Psychological Research Methods and Findings Quiz

Experimental research emphasizes controlling variables to establish causal relationships.

Random assignment ensures each participant has an equal chance of being in any experimental group.

Control groups establish a baseline against which the effects of experimental manipulations can be compared.

Experimental research involves manipulating variables to establish cause-and-effect relationships.

Longitudinal studies track participants over time to observe changes and developments.

Debriefing ensures participants understand the study's purpose and procedures after their involvement.

Correlation coefficient quantifies the relationship between variables, ranging from -1 to 1.

Double-blind procedures prevent bias by keeping both participants and researchers unaware of group assignments.

Reliability indicates the consistency and stability of measurement outcomes across repeated trials or over time.

Experimental studies provide the best means for establishing causal relationships between variables.

The placebo effect highlights the impact of belief or expectation on treatment outcomes.

Random sampling increases the likelihood of a representative sample and minimizes bias.

Confounding variables obscure true relationships between independent and dependent variables.

Quasi-experimental designs lack random assignment, making it difficult to establish causality.

Researchers in observational studies refrain from interfering, merely observing and recording behavior.

Hypotheses offer testable predictions or explanations for observed phenomena, guiding scientific inquiry.

Statistical significance testing assesses the probability that observed differences or relationships are not due to chance.