About This Chapter
Descriptive Statistics in Psychology - Chapter Summary and Learning Objectives
Taught by an experienced instructor, the lessons in this chapter will help you understand what descriptive statistics are and how they are used in psychology research. You'll also get information about the types of frequency distribution in a sample. In other lessons, the measures of central tendency, which include median, mean and mode, are explored, as are range, variance and standard deviation, which are the measures of variability. By the end of the video lessons in this chapter, you should be familiar with psychology research methods including:
- Definition and uses of descriptive statistics
- Definition and types of frequency distribution
- Mean, median and mode: the measures of central tendency
- Range, variance and standard deviation: the measures of variability
|What Are Descriptive Statistics? - Definition and Uses||Define descriptive statistics and discuss their uses in the field of research psychology.|
|Frequency Distributions: Definition and Types||Define and discuss frequency distributions in a sample.|
|Measures of Central Tendency: Mean, Median and Mode||Explain the purpose of the various measures of central tendency and what they mean in relation to the sample and their population.|
|Measures of Variability: Range, Variance and Standard Deviation||Explain the purpose of the various measures of variability and what they mean in relation to the sample and their population.|
1. What Are Descriptive Statistics? - Definition and Uses
This lesson is a simple walk-through of the common types of descriptive statistics and why they are important for understanding psychological research. You will likely be familiar with many of them but some you may not be.
2. Frequency Distributions: Definition & Types
This lesson explores the process of creating frequency distributions and histograms to give readers of your future scientific articles a numerical or visual way to understand the data you have presented.
3. Mean, Median & Mode: Measures of Central Tendency
By describing the data using central tendency, a researcher and reader can understand what the typical score looks like. In this lesson, we will explore in more detail these measures of central tendency and how they relate to samples and populations.
4. Measures of Variability: Range, Variance & Standard Deviation
Looking specifically at range, variance, and standard deviation, this lesson explores the relationship between these measures and samples, populations, and what it says about your data.
Earning College Credit
Did you know… We have over 160 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the Psychology 105: Research Methods in Psychology course
- Introduction to Research Methods
- Principles of Ethical Research
- Setting Up the Research Study
- Data Collection Techniques in Psychology
- Nonexperimental Research
- Qualitative Research Methods and Design
- Quasi-Experimental Research
- Sampling and Generalization
- Measurement in Research
- Internal Validity in Research
- External Validity
- Experimental Design
- Inferential Statistics in Psychology
- Evaluating Research Findings
- Studying for Psychology 105