IB Applications & Interpretations SL, Unit 8 - Testing for Validity (Spearman, Hypothesis Testing, Chi-Squared Test). This bundle includes 4 guided notes lessons, teacher guides, 1 assessment and assessment review with answer keys, and an assignment sheet, including recommended hw extra practice. Topics include: 1) Spearman's Rank Correlation Coefficient 2) Introduction to Hypothesis Testing 3) Hypothesis Testing for Means 4) Chi-Squared χ2 Hypothesis Test for Goodness of Fit