Consider the following sequence: X F D U. How many perceptual chunks is this? 

Engineers create a patient management system to be used in operating rooms; the purpose of the patient management system is to reduce human error in tasks such as medication errors, order of operations during surgery, and exposing patients to common allergens such as latex and penicillin. The system is installed in a hospital in Charlotte, NC. Under normal conditions, the system works well, but if physicians need to edit the patient details, they often have trouble making the edits correctly. In one procedure, a physician accidently put in the wrong weight when reprogramming the computer and nearly gave a patient a lethal dose of medication. From a systems perspective, what has most likely happened? 

We are going to test the effects of brightness of traffic signal bulbs on driver perception of traffic signals. We’d like to test the existing design as well as four additional levels of brightness. What is the best experimental design for this setting? 

When conducting a cost benefit analysis to justify a human factors analysis, which of the following would NOT be a good justification focus? 

We discussed several types of analyses that are important when we are designing or redesigning a product/system. Analyzing how to distribute tasks between our human operators and any technology/automation by evaluating the basic functions that must be performed tends to happen in what type of analysis? 

Why is a holistic perspective (systems thinking) important to human-centered design? 

We are going to test driver performance with and without cell phone use. However, we also want to evaluate if driving in the day or the night impacts performance while using a cell phone. What type of experimental design is best for this setting? 

Which of the following are ethical considerations we must adhere to when designing and conducting an experiment? 

When conducting a cost benefit analysis to justify a human factors analysis, which of the following would be a good justification focus? 

The kitchen brigade is a _______ style chain of command.