Exercise #5

 

During a clinical interview, survivors of a tornado are asked to state “no” or “yes” to whether they have experienced specific symptoms of Post-Traumatic Stress Disorder (PTSD) in the past week.  The interviewer adds up the total number of “yes” responses to create a Total PTSD Symptoms scale.

Choose the appropriate scale of measurement.

 

 Nominal
Ordinal
Interval
Ratio
Approximately Interval