experimental methods

• Scientific methods

  apply understanding through research to create evidence-based conclusions
• Hypotheses


  testable statement of what the researchers predict the outcome of the study
• Falsification


  way to separate science, testable theories, from non-science
• General laws


  rules/principles governing human processes and behaviours
• Nomothetic


  Establishing laws or generalizations that apply to everyone
• Peer review


  when the quality of hypotheses is evaluated by peers in the scientific community
• Operationalisation

  process of defining variables into measurable factors
• What are the three types of hypotheses?


  • Directional
  • Non-directional
  • Null
• What is the definition of a directional hypothesis?


  states that the IV will have an effect on the DV and what the effect will be

  • has previous research
• What is the definition of a non-directional hypothesis?


  states that the IV will have a effect on the DV but doesn't predict how

  • no previous research
• What is the definition of a null hypothesis?


  states that the IV will not have an effect on the DV