2.2 Forms of Research Design
2.3 Concept and Meaning of Ex-post Facto Research
2.4 Characteristics of Ex-post Facto Research
2.5 Differences between an Experimental and an Ex-post Facto Research
2.6 Essentials/Requisites for Inferring Causal Relationships
2.7 Steps of Ex-post Facto Research
2.8 Strengths and Weaknesses of Ex-post Facto Research
2.9 Concept of Post Hoc Fallacy