Percentage
- we need to know the total number of opportunities that were observed and the number of spontaneous responses.
- shows us a ratio that forms a proprotional quantity of an event in terms of the number of times the event occurred per 100 opportunities that the event could have occurred.
- proportion of client's spontaneous manding vocalizations
- takes a ratio of two dimensional quantities and expresses the proportional quantities of some event by the # of times it occurred per 100 opportunities that the event could have occurred.
- example, "proportion" of words read correctly.
- is calculated by the number of occurrences by the number of opportunities and then multiplying by 100.(ratio multiplied by 100)
Repeatability
- think #count, #countability
- when the same behavior occurs multiple times over time(instances of a response class can occur repeatedly through time)
- is when a behavior can be counted, used to measure frequency, rate and celeration
Rate
- Count/time
Frequency #free operent bx #discrete bx
- is best used to collect data on behaviors that have a clearly defined onset and offset.
- frequency can either by used as an AKA for "count" or "rate", it is BCBAs choice.
Count
- the number of times the behavior coours.