Behaviour Modification ch3.docx

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4 Apr 2012

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Behaviour Modification Chapter 3 January 31,2012
Graphing Behaviour and Measuring Change
- The primary tool to use to graph behaviour change is graphing
- A graph is a visual representation of the occurrence of a behaviour over time
- a graph is efficient because it shows the results of recording during many observation periods
- graph makes it easier to compare the levels of the behaviour before, during and after treatment
Components of a Graph
- each data point on the graph gives us when the behaviour was recorded and the level of behaviour at that
- time is indicated on the horizontal axis (abscissa) and the level of behaviour on the vertical axis (ordinate)
- 6 components are necessary in order for a graph to be complete:
o The y axis and the x axis x is longer then the y-axis
o The labels for the y and x axis
o The number of the y and x axis on y they represent the units of measure of the behaviour and
the x represent the units of measurement of time
o Data points the level of behaviour that occurred at each particular time period
Taken from the data sheet and is connected to the adjacent data points by a line
o Phase lines a vertical line on the graph that indicates a change in the treatment
A phase is a period in which the same treatment is in effect
Data points are not connected across phase lines
o Phase labels appears at the top of the graph above the phase
usually labelled the non-treatment and the treatment phase
``baseline`` is the label usually given to the non-treatment phase
The ``behavioural contract `is the particular treatment that the student is using to
increase studying
Graphing Data from Different Recording Procedures
- What will change with different recording procedures is the y-axis label and the numbering on the y-axis
- The y-axis labels identifies the behaviour (ex. correct math problems) and the types of data that is
recorded (ex. percentage)
- Other aspects of behaviour like intensity and product data can be graphed and in each case the y-axis
should show the behaviour and the dimension or aspect of the behaviour that is recorded
- Ex. Tantrum Intensity Rating and put the rating scale of the y-axis, ``Decibels of Speech`` with decibel
levels on the y-axis.
- To graph product recording data would label the y-axis to indicate the unit of measurement and the
behaviour ex. ``Number of Brakes Assembled`` indicates the work output for someone who puts together
bicycle brakes
Research Designs
- The purpose of a research design is to determine whether the treatment was responsible for the observed
change in the target behaviour and to rule out the possibility of extraneous variables causing the
behaviour to change
- Independent variable what the researcher manipulates to produce change in the target behaviour
- Dependant variable the target behaviour
- Confounding variable any event that the researcher did not plan that may have affected the target
- When you show that the modification procedures are what brought the change that is called the
functional relationship
- This is established when:
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