conditions

  2. Multiple Plot, More than One Set of Data

  3. Multiple Plot, More than One X Axis

  4. Multiple Plot, Double-Y Axis(Used when data represent different units of measurement)

  5. Bar Graph(Used for Plotting Discontinuous Data)

  6. Frequency Plot versus Cumulative Record Frequency plot: Each data-point value is graphed separately Cumulative record: Each data-point value is added to the previous value

  7. Characteristics of Data Evaluated via Graphical Analysis • Level: Mean (average) value of a set of data

  8. Characteristics of Data Evaluated via Graphical Analysis • Trend: Systematic change in level across measurements

  9. Characteristics of Data Evaluated via Graphical Analysis • Variability: Degree of fluctuation in a data set around its mean

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