| 
			 Strategy  | 
			
			 Form of research question  | 
			
			 Requires control over behavioural events  | 
			
			 Focuses on contemporary events  | 
		
| 
			 Experiment  | 
			
			 How, Why  | 
			
			 Yes  | 
			
			 Yes  | 
		
| 
			 Survey  | 
			
			 Who, What, Where, How many, How much  | 
			
			 No  | 
			
			 Yes  | 
		
| 
			 Archival analysis  | 
			
			 Who, What, Where, How many, How much  | 
			
			 No  | 
			
			 Yes/No  | 
		
| 
			 History  | 
			
			 How, Why  | 
			
			 No  | 
			
			 No  | 
		
| 
			 Case study  | 
			
			 How, Why  | 
			
			 No  | 
			
			 Yes  | 
		
Source: (Yin, 1995)