Data and Graphs

Question 1

Data and Graphs
Usage and Why

Answer 1

Used to measure the success, failure or stagnation of a target.
- Data for targets are gathered each session.
- A visual examination of the client’s progress.

Graphs are examined to determine:
● Level: the position of data on the Y axis
● Trend: the direction in which that data is moving
● Variability: the relationship between the data points on the graph

Question 2

Level

Answer 2

The position of data on the Y axis

• Identify the lowest data point and the highest data point to determine the level of a graph.

Question 3

Trend

Answer 3

The direction in which that data is moving
- Show and increase, decrease or no change.

Question 4

Variability

Answer 4

Comparing data points to other data points on the graph.

• Low variability indicates that a behavior is relatively stable.
• High variability indicates that it is changing regularly.
• Variability results in the inability to determine if an intervention is working because the data points do not show consistency in trend or level.

Question 5

X-Axis (abscissa)

Answer 5

Horizontal axis of a graph.
- the dates/time across which the data were collected.

Question 6

Y-Axis (ordinate)

Answer 6

Vertical axis of a graph.
- The numerical data that has been recorded.

Question 7

Slope

Answer 7

Show rates of various behaviors.
- measured by dividing the chan.ge in vertical distance by the change in horizontal distance between two points

Question 8

Phase Change Line

Answer 8

Indicates a change in the phase (condition) of a study.
- e.g. Between the baseline and treatment (intervention) phase(s).
- important in helping determine whether an independent variable had a significant effect on the dependent variable in a study.

Question 9

Data Path

Answer 9

The connection of all of the successive data points within a particular phase