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Chapter 1: The Science Of Psychology
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What is Psychology? What is Psychology? What do psychologists do?
How have psychologists affected our lives?
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What is Psychology?
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What is Psychology? Psychology: the scientific study of behavior and mental processes Scientific study: utilizes the scientific method Behavior: observable events Mental processes: thoughts, feelings, and perceptions Psychology’s goal is to describe, predict, explain, and control (or change) behavior
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iRespond Question F Multiple Choice D382FDF D-8A43-B07A2DE9AD4E Dr. Amani is interested in investigating why women are more able to correctly interpret emotional expressions than are men. He is most interested in the scientific goal of _____. A.) explanation B.) prediction Answer is A: explanation C.) description D.) control E.)
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The Biological Approach
Focuses on the brain, nervous system, and other biological functions Genetics, heredity, and evolution Instincts Hormones and neurotransmitters
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The Behavioral Approach
John B. Watson, B. F. Skinner Scientific study of observable behavioral responses and their environmental determinants Patterns of reward and punishment
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The Psychodynamic Approach
Sigmund Freud Emphasizes unconscious thoughts Conflict between biological drives and the demands of society Early childhood experiences are especially important
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The Humanistic Approach
Carl Rogers, Abraham Maslow All individuals have an inborn drive to grow, develop, and be fulfilled Emphasis on free will Unconditional positive regard Conditions of worth
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The Cognitive Approach
Focuses on how people think, understand, and know about the world Brain is viewed as a problem-solving supercomputer Our behavior is affected by how we process information
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The Evolutionary Approach
Uses evolutionary principles (adaptation, reproduction, and natural selection) to explain human behaviors Aggression Fear Mating patterns
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The Sociocultural Approach
Examines the influences of society and culture on behavior Compares behavior across countries Compares group differences within a country
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Seven Contemporary Approaches
Industrial-Organizational Community Personality Forensic Social Health Sensation and Perception Clinical and Counseling Motivation and Emotion Learning Cognitive Behavioral Neuroscience Developmental Sport
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Seven Contemporary Approaches
You are studying alcoholism. What kinds of questions would researchers from each perspective be interested in asking? Biological Behavioral Psychodynamic Humanistic Cognitive Evolutionary Sociocultural
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The Scientific Method Five steps: Observing some phenomenon
Formulating hypotheses and predictions Testing through empirical research Drawing conclusions Evaluating conclusions
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The Scientific Method Variable: anything that can change
Theory: a broad explanation or prediction about the topic of interest Must be falsifiable Hypothesis: a prediction that is stated in a way that allows it to be tested Operational definition: the translation of a hypothesis into specific, testable procedures Ex: helping behavior
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Types of Research: Descriptive
Naturalistic observation: behavior is observed in its natural environment, with no interference Advantages: natural, spontaneous behavior Disadvantages: researcher has no control
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Types of Research: Descriptive
Surveys: a representative sample of people are asked questions about various topics Advantages: quick and inexpensive Disadvantages: Sample may not be representative Bias may skew results People may not respond honestly
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Types of Research: Descriptive
Case study: behavior of one person or a group of people is studied in-depth Advantages: Provides detailed, descriptive information Useful for forming hypotheses Disadvantages: May not apply to other people / groups Time consuming and expensive Researcher bias
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iRespond Question F Multiple Choice Dr.Okawa is interested in studying the effect that neurological trauma can have on short-term memory. First, he collects detailed information from a small number of individuals who have experienced brain damage. Then, using information provided by medical records, interviews, and observations, Dr. Okawa attempts to create an in-depth portrait of each individual. What type of research method was used in this study? D6EBD51C-BA2C-3F48-AD1D-E74F484BD48E A.) Case study B.) Naturalistic observation C.) Experimental method E.) D.) Survey
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Types of Research: Correlation
The relationship between two variables is examined to determine if they are associated Correlation coefficient (+1 to -1) tells us the strength and the direction of the relationship Positive: varies together Negative: varies opposite Larger relationship closer to 1
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Types of Research: Correlation
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Types of Research: Correlation
Correlation does not equal causation!
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Types of Research: Experimental
Treatment: manipulation used by an experimenter Experimental group: group that receives treatment manipulation Control group: group that does not receive treatment manipulation Independent variable: the variable being manipulated Dependent variable: the variable being measured Random assignment
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Research Ethics Experiments must follow APA guidelines
Protection of participants from physical and mental harm Right of participants to privacy Assurance that participation in research is completely voluntary IRB (independent research board) approves all experiments Informed consent Debriefing Deception?
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