8. Graphing

Graphs and Tables

Criteria for Constructing a Table:

     You may construct a horizontal or vertical table. You may construct it by hand or use your computer. Using the computer will make it very easy to add data, to calculate averages, and to turn your table into a graph. The simplest table will be set up with the manipulated variable in one column or row and the responding variable in the other column or row. The variables and units should be labeled and the chart should have a descriptive title.

Bean Plant Growth

Criteria for Constructing a “T” Chart:

• The chart has a title that indicates the relationship between the variables.

• Labels are clearly written and accurately displayed

• Units of measurement (metric only) are clearly written and accurately displayed

• The manipulated/changed/independent variable is in the left column of the “T” chart

• The responding/measured/dependent variable is in the right column of the “T” chart

Criteria for Constructing a Graph:

• The correct graph is chosen to represent the data (example: line, bar, pie)

• Graph should have descriptive title that indicates the relationship between the variables

• Labels, interval scale, and units or measurement are clearly and accurately displayed on each axis

• Manipulated/changed (independent) variable is displayed on the x-axis

• Responding/measured (dependent) variable is displayed on the y-axis

• Data points are clearly and accurately displayed on the x and y axes

• If appropriate, a key is used to identify data on the graph