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# Observation - PowerPoint PPT Presentation

Observation. Defining Behavior page 192. Topography Function Characteristics Duration Latency Frequency Amplitude. Duration. Length of time a behavior lasts Total Duration: Divide total occurrence by the length of the observation.

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## PowerPoint Slideshow about 'Observation' - libitha

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Presentation Transcript

### Observation

• Topography

• Function

• Characteristics

• Duration

• Latency

• Frequency

• Amplitude

• Length of time a behavior lasts

• Total Duration:

Divide total occurrence by the length of the observation.

Example in a 30 minute observation is the student is out of seat for 16 minutes then total occurrence is 16/30=.53

• Length of time between signal to perform and beginning of the behavior

• Behavior must have a discrete beginning

• Situations for using

• How often behaviors occur

• Calculate as rate: 3 episodes in 15 min

• When not to use:

• High occurrence behaviors

• Behavior occurs over prolonged period of time.

• How intense is the behavior

• Objective vs. subjective descriptions of amplitude

• Example:

• whimpering,

• sobbing,

• crying,

• screaming

• Selecting characteristic

• Context for behavior

• Comparison with peers

• Time sampling

• Observation period is divided into intervals.

• Behavior is scored if it occurs throughout the whole interval

• Observation session divided into intervals

• Behavior is scored if it occurs any time during that interval.

• Observation session divided into intervals.

• Behavior is scored if it occurs at the last moment of that interval.

• Most accurate way to estimate frequency

• Continuous recording for shorter observation sessions.