Data Collection

Question 1

Count/frequency

Answer 1

• a simple tally mark

- number of occurrences

Question 2

Rate

Answer 2

combo of count/frequency and observation time
- count every instance
- specify observation time period
use when: behaviors with a clear start and finish
low to mid rates of behavior

Question 3

Duration

Answer 3

amount of time a behavior occurs: onset to the end of the response
good for behaviors that occur for an extended amount of time and with very high rates
duration per occurence, or total duration

Question 4

Latency

Answer 4

measure of time between the onset of a stimuli and a response

• how long does it take for the response after the stimulus
• good for time from instruction and child response
• does not measure the actual behavior

Question 5

Partial Interval Recording

Answer 5

when you take a period of time and break it into smaller intervals

• smaller the interval the more accurate
• score if the behavior occurred at any time during the interval

Question 6

Momentary Time Sampling

Answer 6

period of time broken into smaller intervals

- score if target behavior occurred the moment the interval ends

Question 7

Whole Interval Recording

Answer 7

period of time broken into smaller intervals

• score only if behavior occurs for the entire interval
• no frequency count required

Question 8

Task Analysis Data

Answer 8

good for social behaviors or daily living skills
skills broken down into smaller parts
Data is collected on each step

Question 9

Permanent Product

Answer 9

• measuring outcome of behavior after it has occurred

- observing effects behavior produced in the environment

Question 10

Trial-by-Trial

Answer 10

• discrete trials
• score after ever trial
• response can be classified as -,+, P, etc.
• convert to percentage: correct trials over all trials
• determines if targets are mastered

Question 11

First Trial Data

Answer 11

• Only take data on first trial

- per target

Question 12

Estimation Data

Answer 12

• Hallmark of APF Method
• Estimation should include percentage or number of correct responses, frequency, duration
• subjective
• should be used in conjunction with “hard” data
  (some days you take hard data, some days you take estimation)

Question 13

Preparing for graphing

Answer 13

Ensuring accurate data

Question 14

Ensuring

Answer 14

reliability: you and another agree on data
validity: theres actually a behavior changed
staff trained on measurement systems
Avoid Observer Drift
Avoid Student Reactivity
Taking Interobserver Reliability
Taking Treatment Fidelity Data

Question 15

Preparing for Data Collection

Answer 15

• know the operational definition
• know collection procedures
• trained
• know collection for each goal
• have recording materials ready in working order
• have data sheet ready

Question 16

Graphing

Answer 16

basics:

• input data into graphing program
• clearly label conditions on top of graphs
• data should be grey scale

Question 17

Understanding Graphs

Answer 17

• Two or more interventions should be represented by different symbols
• Label Symbols with legend or arrow and text
• Scaling should be consistent across graphs
• Multiple graphs: sessions only on the bottom, condition labels on the top, numbers on the bottom panel

Question 18

What to Look for in a Graph

Answer 18

• making predictions on the behavior

Question 19

Once it is Graphed

Answer 19

• Supervisor should evaluate changes
• Will suggest how to proceed
• Informs Mastery and Movement