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BACB Exam Prep > Measurements > Flashcards

Measurements Flashcards

1
Q

3 Dimensional Quantities

A

RTT
Repeatability
Temporal Extent
Temporal Locus

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2
Q

Repeatability

A

When behavior can be COUNTED

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3
Q

3 Types of Repeatability

A

CRC
Count
Rate
Celeration

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4
Q

Count

A

Add up behaviors

Does not give enough information to make decisions regarding a clients behavior

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5
Q

Rate

A 
Frequency
Add up behaviors or items over time
count/time
Most popular
Must be standard 
Used to record free operants
Should not be used for discrete trials
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6
Q

Celeration

A

Count per unit of time/time
Frequency/time
How rates of response change over time
Celeration trend line through the graphed data shows direction and degree of trend

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7
Q

Temporal Extent

A

Duration of behavior can be measured
Duration- amount of time in which a behavior occurs
Total- Cumulative amount of time in a total session
Duration-per-occurence- duration of target behavior

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8
Q

Temporal Locus

A

Measuring the time at which behavior occurs

Locus=point in time

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9
Q

2 Types of Temporal Locus Measures

A

Response Latency

Interresponse Time

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10
Q

Response Latency

A

Time between onset of a stimulus and initiation of response

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11
Q

Interresponse Time

A 
IRT
Amount of time that elapses between 2 consecutive instances of a response class
When time between responses is important
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12
Q

2 Derivative Measures

A

Percentage

Trials- To- Criterion

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13
Q

Percentage

A

Ratio formed by combining the same dimensional quantities such as count
Expresses proportional quantity of an event
Recommended minimum observation= 30

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14
Q

Trials-To-Criterion

A

A measure of number of response opportunities needed to achieve a predetermined level of performance criteria
Trial depends on the nature of target behavior and desired performance level

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15
Q

2 Definitional Measures

A

Topography

Magnitude

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16
Q

Topography

A

Form or shape of the response

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17
Q

Magnitude

A

Force
Intensity
Severity of behavior

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18
Q

Continuous Measure Procedures

A

Measurement conducted in a manner such that all instance of response class are detected
Useful for free operant, discrete beginning and end
Not useful for high rate behaviors, discrete trials, opportunity based

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19
Q

Discontinuous Measure Procedures

A

Measurement conducted in a manner such that some instances of response class of interest may not be detected
Useful for high rate behaviors
Not useful for free operants

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20
Q

3 Procedures for Measuring Behavior

A

ETT
Event Recording
Timing
Time Sampling

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21
Q

Event Recording

A

Methods to record the number of times a response occurs

Not useful for very high rates of behavior

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22
Q

Timing

A

Used to measure

Duration, Response Latency, IRT

23
Q

Time Sampling

A

Variety of methods for recording behavior during intervals or at specific moments in time
Time sampling methods gives approx.
DIvide observation into equal intervals

24
Q

3 Forms of Times Sampling

A

WPM
Whole Interval Recording
Partial Interval Recording
Momentary Time Sampling

25
Q

Whole interval Recording

A

Divide observation period into a series of brief intervals
At the end of each interval record whether the target behavior occurred throughout the interval
Always percentage
Underestimates rate of behavior

26
Q

Partial Interval Recording

A

Divide observation period in intervals and record whether occured at any time during the interval
Used to rep. proportion
Always percentage

27
Q

Momentary Time Sampling

A

Divide observation period in intervals
At the end of each interval record whether the target behavior occurred at the end of that time interval only
Always percentage

28
Q

Planned Activity Check

A

For groups a variation of Momentary Time Sampling

29
Q

Permanent Product

A

Measuring behavior after it occurred by measuring effects behavior produced on environment
Ex post facto measurement
Event recording, timing and time sampling can be applied to measurement by permanent product

30
Q

When To Use Permanent Product?

A

Are you interested in only the outcome of the behaviors?
Is real time measurement needed?
Can the target behavior be measured by pp?

31
Q

3 Indicators of Trustworthy Measurement

A

VAR
Validity
Accuracy
Reliability

32
Q

Validity

A

Directly measuring target behavior
Measuring dimension relevant to the question
Ensuring data representative of behaviors during times that are relevant

33
Q

Threats to Validity

A

Indirect Measurement
Measuring Wrong Dimension
Measurement Artifacts

34
Q

Measuring Artifacts

A

Discontinuous Measurement
Poorly Schedules Measurement Periods
Insensitive and Limiting Measurement Scales

35
Q

Accuracy

A

Observed value matches the true value

If not Valid, Accuracy is moot

36
Q

Reliability

A

Procedures yield the same value when brought into REPEATED contact with the same state of nature
Repeatability

37
Q

Threats to Reliability and Accuracy

A

Human Error
Poorly Designed measurement systems
Inadequate observer training
Expectations about what the data should look like

38
Q

Observer Drift

A

When observers unknowingly alter the way they measure Bx

39
Q

Measurement Bias

A

Nonrandom measurement error
Overestimating or underestimating the true value
Naive Observers minimizes measurement bias

40
Q

Interobserver Agreement

A

Refers to the degree to which 2 or more independent observers report the same values after measuring the same events

41
Q

AKA of Interobserver Agreement

A

IOA

42
Q

4 Event Recording IOA’s

A

Total Count
Mean Count-per-Interval
Exact Count- per Interval
Trial by Trial

43
Q

Total Count IOA

A

Simplest method
% of agreement between the total number of responses recorded by 2 observers
Overestimates the extent of actual agreement
smaller #/ Larger # X 100

44
Q

Mean Count Per- Interval IOA

A

Dividing observation period into a series of small counting times
Int 1 IOA + Int 2 IOA+ Int N IOA/ Total # Intervals

45
Q

Exact Count Per Interval IOA

A

of Intervals of 100 IOA agreement/ total # of Intervals X 100

46
Q

Trial by Trial IOA

A

of Trials of Agreement/ Total # of Trials X 100

47
Q

2 Timing/Duration IOA’s

A

Total Duration

Mean Duration Per Occurence

48
Q

Total Duration IOA

A

Shorter/ Longer X 100

49
Q

Mean Duration Per Occurrence IOA

A

Duration IOA B1+ Duration IOA B2+ Duration IOA Bn/ n Bx with Duration IOA

50
Q

3 Time Sampling/ Interval Recording IOA’s

A

Interval by Interval IOA

Scored Interval IOA

51
Q

Interval by Interval IOA

A

of Intervals Both Recorders are in Agreement/ Total # Intervals X 100

52
Q

Scored Interval IOA

A

Intervals Both Recorders Recorded Occurrences/# of Intervals at least one recorder recorded occurring X 100

53
Q

Unscored Interval IOA

A

of Intervals Both Recorders Recorded Non- Occurence/ # of Intervals at least one recorded Non- Occurrence X 10

BACB Exam Prep (32 decks)

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