Fundamentals of Psychology Research and Methodology Quiz

Expository method is not a commonly used research method in psychology.

The experimental method involves manipulating independent variables to observe their effects on dependent variables, allowing for causal inference.

A hypothesis serves as a testable statement that predicts the relationship between variables or offers an explanation for observed phenomena in psychological research.

Descriptive statistics are used to summarize and describe the basic features of a dataset, providing a clear understanding of its characteristics.

Random assignment helps to ensure that participants are equally distributed across experimental conditions, minimizing the influence of extraneous variables.

Correlation coefficient quantifies the degree and direction of the linear relationship between two variables.

Validity concerns whether a test measures what it is supposed to measure, while reliability refers to the consistency of results over time or across different conditions.

About 68% of scores in a normal distribution fall within one standard deviation from the mean, according to the empirical rule.

Informed consent ensures that participants understand the nature of the study, risks, benefits, and their rights before agreeing to participate.

Double-blind procedure helps to eliminate bias by ensuring neither the participants nor the researchers know which condition they are in.

Longitudinal design tracks the same individuals or groups over an extended period to observe changes or trends.

This statement describes a positive correlation where an increase in one variable (exercise frequency) is associated with an increase in another variable (weight loss).

Qualitative research methods allow for detailed exploration of complex phenomena, providing rich, in-depth insights.