1. TSW use graphing as a tool in data analysis
Constructing Graphs
TSW use graphing as a tool in data analysis

2. 1. Spacing
Use the entire area given
Pre-plan

3. 2. Scale
Each square must equal the same amount of “X” and “Y”

4. 3. Axes
Usually the IV goes on the X-Axis and the DV goes on the Y-Axis
ALWAYS label both axes…be sure to include units as well

5. It is ALWAYS important to…
Be very accurate
Be very neat
Be sure you know what type of graph to use
Average data if there are multiple trials

6. Other helpful info… Title your graph
Include a legend and label with units if you have multiple lines or bars on your graph
Look hard at your graph…is it clear? Neat? Large enough? Does it show what happened?

7. To analyze a graph, look for a trend
Positive effect of X on Y
* As X goes up, so does Y

8. To analyze a graph, look for a trend
Negative effect of X on Y
* As X goes up, Y goes down

9. To analyze a graph, look for a trend
No effect of X on Y
* As X goes up, Y does not change

10. To analyze a graph, look for a trend
Cannot see a clear trend
* As X goes up, Y goes up and down in no clear pattern

11. To analyze a graph, look for a trend
Positive effect of X on Y, to a point
* As X goes up, Y goes up until a specific level is reached, then there is no effect

12. To analyze a graph, look for a trend
Positive and negative effect of X on Y
* As X goes up, Y goes up. At some point, this reverses and X has a negative effect on Y.