**Unit 1 Topics, Learning Objectives, and digital note outlines**

Topics:

**What are Statistics?** link: What are statistics?

- Learning Objectives

- Describe the range of applications of statistics
- Identify situations in which statistics can be misleading
- Define “statistics”

**Importance of Statistics** link: Importance of statistics

- Learning Objectives

- Give examples of statistics
- Give examples of how statistics can lend credibility to an argument

**Descriptive Statistics** link: Descriptive Statistics

- Learning Objectives

- Define “descriptive statistics”
- Distinguish between descriptive statistics and inferential statistics

**Inferential Statistics **link: Inferential Statistics

- Learning Objectives

- Distinguish between a sample and a population
- Define inferential statistics
- Identify biased samples
- Distinguish between simple random sampling and stratified sampling
- Distinguish between random sampling and random assignment

**Variables **link: Variables

- Learning Objectives

- Define and distinguish between independent and dependent variables
- Define and distinguish between qualitative and quantitative variables
- Define and distinguish between discrete and continuous variables

**Percentiles** link:Percentiles

- Learning Objectives

- Define percentiles
- Use three formulas for computing percentiles

**Levels of measurement **link:Levels of measurement

- Learning Objectives

- Define and distinguish among nominal, ordinal, interval, and ration scales
- Identify a scale type
- Discuss the type of scale used in psychological measurement
- Give examples of errors that can be made by failing to understand the proper use of measurement scales

**Distributions **link: Distributions

- Learning Objectives

- Define “distribution”
- Interpret a frequency distribution
- Distinguish between a frequency distribution and a probability distribution
- Construct a grouped frequency distribution for a continuous variable
- Identify the skew of a distribution
- Identify bimodal, leptokkurtic, and platykurtic distributions

**Summation Notation** link:Summation Notation

- Learning Objectives

- Use summation notation to express the sum of all numbers
- Use summation notation to express the sum of a subset of numbers
- Use summation notation to express the sum of squares

**Logarithms** link: http://algebranotes.info/logarithmic-functions-2/

- Learning Objectives

- Compute logs using different bases
- Convert between bases
- State the relationship between logs and proportional change

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