Unit 2: The Scientific Foundations of Psychology Flashcards
terms, definitions, and key figures of important psychological perspectives
psychology
the scientific study of the behavior and mental processes of humans and animals
Why is psychology considered scientific?
Psychology is scientific because it uses empiricism (first-hand experience) and the scientific method to critically evaluate evidence
empiricism
true knowledge or justification coming from first-hand experience
–> related to the “blank slate”/nurture perspective
structuralism
an early school of psychology focused on identifying the elements of thought and mind (structures) the way early chemists developed the periodic table to classify elements
introspection
the process of looking inward to directly observe one’s own psychological processes
functionalism
assumes a purpose to all of our behaviors as serving a necessary function
–> related to natural selection
positive psychology
the scientific study of optimal human functioning; aims to discover and promote strengths that enable individuals and communities to thrive
nature vs. nurture issue
the debate that behavior and mental processes occur because they are innate, nature, or as a result of experience and our environment, nurture
natural selection
survival of the fittest; those with the traits best suitable for survival in an environment will continue and reproduce
basic research
scientific inquiry that aims to increase psychology’s knowledge base; pure science
applied research
scientific inquiry that aims to use psychology to solve practical problems; real-world application of science
hindsight bias
the tendency to believe, after learning an outcome, that we would have foreseen it; We knew it all along!
–> after a couple breaks up, friends say “they were never a good match”
overconfidence
the tendency to think we know more than we actually do
theory
a principle or body of interrelated principles that explains or predicts a number of interrelated phenomena
hypothesis
an empirically testable position, usually based on theory, that states an unexpected outcome resulting from specific conditions or assumptions
operational definition
a description of an experiment in terms of the operations by which it could be observed and measured
replication
the repetition of an original experiment or research study to verify or bolster confidence in its results
case study
an in-depth investigation of a single individual or group in order to find revealing universal principles
survey
a descriptive technique for obtaining the self-reported attitudes or behaviors of a particular group, usually by questioning a representative random sample of the group
random sample
a sample that fairly represents a population because each member has an equal chance of inclusion
naturalistic observation
a descriptive technique of observing and recording behavior in naturally occurring situations without trying to manipulate or control the situation
correlation
a measure of the extent to which two factors vary together, and how well either factor predicts the other
–> if we look at study skills and GPA, we might say there is a correlation between studying and strong grades
correlation coefficient
a statistical index of the relationship between two variables
–> variables that are positively correlated are measured from r=0.1 to r=1.0, while variables that are negatively correlated are measured from r=-0.1 to r=-1.0
scatter plot
a graphed cluster of dots, each of which represents the values of two variables
illusory correlation
perceiving a relationship where none exists, or perceiving a stronger-than-actual relationship