common data systems

frequency

the number of times a behavior occurs - the total count

rate

how many times the behavior occurs during set of time

rate= total count ÷ observation period

duration

how often the behavior occurs from start to stop

dur1 + dur2 + dur3 ÷ total number observed

letency

how long until the behavior occurs -

cue/ signal —1sec 2sec 3sec --behavior

interresponse time - IRT

time between two responses - example time between bites of food

trial-by-trial

recorded data on response after presentation of a discreet learning opportunity

trail 1 2 3 4 5

response x o o o x

correct 3

incorrect 2

IRT

interresponse time

permanent product recording

measuring a physical product produced by target behavior - example how much of the puzzle was completed, how many toys were cleaned up, how many pretzels were eaten

partial- interval recording

occurrence or non occurrence of target behavior during consecutive intervals of time (if it happened at any point during each predetermined time block)

session is 5 minutes and you’re recording every 1 minute.

minute 1 2 3 4 5

behavior o x x o o

strengths and weakness of partial interval recording

strength - quick and easy for learners with frequent behaviors

weakness - it can overestimate how much the behavior is occurring

whole - interval recording

records is behavior happened for the entire duration of intervention

5 minute session with 1 minute intervals

did the behavior last the whole 1 minute? then yes.

intervals 1 2 3 4 5

behavior o x o x x 67%

momentary time sampling - MTS

records whether target behavior occurred right at the end of each interval

MTS

momentary time sampling