SSD
Definitions
Levels of Measurement
100
SSD Stands for:
Single Subject Design
100
The definition from the dictionary 
What is conceptual definition?
100
Categories
What is Nominal?
200
Two types of phases in SSD
What is Baseline and Intervention phase?
200
An example of this definition is the anxiety rating scale
What is operational definition?
200
Categories in a certain order
What is ordinal?
300
Time period for which a certain activity occurs
What is a Phase?
300
Equal intervals
What is interval?