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Chapter 3

Behaviour Modficiation - Chapter 3 Book Notes

5 Pages
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Department
Psychology
Course Code
PSYB45H3
Professor
Zachariah Campbell

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3
Graphing Behaviour and Measuring Change
The primary tool used to document behaviour change is the graph
Recorded information is transferred to a graph
Efficient way to view the occurrence of the behaviour because it shows the results of recordings
during many observation periods
Used to identify the level of behaviour before and after treatment
The long period after treatment on the graph, is called the follow-up period
Components of a Graph
Time and behaviour are the two variables (when the behaviour was recorded, and the level of the
behaviour at that time)
Time is indicated on the horizontal axis (abscissa), level of behaviour is indicated on the vertical
axis (ordinate)
Six components are needed for a graph
1. The y-axis and x-axis (usually longer by one to two times)
2. The labels for the y-axis and x-axis
3. The numbers of the y-axis and x-axis
4. Data points
5. Phase lines: a vertical line on a graph that indicates a change in treatment, such as from a no-
treatment phase to a treatment phase, or vice versa
Data points are not connected across phase lines
Allows you to see differences in the level of the behaviour in different phases more easily
6. Phase labels: appears at the top of the graph above the particular phase
Have at least two phases that are labelled – the no-treatment phase and the treatment phase
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3
Baseline is the label given to the no-treatment phase
The label for the treatment phase should identify the treatment being used
Some graphs have more than one treatment phase or more than one baseline phase
The frequency of a behaviour listed on the data sheet for each day corresponds to the frequency recorded
on a graph for that day
Regardless of the dimension of behaviour that is being graphed, the six components of a graph must be
present
To graph product recording data, you would label the y-axis to indicate the unit of measurement and the
behaviour, for examplenumber of brakes assembled” is a y-axis label that indicates the work output of
a person who puts together bicycle brakes
Research Designs
The purpose of a research design is to determine whether the treatment (independent variable) was
responsible for the observed change in the target behaviour (dependent variable)
An extraneous variable, also called a confounding variable, is any event that the researcher did not plan
that may have affected behaviour
When a researcher shows that a procedure causes target behaviour to change, the researcher is
demonstrating a functional relationship between the procedure and the target behaviour
Behaviour changes as a function of the procedure
Achieved if a target behaviour changes when an independent variable is manipulated, while all
other variables are held constant,
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Description
3 Graphing Behaviour and Measuring Change The primary tool used to document behaviour change is the graph Recorded information is transferred to a graph Efficient way to view the occurrence of the behaviour because it shows the results of recordings during many observation periods Used to identify the level of behaviour before and after treatment The long period after treatment on the graph, is called the follow-up period Components of a Graph Time and behaviour are the two variables (when the behaviour was recorded, and the level of the behaviour at that time) Time is indicated on the horizontal axis (abscissa), level of behaviour is indicated on the vertical axis (ordinate) Six components are needed for a graph 1. The y-axis and x-axis (usually longer by one to two times) 2. The labels for the y-axis and x-axis 3. The numbers of the y-axis and x-axis 4. Data points 5. Phase lines: a vertical line on a graph that indicates a change in treatment, such as from a no- treatment phase to a treatment phase, or vice versa Data points are not connected across phase lines Allows you to see differences in the level of the behaviour in different phases more easily 6. Phase labels: appears at the top of the graph above the particular phase Have at least two phases that are labelled the no-treatment phase and the treatment phase www.notesolution.com
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