Lesson 6: Correlation

Cards (10)

  • is a bivariate analysis that measures the strength of association between two variables and the direction of the relationship.
    correlation
  • indicates a perfect degree of association between the two variables.
    A value of ±1
  • the relationship between the two variables will be weaker
    value goes toward 0
  • sign indicates a positive relationship

    A +
  • sign indicates a negative relationship.
    a
  • Four types of correlation
    Pearson correlation, Kendall rank correlation, Spearman correlation, and Point Bi-serial correlation.
  • A measure of the relationship between variables.
    Correlation coefficient
  • The most common form for a relationship is a
    straight line
  • The numerical value of the correlation measures the
    strength or consistency of the relationship.
  • Is the most widely used correlation statistic to measure the degree of relationship between linearly related variables.
    Pearson r Correlation