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**Alternative Hypothesis** (see "Hypotheses")

**ANOVA**

- Quiz - Understanding the F-ratio
- Quiz - Between-group and within-group variability
- Quiz - Calculate F-statistic
- Solution - Degrees of freedom for ANOVA

**Central Limit Theorem**

- Instruction - Central Limit Theorem definition

**Chi-Square Tests**

- Instruction - Chi-square goodness-of-fit test
- Instruction - Chi-square test for independence
- Quiz - Cramer's V

**Cohen's d**

**Confidence Interval**

- Instruction - Formula for confidence interval when sigma is known (z-table)
- Solution - Find 95% confidence interval when sigma is known (z-table)
- Solution - 95% confidence interval when sigma is not known (t-table)
- Solution - Confidence interval for dependent samples (t-test)
- Quiz - Confidence interval for true correlation coefficient (rho)

**Constructs**

- Instruction - Definition of “constructs”
- Quiz - Which are constructs?
- Quiz - Match constructs with operational definitions

**Correlation coefficient**

- Instruction - Definition
- Solution - Calculate Pearson's r in spreadsheet

**Cramer's V** (see "Chi-Square Tests")

**Critical values of z**

- Quiz - Critical values for 95% confidence
- Quiz - Critical values for 98% confidence
- Instruction - Definition of “critical values of z”

**Decision errors**

**Degrees of Freedom**

- Instruction - Degres of freedom and sample standard deviation
- Solution - Degrees of freedom for ANOVA
- Quiz - Degrees of freedom for chi-square tests

**Distribution**

**Eta-Squared** (see "ANOVA")

**F-Table**

**Frequency**

- Quiz - Tally the frequency

**Histogram**

- Solution - Create histogram

**Hypotheses**

- Instruction - Null and alternative hypotheses
- Quiz - Null hypothesis
- Solution - Alternative hypothesis

**Hypothesis Testing**

- Instruction - One-tailed versus two-tailed tests
- Quiz - Z-test
- Quiz - One-sample t-test
- Quiz - Two-sample t-test statistic
- Solution - Pooled variance for two-sample t-tests
- Quiz - Correlation coefficient (rho)

**Interval estimate** (see “Confidence Interval”)

**Lurking variables**

- Solution - Lurking variables are extraneous factors

**Margin of error**

- Instruction - Definition of “margin of error”
- Quiz - Margin of error for t-test

**Mean**

- Quiz - Find the mean
- Instruction - Formula for mean
- Quiz - Calculate mean using spreadsheet

**Measures of Center**

- Solution - Mean, median, and mode
- Quiz - Measures of center for skewed distribution
- Quiz - Measures of center for normal distribution
- Quiz - Summarize measures of center

**Median**

**Mode**

**Normal Distribution**

- Instruction - Properties of normal distribution
- Instruction - Area under PDF

**Null Hypothesis** (see "Hypotheses")

**Operational definition**

- Instruction - Definition of “operational definition”
- Quiz - Match constructs with operational definitions

**Outlier**

- Quiz - Formal definition of “outlier”

**P-Value**

- Quiz - Probability of Type I error
- Quiz - P-value for one- and two-tailed tests
- Quiz - Visualize p-value

**Pearson's r** (see "Correlation coefficient")

**Percentile**

- Instruction - Definition of percentile

**Point estimate**

**Pooled Variance** (see "Hypothesis Testing")

**Probability**

**Random**

- Instruction - Definition of “randomness”
- Quiz - Which are random samples?

**Regression**

- Instruction - Summary of linear regression
- Instruction - Slope of regression line
- Quiz - Y-intercept of regression line

**Relative frequency**

- Quiz - Calculate relative frequencies

**Sampling distribution**

- Quiz - Definition, shape of sampling distribution
- Instruction - Standard deviation of sampling distribution
- Quiz - Mean of sampling distribution
- Solution - Standard deviation of sampling distribution

**Standard deviation**

- Instruction - What is standard deviation, how to find it
- Quiz - Calculate standard deviation
- Quiz - Calculate standard deviation with spreadsheet
- Quiz - Sample standard deviation

**Standard error**

**Sum of Squares**

- Quiz - Formula for sum of squares

**t-Table**

- t-table
- Instruction - What is the t-Table?
- Quiz - One-tailed t-critical value
- Quiz - Two-tailed t-critical values

**t-Tests**

- Instruction - One-sample t-test
- Solution - Calculate t-statistic
- Instruction - Dependent samples t-test
- Quiz - Difference between dependent and independent samples t-tests
- Quiz - Independent samples t-statistic

**Tukey's HSD**

- Instruction - Intro to multiple comparison tests and Tukey's HSD
- Quiz - Calculate Tukey's HSD
- Quiz - Interpret Tukey's HSD

**Type I Error** (see “Decision errors”)

**Type II Error** (see “Decision errors”)

**Variance**

**Z-scores**

- Instruction - Z is the number of standard deviations
- Solution - Standard Normal distribution
- Quiz - Z-scores of sample means

**Z-table**

- z-Table
- Instruction - Intro to z-table
- Quiz - Use the z-table

**Z-Tests**

- Instruction - One-tailed and two-tailed tests