# Understanding Correlation in Psychology Research

MultiPurposeSchrodinger
·
·

Start Quiz

Study Flashcards

## 12 Questions

Correlation

### In a positive correlation, what happens as one variable tends to increase?

The other variable also increases

### What type of relationship is described as when one variable increases, so does the other variable, but only up to a certain point?

Curvilinear relationship

### In which type of curvilinear relationship do both variables increase together up to a certain point?

Curvilinear relationship

### What is the primary focus of correlational methods in research?

Finding relationships between variables

### What distinguishes an experimental method from a correlational method?

Experimental methods establish causation

### What is a key difference between experimental and correlational research?

Experimental research involves manipulating an independent variable, while correlational research only involves observing variables.

### Which type of study is best for generalizing conclusions to other populations or settings?

Correlational study

### What is one common way to collect data for a correlational study?

Using questionnaires and surveys

### How are variables treated in a correlational study compared to an experimental study?

Variables are observed in both correlational and experimental studies.

### What type of analysis is commonly used to determine the association between variables in a correlational study?

Regression analysis

### Which type of research allows for drawing conclusions about cause-and-effect relationships?

Experimental research

## Study Notes

### Correlation

• Correlation is the measurement of the extent to which pairs of related values of two variables tend to change together or co-vary.
• Positive correlation: one variable tends to increase with the other variable.
• Negative correlation: one variable tends to decrease as the other variable increases.

### Types of Correlation

• Curvilinear relationship: when one variable increases, the other variable increases up to a certain point, after which, the other variable decreases.
• Inverted U-shaped curve: graph representation of a curvilinear relationship where one variable increases, the other variable increases up to a certain point, then decreases.
• U-shaped curve: graph representation of a curvilinear relationship where one variable increases, the other variable decreases up to a certain point, then both variables increase together.

### Research Methods

• Experimental methods: used to test cause-and-effect relationships between variables.
• Correlational methods: used to test the association between variables.

### Experimental vs Correlational Research

• Experimental research:
• Manipulates an independent variable and measures a dependent variable.
• Controls extraneous variables to ensure high internal validity.
• Allows for conclusions about causality.
• Correlational research:
• Observes variables without manipulation.
• Limited control over extraneous variables.
• High external validity, allows for generalizability to other populations or settings.

### Correlational Study

• A correlational study has no manipulation by the researcher and yields statistical results.
• Common data collection techniques: questionnaires, surveys, and psychometric tests (e.g. IQ tests, measures of depressive symptoms, and tests of attitudes).
• Data is typically plotted on a scatterplot and analyzed using regression analysis to determine the line-of-best fit.

Learn the difference between a correlation and correlational study in psychology research. Explore how correlation is measured and identified, including positive and negative correlations between variables.

## Make Your Own Quizzes and Flashcards

Convert your notes into interactive study material.

## More Quizzes Like This

Use Quizgecko on...
Browser
Information:
Success:
Error: