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Chapters 1-3
Psychology Schacter, Gilbert, Wegner Second Edition
76
Psychology
Undergraduate 1
09/12/2012

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Term
Psychology
Definition
The scientific study of mind and behavior.
Term
Mind
Definition
Our private inner experience, thoughts, memories, and feelings.
Term
Behavior
Definition
Observable actions of human beings and nonhuman animals.
Term
Nativism
Definition
The philosophical view that certain kinds of knowledge are innate or inborn.
Term
Philosophical Empiricism
Definition
The philosophical view that all knowledge is acquired through experience.
Term
Phrenology
Definition
A now defunct theory that specific mental abilities and characteristics , ranging from memories to the capacity for happiness, are localized in specific regions of the brain.
Term
Physiology
Definition
The study of biological processes, especially in the human body.
Term
Stimulus
Definition
Sensory input from the environment.
Term
Reaction Time
Definition
The amount of time taken to respond to a specific stimulus.
Term
Consciousness
Definition
A person's subjective experience of the world and the mind.
Term
Structuralism
Definition
The analysis of the basic elements that constitute the mind.
Term
Introspection
Definition
The subjective observation of one's own experience.
Term
Functionalism
Definition
The study of the purpose mental processes serve in enabling people to adapt to their environment.
Term
Natural Selection
Definition
Charles Darwin's theory that the features of an organism that help it survive and reproduce are more likely than other features to be passed on to subsequent generations.
Term
Hysteria
Definition
A temporary loss of cognitive or motor functions, usually as a result of emotionally upsetting experiences.
Term
Unconscious
Definition
The part of the mind that operates outside of consciousness awareness but influences conscious thoughts, feelings, and actions.
Term
Psychoanalytic Theory
Definition
Sigmund Freud's approach to understanding human behavior that emphasizes the importance of unconscious mental processes in shaping feelings, thoughts, and behaviors.
Term
Psychoanalysis
Definition
A therapeutic approach that focuses on bringing unconscious material into conscious awareness to better understand psychological disorders.
Term
Humanistic Psychology
Definition
An approach to understanding human nature that emphasizes the positive potential of human beings.
Term
Behaviorism
Definition
An approach that advocates that psychologists restrict themselves to the scientific study of objectively observable behavior.
Term
Response
Definition
An action or physiological change elicited by a stimulus.
Term
Reinforcement
Definition
The consequences of a behavior that determine whether it will be more likely that the behavior will occur again.
Term
Illusions
Definition
Errors of perception, memory, or judgement in which subjective experience differs from objective reality.
Term
Gestalt Psychology
Definition
A psychological approach that emphasizes that er often perceive the whole rather than the sum of the parts.
Term
Cognitive Psychology
Definition
The scientific study of mental processes, including perception, thought, memory, and reasoning.
Term
Behavioral Neuroscience
Definition
An approach to psychology that links psychological processes to activities in the nervous system and other bodily processes.
Term
Cognitive Neuroscience
Definition
A field that attempts to understand the links between cognitive processes and brain activity.
Term
Evolutionary Psychology
Definition
A psychological approach that explains mind and behavior in terms of the adaptive value of abilities that are preserved over time by natural selection.
Term
Social Psychology
Definition
A subfield of psychology that studies the causes and consequences of interpersonal behavior.
Term
Cultural Psychology
Definition
The study of how cultures reflect and shape the psychological processes of their members.
Term
William James
Definition
Father of psychology in America.
Term
Paul Broca
Definition
Worked with brain-damaged people which helped him to develop the theory that the mind is grounded in the material processes of the brain.
Term
Hermann von Helmholtz
Definition
Estimated the length of time it took for a nerve impulse to travel to the brain by measuring a person's reaction time.
Term
Edward Titchener
Definition
Brought structuralism to America.
Term
Wilhem Wundt
Definition
Developed structuralism.
Term
Empiricism
Definition
The belief that accurate knowledge can be acquired through observation.
Term
Scientific Method
Definition
A set of principles about the appropriate relationship between ideas and evidence.
Term
Theory
Definition
A hypothetical explanation of a natural phenomenon.
Term
Hypothesis
Definition
A falsifiable prediction made by theory.
Term
Empirical Method
Definition
A set of rules and techniques for observation.
Term
Operational Definition
Definition
A description of a property in concrete, measurable terms.
Term
Measure
Definition
A device that can detect the condition to which an operational definition refers.
Term
Electromyograph (EMG)
Definition
A device that measures muscle contractions under the surface of a person's skin.
Term
Validity
Definition
The extent to which a measurement and a property are conceptually related.
Term
Reliability
Definition
The tendency for a measure to produce the same measurement whenever it is used to measure the same thing.
Term
Power
Definition
The ability of a measure to detect the concrete conditions specified in the operational definition.
Term
Demand Characteristics
Definition
Those aspects of an observational setting that cause people to behave as they think they should.
Term
Naturalistic Observation
Definition
A technique for gathering scientific information by unobtrusively observing people in their natural environments.
Term
Double-Blind
Definition
An observation whose true purpose is hidden from both the observer and the person being observed.
Term
Frequency Distribution
Definition
A graphical representation of measurements arranged by the number of times each measurement was made.
Term
Normal Distribution
Definition
A mathematically defined frequency distribution in which most measurements are concentrated around the middle.
Term
Mode
Definition
The value of the most frequently observed measurement.
Term
Mean
Definition
The average value of all the measurements.
Term
Median
Definition
The value that is directly in the middle.
Term
Range
Definition
The value of the largest measurement in a frequency distribution minus the value of the smallest measurement.
Term
Standard Deviation
Definition
A statistic that describes the average difference between the measurements in a frequency distribution and the mean of that distribution.
Term
Variable
Definition
A property whose value can vary across individuals or over time.
Term
Correlation
Definition
Two variables are said to be correlated when variations in the value of one variable are synchronized with variations in the value of the other.
Term
Correlation Coefficient
Definition
A measure of the direction and strength of a correlation, signified by the letter r.
Term
Natural Correlation
Definition
A correlation observed in the world around us.
Term
Third-variable Correlation
Definition
The fact that two variables are correlated only because each is causally related to a third variable.
Term
Matched Samples
Definition
A technique whereby the participants in two groups are identical in terms of a third variable.
Term
Matched Pairs
Definition
A technique whereby each participant is identical to one other participant in terms of a third variable.
Term
Third-Variable Problem
Definition
The fact that a causal relationship between two variables cannot be inferred from the naturally occurring correlation between them because of the ever-present possibility of third-variable correlation.
Term
Experiment
Definition
A technique for establishing the causal relationship between variables.
Term
Manipulation
Definition
The creation of an artificial pattern of variation in a variable in order to determine its causal powers.
Term
Self-Selection
Definition
A problem that occurs when anything about a person determines whether he or she will be included in the experimental or control group.
Term
Random Assignment
Definition
A procedure that uses a random event to assign people to the experiment or control group.
Term
Internal Validity
Definition
The characteristic of an experiment that establishes the causal relationship between variables.
Term
External Validity
Definition
A property of an experiment in which the variables have been operationally defined in a normal, typical, or realistic way.
Term
Population
Definition
The complete collection of participants who might possibly be measured.
Term
Sample
Definition
The partial collection of people drawn from a population.
Term
Case Method
Definition
A method of gathering scientific knowledge by studying a single individual.
Term
Random Sampling
Definition
A technique for choosing participants that ensures that every member of a population has an equal chance of being included in the sample.
Term
Informed Consent
Definition
A written agreement to participate in a study made by an adult who has been informed of all the risks that participation may entail.
Term
Debriefing
Definition
A verbal description of the true nature and purpose of a study.
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