[U5Q] Rodney is accumulating hours toward his BCaBA certification, and his supervisor is assessing his observation skills. The supervisor asks Rodney to record interobserver agreement (IOA) data on their client Sydney’s thumb-sucking behavior at his preschool for a 40-minute period. Out of the twenty 2-minute intervals, either the supervisor or Rodney records that thumb-sucking did not occur in seven of the intervals. The supervisor and Rodney only agreed on the nonoccurrence of thumb-sucking in four of their seven intervals. The supervisor calculates IOA by dividing four by seven to obtain an IOA of 57%. This is an example of:

[U5Q] Ricardo wants to increase his client Marell’s silent reading ability. Ricardo tracks the total number of pages Marell reads each day. Initially, Marell does not read any pages at all, so Ricardo sets 5 pages as the minimum number of pages Marell needs to read to earn a daily reinforcer. For the next 5 days, Marell reads between 4–9 pages and meets the minimum requirement on 4 out of 5 days. Ricardo then sets 7 pages as the minimum number of pages Marell needs to read daily. Marell continues to meet the minimum number of pages read by reading between 7–15 pages a day. Ricardo then sets 12 pages as the minimum number of pages Marell needs to read to earn a daily reinforcer. What should Ricardo consider when using a changing criterion design?

[U6Q] Danielle, a BCBA, implements the first phase of mand training with a young client and assesses its variability. Which type of analysis is Danielle conducting?

[U5Q] Nikola is working with a client who wants to quit smoking cigarettes. The client’s current baseline is one pack of cigarettes per day. Nikola and the client develop a token economy where the client earns a reinforcer for smoking a set number of cigarettes or fewer per day. Each week, the daily allotment decreases by one cigarette. They decide on this rate of change because the client wants to join a running group in about 20 weeks. What should Nikola consider when using a changing criterion design?

[U6Q] What can we conclude from the data in this figure?  

[U5Q] Evan, an RBT, records data on the number of times his client Serena raises her hand during her English class. Evan’s supervisor is uncertain Evan’s data are accurate and sends a BCaBA to the class to collect data to calculate interobserver agreement (IOA). Evan records the following daily counts of hand raising for the week: 12, 3, 7, 8, and 13. The BCaBA’s counts are 9, 2, 5, 6, and 10. The supervisor calculates IOA ratios for the observers for each interval as 0.75, 0.67, 0.71, 0.75, and 0.77. The supervisor then adds the ratios, divides the sum by five observations, and multiplies the quotient by 100 to obtain an IOA score of 73%. This is an example of:

[U6Q] What can we conclude from the data in this figure?  

[U5Q] Mario is working with his client to help increase his daily living skills. After completing tasks, the client enjoys listening to music at a high volume. Mario wants to examine if music is more effective as a reinforcer when it is played at either 80, 90, or 100 decibels. Which analysis would be the best for Mario to use?

[U6Q] What can we conclude from the data presented in the following graph?  

[U5Q] Noah, a BCBA, records data on the number of times his client Katelyn speaks out of turn during her math class. Noah’s supervisor, Mark, is uncertain of the accuracy of Noah’s data and decides to collect data to calculate IOA. At the end of the week, Noah records the number of times Katelyn speaks out of turn as 5, 3, 2, 7, and 9. Mark’s counts are 6, 3, 3, 7, and 11. Mark calculates IOA by determining the percentages of agreement for the observers for each interval as 0.83, 1.00, 0.67, 1.00, and 0.81. The supervisor then adds the ratios, divides the sum by five observations, and multiplies by 100 to obtain an IOA score of 86.20%. This is an example of: