WEEK BC 212

What is the primary focus of psychology?

• Study of physical health

• Scientific study of human behavior and mental processes

• Analysis of economic trends

• Research on animal behavior

Which of the following is NOT a goal of psychology?

• Predict

• Ignore

• Describe

• Control

What does a parameter describe?

• A statistical error

• A random variable

• A characteristic of a population

• A characteristic of a sample

What is a sample in research?

• A statistical method

• The entire population

• A set of individuals selected from a population

• A theoretical concept

What is a statistic?

• A type of variable

• A method of data collection

• A value that describes a characteristic of a sample

• A value that describes a characteristic of a population

Which of the following is an example of a discrete variable?

• Height

• Weight

• Temperature

• Number of children in a family

What is a dichotomous variable?

• A variable with multiple categories

• A variable that can take on any value

• A categorical variable with only two possible values

• A variable that is always constant

Which level of measurement uses names or labels?

• Ratio Scale

• Interval Scale

• Ordinal Scale

• Nominal Scale

What is the purpose of descriptive statistics?

• To make predictions about a population

• To collect and summarize data

• To test hypotheses

• To analyze variance

What does sampling error refer to?

• The error in hypothesis testing

• The error in statistical analysis

• The discrepancy between a sample statistic and a population parameter

• The error in data collection