week 2.1 IRM

Which sampling method is NOT representative of the population?

What is the term used to describe the bias that occurs when people self-select to participate in a study?

What percentage of study participants do WEIRD populations represent, despite only making up 12 percent of the world's population?

Which one of the following is true about cross-sectional designs?

Which one of the following is true about longitudinal designs?

Which one of the following is true about quasi-experimental designs?

True or false: Cross-sectional designs capture data at multiple points in time.

True or false: Experimental designs do not manipulate any variables.

True or false: Within-subject designs collect data from participants relative to only one condition.

True or false: Sampling biases should always be recognized and attenuated where possible.

True or false: The majority of published psychological research is conducted on WEIRD samples.

True or false: Longitudinal designs involve collecting data from participants at one point in time.

Sampling Methods

Convenience sampling is NOT representative of the population

Bias in Research

Self-selection bias occurs when people choose to participate in a study, leading to biased results

WEIRD Populations

WEIRD (Western, Educated, Industrialized, Rich, and Democratic) populations represent only 12% of the world's population but account for approximately 60% of study participants

Research Designs

Cross-Sectional Designs

Cross-sectional designs involve collecting data from participants at a single point in time
False: Cross-sectional designs do NOT capture data at multiple points in time

Longitudinal Designs

Longitudinal designs involve collecting data from participants over an extended period, allowing for observation of changes over time
False: Longitudinal designs do NOT involve collecting data at one point in time

Quasi-Experimental Designs

Quasi-experimental designs involve non-random assignment of participants to conditions, lacking the control of true experimental designs

Experimental Designs

False: Experimental designs DO manipulate variables to test hypotheses

Study Designs

Within-subject designs collect data from participants relative to multiple conditions
False: Within-subject designs do NOT collect data relative to only one condition

Best Practices in Research

Sampling biases should always be recognized and attenuated where possible to ensure more representative results
True: The majority of published psychological research is conducted on WEIRD samples, which may not be representative of the global population

Test your knowledge of research designs with this quiz! Learn about the differences between cross-sectional and longitudinal designs, as well as experimental, observational, and quasi-experimental designs. Challenge yourself and improve your understanding of research methodology.