Operational Definition: Participants were divided into 3 groups based on whether they said they were often angry, sometimes angry, or rarely angry....

1.Operational Definition: Participants were divided into 3 groups based on whether they said they were often angry, sometimes angry, or rarely angry.  

a. Measurement:                 [Categorical, Continuous]            

b. Method:                          [Observation, Self-Report, Manipulated, Physiological]     

2. Operational definition: Reward delay was operationally defined as the amount if time (in seconds from 0 to 10) an experimenter delayed a reward after a pigeon pecks the disk.