AP Psychology Unit 1 Review: Understanding Psychology

Psychology is an independent science. Modern psychologists strive to gain and apply knowledge beneficially in everyday life.
The birth of psychology as a separate science dates back to the 19th century, which developed through the work of early pioneers like Wilhelm Wundt.

Experimental and non-experimental psychologists formulate testable hypotheses and seek empirical evidence to support or reject conclusions.
Non-experimental studies lack the same controls as experimental studies, limiting the ability to infer causal connections between variables.

Behavior Genetics: Explores genetic and environmental contributions to personality characteristics and behavior.
Behaviorism: A perspective that emphasizes observable and quantifiable behavior and its relationship with environmental variables.
Functionalism: Founded by William James, focusing on the functions of consciousness rather than its structures.
Structuralism: Led by Wilhelm Wundt, it analyzes conscious experience in terms of its fundamental structures.
Gestalt Psychology: Asserts that individuals perceive objects and patterns as whole units, believing that the whole is more important than the sum of its parts; behavior and perception are viewed as totalities.

Cognitive Perspective: Focuses on mental processes, including memory and language.
Evolutionary Perspective: Studies the evolution of behavior through the principles of natural selection.
Psychodynamic Perspective: A neo-Freudian perspective emphasizing unconscious processes and childhood experiences.
Psychology: The scientific study of behavior and mental processes.
Psychologists: Hold master's or doctoral degrees. They may work in therapy, experimentation, or other areas but generally cannot prescribe medication.
Psychiatrists: Medical doctors who specialize in mental disorders and can prescribe drugs.

Basic Research: Conducted for knowledge rather than practical problem-solving.
Research Design: A plan outlining the investigative approach, manipulation of variables, and data analysis methods.
Observational Research: Systematic observation in a natural environment used for data collection.

Case Study: An in-depth analysis of an individual with unusual characteristics, useful when conditions are rare.
Experiment: Involves random assignment to groups, manipulation of independent variables, and measurement of dependent variables; allows for cause-and-effect conclusions.
Experimental Condition/Group: Exposed to the independent variable; compared to the control group.
Control Group: Not exposed to the experimental treatment, necessary for comparison.
Confounding Variable: Any variable other than the independent variable that may cause differences between groups.
Third Variable: A variable that causes both A and B in a correlation between them.
Correlational: Measures the degree of relatedness between two data sets.
Double Blind: Participants and administrators are unaware of who receives the treatment versus a placebo, prevalent in drug studies.

Clinical Psychology: Focuses on diagnosing and treating psychological disorders.
Data: Information gathered during a scientific study.
Ethics: Standards of conduct in psychology, including research and clinical practices.
Informed Consent: Participants are informed about the study's risks and benefits and consent to participate.
Operational Definition: Specific definition of a variable for research purposes.
Placebo: Resembles the experimental condition but has no actual effect, commonly a sugar pill in drug studies.
Population: The entire group from which a sample may be drawn.
Pseudoscience: Resembles scientific activity but fails to adhere to scientific principles.
Random Assignment: Ensures every participant has an equal chance of being assigned to any group.
Random Selection: Every population member has an equal chance of being sampled.
Representative Sample: Reflects the population's characteristics relevant to the study.

Skepticism: A philosophical approach advocating doubt and questioning beliefs.
Survey: A method of research involving systematic data collection from a representative sample, using interviews or questionnaires.
Theory: A coherent set of explanations for a phenomenon.

Statistical Procedures: Tools for measurement and analysis, divided into descriptive and inferential statistics.
Descriptive Statistics: Methods to describe characteristics of individuals and groups, presenting means and standard deviations to illustrate data clustering.
Inferential Procedures: Help test hypotheses through interpretation of similarities and differences in data.