Key Concepts in Scientific Research
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Questions and Answers

What is the main purpose of a hypothesis in research?

  • To provide a theoretical framework
  • To represent the overall aim of the research
  • To summarize the results of the research
  • To predict the outcome of the study (correct)
  • If a researcher wants to determine whether a specific treatment has no effect, which type of hypothesis is most appropriate?

  • Directional hypothesis
  • Non-directional hypothesis
  • Alternate hypothesis
  • Null hypothesis (correct)
  • What is a key characteristic of deductive reasoning?

  • It begins with specific observations to develop a theory.
  • It formulates hypotheses by generalizing findings.
  • It starts with a general theory and tests specific predictions. (correct)
  • It involves gathering evidence without prior assumptions.
  • Which of the following statements best defines 'empiricism' in research?

    <p>It is derived from systematic observation and experience.</p> Signup and view all the answers

    What distinguishes a non-directional hypothesis from a directional hypothesis?

    <p>A non-directional hypothesis makes no prediction about the direction of the outcome.</p> Signup and view all the answers

    Study Notes

    Key Words in Science

    • Theory construction: Developing explanations for behavior through gathering evidence.
    • Hypothesis testing: Testing theories through empirical methods.
    • Paradigms: Examples and models of behavior.
    • Replicability: Ability of an experiment to be repeated reliably.
    • Objectivity: Lack of bias in scientific observation.
    • Falsifiability: Ability to be proved wrong.
    • Inductive reasoning: Starting with small-scale observation and forming a general conclusion.
    • Deductive reasoning: Starting with a theory and testing it through experiments
    • Empiricism: Gaining knowledge through experience, not just belief.

    Defining Aims and Hypotheses

    • Aim: A general research question driving an investigation, e.g., "investigating obedience levels in teens."
    • Hypothesis: Researchers' predictions about what will be found in the research.
    • Hypothesis Testing: Five steps to confirm or deny a hypothesis.
    • Directional Hypothesis (one-tailed): Prediction with direction, e.g., "teenagers will be more obedient than adults."
    • Non-directional Hypothesis (two-tailed): Prediction without a specific direction, e.g., "there will be a difference in obedience between teenagers and adults."
    • Null Hypothesis: Predicts no significant effect or relationship between variables.
    • Alternative Hypothesis: Predicts a significant difference or relationship between variables.

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    Description

    This quiz explores essential concepts in scientific research, including theory construction, hypothesis testing, and the significance of paradigms. Participants will engage with the principles of replicability, objectivity, and reasoning methods in empirical studies. Perfect for students looking to deepen their understanding of scientific methodologies!

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