# Practical Research: Planning and Design Twelfth Edition Chapter 11 Quiz

PeerlessSaturn
·
·

Start Quiz

Study Flashcards

## 20 Questions

### Which type of statistics describes what the data look like, how broadly they are spread, and how closely two or more variables within the data are associated with one another?

Descriptive statistics

### What characteristic distinguishes a normal distribution?

It is vertically symmetrical

### What is the defining feature of nominal data?

They have separate, non-ranked categories

### Which type of variables involve an infinite number of possible values?

Continuous variables

### What does inferential statistics allow us to do?

Draw inferences about large populations by collecting data on relatively small samples

### What is the purpose of organizing data before analysis?

To make the data easier to understand and interpret

### What is one of the uses of electronic spreadsheets for organizing and analyzing data?

Graphing from the data

### Why should every researcher be able to provide a clear, logical rationale for the procedure used to organize data?

To demonstrate transparency and reproducibility

### In what ways can data be organized for analysis?

In a table and in a graph

### What are statistics used for in relation to numerical data?

To find patterns and meaning in the data

### What is the purpose of organizing data before analysis?

To identify patterns and meaningful relationships in the data

### What characteristic distinguishes a normal distribution?

It has a bell-shaped curve

### What is the defining feature of nominal data?

It represents categories with no inherent order

### What does inferential statistics allow us to do?

Make predictions or inferences about a population based on a sample

### Which type of variables involve an infinite number of possible values?

Continuous variables

Ratio

Normal

### Which type of statistics allows us to draw inferences about large populations by collecting data on relatively small samples?

Inferential statistics

### What distinguishes ratio data from interval data?

Ratio data has equal intervals and a true zero point

### What distinguishes a skewed distribution from a normal distribution?

Normal distribution is not symmetrical

## Study Notes

### Types of Statistics

• Descriptive statistics describe what the data look like, how broadly they are spread, and how closely two or more variables are associated with one another.

### Normal Distribution

• A normal distribution is characterized by symmetry around the mean, with the highest point at the midpoint.

### Data Types

• Nominal data are defined by having no inherent order or hierarchy.
• Interval data have equal intervals, but no true zero point.
• Ratio data have equal intervals and a true zero point.
• Continuous variables involve an infinite number of possible values.

### Inferential Statistics

• Inferential statistics allow us to draw inferences about large populations by collecting data on relatively small samples.

### Data Organization

• Organizing data before analysis helps to identify patterns, relationships, and errors.
• Data can be organized by sorting, grouping, or categorizing.
• Electronic spreadsheets are a useful tool for organizing and analyzing data.
• Every researcher should be able to provide a clear, logical rationale for the procedure used to organize data.

### Skewed Distribution

• A skewed distribution is asymmetrical, distinguishing it from a normal distribution.

Test your understanding of analyzing quantitative data, organizing data sets, and computational procedures in statistics with this quiz based on Practical Research: Planning and Design Twelfth Edition Chapter 11.

## Make Your Own Quizzes and Flashcards

Convert your notes into interactive study material.

## More Quizzes Like This

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