Section outline

  • Lecture Outline

    • Definition of the research problem
    • The relationship between the research problem, hypotheses, and objectives
    • Characteristics of a good research problem
    • Sources for deriving a research problem
    • Steps for identifying and formulating the research problem
    • Forms and styles of presenting the research problem
    • Common errors in defining a research proble
    •  Evaluating the quality of a research problem
    • Lecture 3: The Research Problem ملف

      • Research Population and Study Sample in Special Education Research

        Lecture Goals

        This lecture aims to enable graduate students in Special Education to:

        1. Understand the concept of the research population and its role in determining the scope and validity of empirical studies in the field of special education.

        2. Differentiate between types of research populations (homogeneous vs. heterogeneous) and identify examples relevant to diverse disability categories.

        3. Recognize what constitutes a study sample and the scientific principles governing its selection.

        4. Identify the characteristics of a good sample, including representativeness, appropriate size, and scientific selection procedures.

        5. Analyze common methodological errors related to sampling in special-education research.

        6. Apply the stages of selecting a research sample, from defining the population to determining sample size, within real cases involving children with disabilities, teachers, and families.

        7. Evaluate sampling techniques and justify the use of specific sampling methods (random, stratified, purposive, etc.) based on the nature of the special-education population.