Principles and Methods of Experimental Psychology Quiz

Random assignment ensures that participants have an equal chance of being in any experimental condition, reducing bias and allowing for causal inferences.

Anecdotal evidence is not a rigorous scientific step; the scientific method involves systematic observation, hypothesis testing, and empirical evidence.

A control group allows researchers to compare the effects of the independent variable by providing a baseline for comparison.

Random assignment minimizes selection bias, ensuring that participants are equally distributed across experimental conditions.

Reaction time is a variable that is measured in response to the manipulation of the independent variable.

The primary goal is to manipulate and control variables to understand and predict behavior.

Manipulating the independent variable helps control extraneous variables and isolate its effects.

Confounding variables interfere with the interpretation of results by affecting both the independent and dependent variables.

Case studies lack experimental control and are not typically used in experimental psychology.

The Hawthorne effect is the alteration of behavior when individuals are aware of being observed.

Debriefing involves revealing the study's true purpose and addressing any concerns or misconceptions participants may have.

ANOVA is used to assess differences in means across multiple groups, providing statistical significance.

Statistical significance indicates that the observed effect is unlikely to have occurred by random chance.

Despite control efforts, experimental research may still face challenges in fully controlling all relevant variables.

Double-blind procedures help eliminate bias by keeping both participants and experimenters unaware of who is in the experimental and control groups.