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Lecture1-Dr.Naif Al-Mutawa
1.
Chapter 1 The Nature
of Psychology Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
2.
The Nature of
psychology • Psychology – Can be defined as the scientific study of behavior and mental processes • Psychology is very broad in its scope – Topics include face recognition, social judgements, memory, obesity, violence and many more Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
3.
The Historical Origins
of Psychology • The roots of psychology date back to 4th & 5th centuries BC and the great philosophers of ancient Greece • Nature-nurture debate – One of the earliest debates focused on whether human capabilities are inborn (nature) or acquired through experience (nurture) – Most psychologists these days take an integrated approach and look at how nature and nurture combine to shape human psychology Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
4.
The Historical Origins
of Psychology • Scientific psychology – The idea that the mind and behavior could be the subject of scientific study developed in the late 19th Century • Early “schools” of psychology included: – Structuralism - analysis of mental structures – Functionalism - study of mental adaptation – behaviorism - conditioning shapes behavior – Gestalt psychology - experience shapes perception – Psychoanalysis - unconscious shapes personality Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
5.
The Historical Origins
of Psychology • 20th C Developments – Information-processing models - study of humans as processors of information – Psycholinguistics - study of mental structures associated with language – Neuropsychology - study of relationship between neurological events and mental processes Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
6.
Contemporary Psychological
Perspectives Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
7.
Contemporary Psychological
Perspectives • Biological perspective – Seeks to understand the relationship between behavior and neurobiological processes • behavioral perspective – Regards nearly all behavior as the result of conditioning and reinforcement Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
8.
Contemporary Psychological
Perspectives • Cognitive Perspective – behavior understood by study of mental processes including perceiving, remembering, reasoning, deciding and problem solving • Psychoanalytic Perspective – behavior is the result of unconscious processes, including desires, fears and beliefs Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
9.
Contemporary Psychological
Perspectives • Subjectivist perspective – behavior is understood in relation to people’s subjective experience and construction of the world around them • Relationships between psychological and biological perspectives – Biological perspective differs from these other perspectives in that its principles are partly drawn from biology Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
10.
Contemporary Psychological
Perspectives • ...Relationships between psychological and biological perspectives – Reductionism - attempt by biological researchers to explain psychological principles in terms of biological principles – Psychological findings, concepts and principles can direct focus of biological research – Biology alone insufficient as it acts in concert with past circumstances and current environment Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
11.
Contemporary Psychological
Perspectives • Major subfields of psychology – Biological psychology – Cognitive psychology – Developmental psychology – Social & personality psychology – Clinical & counselling psychology – School & educational psychology – Organizational & engineering psychology Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
12.
Contemporary Psychological
Perspectives • Twenty-first century psychology – Cognitive neuroscience – focuses on understanding cognitive processes using new techniques including neuroimaging and brain-scanning – Evolutionary psychology – studies the biological origins of psychological mechanisms. It also incorporates ideas from anthropology and psychiatry – Cultural psychology – studies how culture influences mental representations and psychological processes – Positive psychology – seeks to understand human flourishing using empirical methods Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
13.
How Psychological Research
is Done • Generating hypotheses – First step in research is to decide a hypothesis – a statement that can be tested – Source for hypothesis is often scientific theory – an inter-related set of propositions about a particular phenomenon – Testing hypotheses based on competing theories is a good way to advance scientific knowledge – When we use scientific methods they are unbiased (do not favor either hypothesis) and reliable (same results would be found by research being repeated) Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
14.
How Psychological Research
is Done • Experiments – Scientific method where conditions controlled in order to discover cause and effect relationships between variables (variable = something measurable that can occur with different values) – Independent variable – hypothesised “cause”; variable precisely controlled by experimenter and independent of participant – Dependent variable – hypothesised “effect”; variable influenced by independent variable and almost always measure of participants’ behavior Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
15.
How Psychological Research
is Done • ...Experiments – Experimental group (hypothesised cause present) and control group (hypothesised cause absent). Control group provides baseline for comparison – Random assignment refers to a system of allocating participants to groups so that each participant has an equal chance of being placed in any group – Measurement refers to a system for assigning numbers to variables – Statistics - the mathematical discipline which enables experimental results to be summarised and interpreted Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
16.
How Psychological Research
is Done • Correlation – Method used for situations where experiments are not feasible – Correlational method is used to determine whether a naturally occurring variable is associated (correlated) with another variable of interest – Statistic used is correlation coefficient (symbolised by r) which estimates degree to which two variables are related (between -1.00 and +1.00) Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
17.
How Psychological Research
is Done Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
18.
How Psychological Research
is Done • ...Correlation – Correlation and causation • In experimental study an independent variable is systematically manipulated to determine its causal effect on a dependent variable – we cannot infer cause-and-effect relationships from correlational studies because: – With just evidence of a correlation it is not possible to say which variable is independent and which variable is dependent – It may be possible that two variables can be correlated when neither is the cause of the other Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
19.
How Psychological Research
is Done • Observation – Direct observation – to simply observe the phenomenon under study as it occurs naturally • Accuracy in recording behavior is essential to avoid bias – Survey method – where direct observation difficult, indirect observation survey methods can be used including questionnaires or interviews. • Survey method more open to bias, especially social desirability effects – Case histories – partial biography of a particular individual • Major limitation is reliance on people’s memories of past events Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
20.
How Psychological Research
is Done • Literature reviews – Scholarly summary of an existing body of research on a particular topic – Two forms of literature review • Narrative review – authors write descriptions of studies previously conducted & discuss strengths of available evidence • Meta-analysis – statistical techniques used to combine and interpret evidence of studies previously conducted. More likely to be systematic and balanced than narrative reviews Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
21.
How Psychological Research
is Done • Ethics of psychological research – Research with humans – principles include: • Minimal risk: risks associated with the research should be no greater than those encountered in daily life • Informed consent: participants should be informed of issues that may affect willingness to take part in a study, must voluntarily participate & be able to withdraw at any time without penalty. Where it is not possible to fully inform participants they must be debriefed as soon as possible afterwards • Right to privacy: personal information must be kept confidential unless otherwise agreed by a participant’s explicit consent Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
22.
How Psychological Research
is Done • ...Ethics of psychological research – Research with animals • Two main reasons why animals are used in psychological research include understanding of animal behavior in itself and to gain models for human systems which could be impossible or unethical to obtain from humans • Ethical principles require thorough justification in terms of knowledge gained to allow any harmful or painful procedures on animals. Also, researchers required to treat animals humanely and with minimum suffering Use with Atkinson & Hilgard’s Introduction to Psychology 15th edition Nolen-Hoeksema, Fredrickson, Loftus, Wagenaar ISBN 9781844807284 © 2009 Cengage Learning
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