09 Descriptive Statistics - 1 DESCRIPTIVE STATISTICS Class...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
11/2/2016 1 DESCRIPTIVE STATISTICS Class 9 1 LECTURE OUTLINE Mean Median Mode Variance Standard Deviation Correlation & Covariance DESCRIPTIVE STATISTICS Describing your groups DESCRIPTIVE STATISTICS Psychologists want to DESCRIBE behavior Describing groups We describe groups in terms of their measured behaviors. We describe the relationships between variables. NO CAUSAL INFERENCE 4 5 6
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
11/2/2016 2 DESCRIPTIVE STATISTICS Measurements that summarize data sets as they are, without comparison. DESCRIPTIVE STATISTICS Central Tendency Mean Median Mode Variability Variance Standard Deviation Co-variability Covariance Correlation Coefficient MEAN Average The sum of scores divided by the number of scores. 𝑀 = σ 𝑥 𝑛 7 8 9
Image of page 2
11/2/2016 3 Marginal Means Grand Mean MEDIAN The score at which 50% of the scores are below this point and 50% are above this point. Note: This is a measure that is affected by the distribution of scores (not their values)
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern