Final answer:
Intrinsic factors related to studies are those internal to the study's design, methodology, or subject matter, such as the theoretical framework, type of data, and methods of analysis. These factors are crucial as they inherently influence the structure and outcomes of the study.
Step-by-step explanation:
When discussing Intrinsic factors that are related to studies themselves, one is referring to c) Factors internal to the study. These are the aspects that are inherent within the study's design, methodology, or subject matter. It is important to distinguish these from external factors such as social, economic, cultural, and historical contexts that might influence a study but are not part of its inherent structure or process.
Intrinsic factors in studies might include the specific questions posed, the theoretical framework employed, the type of data used, and the methods of analysis chosen. For example, in social psychology, situational factors (choice d from a reference you provided) are intrinsic to the study of personality traits and behaviors. In education, resources and money (choice a from another reference) are often internal factors affecting the education system itself. These components are integral to the studies and shape the outcomes and interpretations of the findings within the boundaries of the study’s academic discipline.