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Psychology in Action Chapter 1: Introduction to Psychology & Its Research Methods Introducing Psychology What is Psychology? The scientific study of behavior & mental processes. Psychology focuses on critical thinking & is scientific. Pseudopsychologies (e.g., psychics, mediums) are nonscientific. Introducing Psychology: Psychology’s Four Goals 1. 2. 3. 4. Description: tells “what” occurred Explanation: tells “why” a behavior or mental process occurred Prediction: identifies conditions under which a future behavior or mental process is likely to occur Change: applies psychological knowledge to prevent unwanted behavior or to bring about desired goals Applying Psychology To Work: Examples Biopsychology/ Neuroscience Clinical & Counseling Psychology Cognitive Psychology Developmental Psychology Educational & School Psychology Experimental Psychology Forensic Psychology Gender/Cultural Psychology Industrial/Organizational Psychology Social Psychology Careers in Psychology: Percentage of Psychology Degrees by Specialty Origins of Psychology Wilhelm Wundt: Considered to be the “father of psychology” Developed the first psychological laboratory in Germany in 1879 Trained the first scientific psychologists His ideas would lead to multiple different psychological perspectives: Structuralism Functionalism Psychoanalytic/Psychodynamic Behavioral Humanistic Cognitive Neuroscience/Biopsychology Evolutionary Sociocultural Your Job… Create point form notes on each of the major perspectives identified on pages 1013 of your textbook Be sure to identify how each perspective seeks to explain human behavior, as well as particular scientists associated with each perspective Origins of Psychology Structuralism: sought to identify the basic building blocks, or structures, of the mind through introspection – looking inward at basic sensations and feelings Edward Titchener = key leader Doomed to fail – no scientific way existed with which to settle disputes Origins of Psychology Cont’d Functionalism: studied how the mind functions to adapt organisms to their environment Asked Why? and How? Strongly influenced by Darwin’s Theory of Evolution and the concept of natural selection William James = key leader Origins of Psychology (Continued) Psychoanalytic/ Psychodynamic Perspective: unconscious processes & unresolved past conflicts between “acceptable” and “unacceptable” behaviors Freud = key founder Behaviors based on sexual impulses Believed most of our development occurred during childhood Sigmund Freud (1856-1939) Origins of Psychology (Continued) B. F. Skinner (1904-1990) Behavioral Perspective: objective, observable environmental influences on behavior Watson, Pavlov, & Skinner were key figures Believed we could use external stimuli to shape human behavior http://www.youtube.com/watc h?v=qy_mIEnnlF4 Origins of Psychology (Continued) Humanistic Perspective: free will, self-actualization, & a positive, growth-seeking human nature – selfactualization (when we reach our full potential) Opposite to behaviorists Rogers & Maslow were key figures Carl Rogers (1902-1987) Abraham Maslow (1908-1970) Origins of Psychology (Continued) Cognitive Perspective: studies how we gather, encode and store information such as problem solving, memory, language, & information processing Neuroscience/ Biopsychology Perspective: studies how genetics & other biological processes in the brain & nervous system affect behavior Origins of Psychology (Continued) Evolutionary Perspective: argues that natural selection, adaptation, & evolution help to explain behavior Sociocultural Perspective: social interaction & cultural determinants Show how factors such as ethnicity, religion, occupation and SES impact behavior Origins of Psychology: One Unifying Theme of Modern Psychology Biopsychosocial model: combines all seven major perspectives Views biological processes, psychological factors and social forces as interrelated influences on behavior Pause & Reflect: Critical Thinking Why do you think psychologists & other scientists may need multiple perspectives when it comes to understanding the unknown? Do See a Vase Or Two Faces? Multiple perspectives allow psychologists to better understand research & complex behavior & mental processes. Assignment: Outrageous Celebrities Choose one celebrity who has demonstrated some “not-so-normal” behaviors in recent years Summarize the behaviors (explain what they have been doing; identify at least 3 behaviors) Using the chart on page 14, explain how each of the seven modern perspectives would explain the celebrity’s behaviors Ex. Freud may explain drinking or drug use to a past conflict between the individual and their parent The Science of Psychology Research Methods “What is research, but a blind date with knowledge” – William Henry The Science of Psychology Basic Research: conducted to advance scientific knowledge Knowledge for its own sake Typically conducted in universities or research labs Meets the first three goals of psychology – description, explanation and prediction Applied Research: designed to solve practical problems Meets the fourth goal of psychology – to change existing real world problems The Scientific Method The Science of Psychology: Ethical Guidelines Ethical Guidelines for Human Research Participants: • Informed consent • Voluntary participation • Restricted use of deception & Debriefing • Confidentiality • Alternative activities (for college credits) The Science of Psychology: Ethical Guidelines (Continued) Rights of Nonhuman Participants: Advocates believe nonhuman research offers significant scientific benefits. Opponents question these benefits & suggest nonhuman animals cannot give informed consent. General Guidelines: Psychologists must maintain high standards for both human & nonhuman animal research. Research Methods Four key research methods: 1. 2. 3. 4. Experimental Descriptive Correlational Biological Four Key Research Methods 1. Experimental Research: carefully controlled scientific procedure that manipulates variables to determine cause & effect Key features of an experiment: Independent variable (factor that is manipulated) versus dependent variable (factor that is measured) Experimental group (receives treatment) versus control group (receives no treatment) Does TV increase aggression? Only an experiment can determine cause & effect. Research Methods—Experimental Potential researcher problems: Experimenter bias - researcher influences the research results in the expected direction Solution = Double Blind Study Ethnocentrism - believing one's culture is typical of all cultures May see impact of personal stereotypes Research Methods—Experimental Potential participant problems: Sample bias - research participants are unrepresentative of the larger population Solution = random sampling and random assignment Participant bias - research participants are influenced by the researcher or experimental conditions Ex. May be embarrassed so may lie Research Methods—Experimental (Continued) Research Methods—Descriptive 2. Descriptive Research: observes & records behavior without producing causal explanations Three types of descriptive research: Naturalistic Observation - observation & recording of behavior in natural state or habitat Survey - assessment of a sample or population Case Study - in-depth study of a single participant Pause & Reflect: Psychology at Work What could be the advantage of studying psychological research methods like naturalistic observation? What could be the disadvantage? Research Methods—Correlational 3. Correlational Research: observes or measures (without directly manipulating) two or more variables to find relationships between them Be Aware: Correlation does not imply causation Example Pg. 31 – ice cream consumption and drowning are highly correlated. Does this mean eating ice cream causes people to drown? Of course not! A third factor, such as time of year, affects both ice cream consumption and time spent in the water Research Methods—Correlational Positive Correlation: two variables move (or vary) in the same direction— either up or down Ex. Studying for a test is positively correlated with higher test scores Research Methods—Correlational Negative Correlation: two variables move (or vary) in the opposite direction— either up or down Ex. Missing more school decreases grades Research Methods—Correlational Zero Correlation: no relationship between two variables (when one variable increases, the other can increase, decrease, or stay the same) Research Methods—Correlational Research Methods—Correlational Can you see why correlation can never show cause & effect? Research Methods—Biological 4. Biological Research: scientific studies of the brain & other parts of the nervous system Research Methods—Biological Methods of Biological Research: Lesioning (systematically destroying brain tissue to study the effects on behavior and mental processes) Dissection Observation & Case Studies – particularly of living people who have had injuries, diseases and disorders that affected brain functioning Electrical Recordings of brain activity