Descriptive Statistics in Psychological Research

What is the primary purpose of descriptive statistics in psychological research?

• To manipulate data for analysis

• To predict future outcomes

• To summarize, organize, and simplify data

• To conduct hypothesis testing

Which type of data is numerical and can take any value within a range?

• Categorical data

• Continuous data

• Discrete data

• Qualitative data

What is an example of categorical data in psychology?

• Height

• Weight

• Gender

• Blood pressure

Which descriptive statistic measures the spread or variability of a dataset?

• Mean

• Median

• Variance

• Mode

What type of data can only take specific, distinct values?

• Continuous data

• Discrete data

• Categorical data

• Qualitative data

In psychology, which of the following could be considered continuous data?

• Number of pets owned

• Ethnicity

• Height

• Type of favorite food

Which measure of central tendency is the middle value in a sorted dataset?

• Mode

• Median

• Mean

• Variance

What does the range represent in descriptive statistics?

• The difference between the highest and lowest values in a dataset

• The average value in a dataset

• The most frequently occurring value in a dataset

• The spread of values around the mean

What type of data is 'number of siblings' in psychology?

• Continuous data

• Discrete data

• Categorical data

• Ordinal data

Which type of data can be grouped or categorized based on characteristics or attributes?

• Continuous data

• Discrete data

• Categorical data

• Nominal data