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Chapter 9

PSYB01 Chapter 9 exam prep - key terms.doc

Course Code
David Nussbaum

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Key Terms
Term Page Definition
Baseline phase
279 The period in a single subject design during which the
intervention to be evaluated is not offered to the subject and
repeated measurements of the dependent variable are taken or
Carryover effect 294 An important source of experimental error for a within subjects
design, this problem occurs when the effects from one
treatment condition are carried over to the next
replication (of
single subject
308 Used to enhance generalizability of single subject designs,
clinical replication involves combining different interventions
into a clinical package to treat multiple problems
baseline design
296 A series of A-B designs (although A-B-A or A-B-A-B designs could
also be used) are implemented at the same time for at least
three cases (clients, target, problems, or settings)
Cyclical (cycle) 282 A baseline phase pattern in a single subject design reflecting
ups and downs depending on the time of measurement
replication (of
single subjects
308 Used to enhance the generalizability of a single subject design,
it involves repeating the single subject design, using the same
procedures, by the same researchers, including the same
providers of the treatment, in the same setting, and in the same
situation, with different clients
Duration 285 The length of time an event or some symptom lasts; usually is
measured for each occurrence of the event or symptom in a
single subject design
Frequency 285 In a single subject design, counting the number of times a
behaviour occurs or the number of times people experience
different feelings within a particular time period
Interval 285 In a single subject design, measuring the length of time
between events, behaviours or symptoms
Levels 288 Can also be referred to as conditions; levels are the different
values of an independent variable
Magnitude 285 In a single subjects design, the intensity of a particular
behaviour or psychological state may be measured
baseline design
298 A multiple baseline design in which subjects are randomly
assigned into A-B designs with different baseline phase lengths
Practical (or
287 When evaluating the impact of an outcome (dependent)
variable after and experimental intervention or after a
presumed independent variable has changed for some other
Rate 288 In a single subject design, refers to the increase or decrease in
the trend line of the behaviour or other outcome over time
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