Effect Size and Significance Level in Statistics
19 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What does Cohen's d measure in a research study?

  • Magnitude of effect of the independent variable on the dependent variable (correct)
  • Significance level of the results
  • Sample size required for a study
  • Probability of error in statistical analysis
  • When is the need for a higher significance level in statistical analysis justified?

  • Sometimes, depending on the context (correct)
  • Never
  • Always
  • Rarely
  • Which type of validity assesses how well an experiment represents real-world situations?

  • Predictive validity
  • Face validity (correct)
  • Concurrent and convergent validity
  • Content validity
  • What is one indicator of construct validity that focuses on ensuring the experiment covers all relevant aspects of the concept being studied?

    <p>Content validity</p> Signup and view all the answers

    What type of validity examines whether the experimental conditions are causing the observed effects rather than other variables?

    <p>Internal validity</p> Signup and view all the answers

    What concept in biopsychology refers to the debate over whether genetics or environment plays a larger role in behavior?

    <p><em>Nature vs. nurture</em></p> Signup and view all the answers

    What is one reason why federally mandated committees review human research proposals?

    <p>To assess the ethical considerations involved in the research</p> Signup and view all the answers

    What is the purpose of using r2 in statistics rather than just r?

    <p>To determine the shared variance in the sample</p> Signup and view all the answers

    What does the standard regression equation y = mx + b represent?

    <p>The line of best fit for predicting y based on x</p> Signup and view all the answers

    What does a significance level of p < 0.05 indicate in statistics?

    <p>The likelihood of obtaining results due to chance is less than 5%</p> Signup and view all the answers

    Which measure tells you how wide the normal curve is and how much variance there is in your data?

    <p>Standard deviation</p> Signup and view all the answers

    Why do researchers need to obtain informed consent from participants in human research studies?

    <p>To protect participants' rights and well-being</p> Signup and view all the answers

    Which of the following is NOT a feature of good science?

    <p>Reliability</p> Signup and view all the answers

    In psychological research, which type of variable is directly manipulated by the researcher?

    <p>Operational Variable</p> Signup and view all the answers

    What type of method aims to describe behaviors, predict behaviors, determine causes of behaviors, and influence/control behaviors?

    <p>Applied research</p> Signup and view all the answers

    What is the main issue associated with correlation studies?

    <p>Confounding variables</p> Signup and view all the answers

    Which type of research involves understanding basic mechanisms and genetics?

    <p>Animal models research</p> Signup and view all the answers

    What is the relationship between two variables that have a perfect negative correlation?

    <p>-1</p> Signup and view all the answers

    "Theory" in scientific use differs from common use as it aims to:

    <p>Generate new knowledge</p> Signup and view all the answers

    More Like This

    RMB (2)
    18 questions

    RMB (2)

    SnazzyClarity avatar
    SnazzyClarity
    Types of T-Test and Effect Size
    15 questions
    ANOVA y Tamaño del Efecto
    37 questions

    ANOVA y Tamaño del Efecto

    SuperHeliotrope7734 avatar
    SuperHeliotrope7734
    Statistics: Effect Size and Sample Size
    8 questions
    Use Quizgecko on...
    Browser
    Browser