what are hypotheses in research

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.