Statements of Conjecture in Empirical Inquiry
Empirical investigations frequently employ statements that propose a possible explanation for a phenomenon or a relationship between variables. These tentative propositions guide the research process and are subjected to rigorous testing.
Functions in the Research Process
- Direction: Offer a focused approach to inquiry, outlining the expected outcomes.
- Framework: Provide a structured basis for data interpretation and analysis.
- Testability: Must be formulated in a way that allows for empirical examination and potential refutation.
Characteristics of Effective Formulations
- Clarity: Defined variables and unambiguous language.
- Specificity: Precise predictions regarding the relationships between variables.
- Testability: Amenable to empirical evaluation through data collection and analysis.
- Falsifiability: Capable of being proven wrong through evidence.
Types of Formulations
- Null: States that there is no relationship between the variables being investigated. The goal of many statistical tests is to reject this.
- Alternative: States that there is a relationship between the variables being investigated. Several subtypes exist:
- Directional: Predicts the specific nature of the relationship (e.g., positive correlation).
- Non-directional: Predicts a relationship, but not the specific direction.
Formulation Considerations
The process of crafting these statements requires careful consideration of existing theory, prior research, and the specific objectives of the study. A well-developed formulation serves as a roadmap for the entire investigative endeavor.
The Role of Variables
These statements often involve the manipulation or observation of variables. Key variable types include:
- Independent: The variable that is manipulated or changed by the researcher.
- Dependent: The variable that is measured or observed and is expected to be affected by the independent variable.
- Control: Variables kept constant to prevent unwanted influence.