psyco 105: individual and social behaviour lecture 1: the ways and means of psychology

PSYCO 105: Individual and Social Behaviour

Lecture 1: The Ways and Means of Psychology

What is psychology? Psychology is the scientific study

of the mind and behaviour The scientific study of the causes

of behaviour; also the application of the findings of psychological research to the solution of problems (Carlson et al., 2000)

Fields of Psychology Biological Foundations Individual and Social Behaviour Applied Psychology

Biological Foundations Physiological Psychology Psychophysiology Comparative Psychology Behaviour Analysis Behaviour Genetics Cognitive Psychology Experimental Neuropsychology

Individual and Social Behaviour Developmental Psychology Social Psychology Personality Psychology Cross-Cultural Psychology Clinical Psychology

Applied Psychology Organizational Psychology Educational Psychology Health Psychology Community Psychology Engineering Psychology (Human

Factors)

Ways of Knowing Tenacity (Faith) Authority Consensus Reason Observation

Goals of Psychology

To “understand” human behaviour Describe Explain Predict Control

Research Strategies Experimentation Correlational Studies Descriptive Studies

Experimentation Independent

VariableThe factor that is

systematically manipulated so that the researcher can examine its effect on a dependent variable.

Dependent Variable

The variable (usually a behaviour) that is affected by the independent variable.

Research Settings Laboratory Studies Field Studies

Data Collection Methods Self-Report

Questionnaires Interviews

Observational Methods Naturalistic Observation Participant Observation Tests

Ethics Informed Consent Risks and Benefits Deception Privacy, Confidentiality, and

Anonymity Special Groups

Informed Consent A description of the study should be

provided in advance, including mention of: the purpose of the research; expected benefits of the research; methods (tasks to be performed); any effects, risks or inconveniences of the procedure; rights of the participant; and any possible alternative procedures.

Risks and Benefits The onus is on the researcher to

avid or minimize risks to the subjects, both in carrying out the research and in publication of the results.

Deception Deception is a situation in which

subjects have essential information withheld and/or are intentionally misled about procedures and purposes. A thorough debriefing is particularly important in studies involving deception.

Privacy, Confidentiality and Anonymity Personal information given by the

subject will be confidential. Wherever possible, the researcher will take steps to ensure the anonymity of the subjects.

Vulnerable Groups Special care must be taken with

vulnerable groups to ensure ethical treatment (e.g., prisoners, people with mental disabilities, other cultures, etc.)

Bias in Psychological Research Random Error

Causes random variability in DV Systematic Error or Bias

Causes nonrandom variability in DV other than that caused by the IV.

Types of Bias Sample Bias Measurement Bias Observer’s (Researcher’s) Bias Subject’s Bias

Sample and Measurement Biases Sample Biases

Random assignment

Measurement Biases Validity Reliability

Observer’s and Subject’s Biases Observer-

Expectancy Effects Single-blind

studies

Subject-Expectancy Effects Double-blind

studies Placebo

Descriptive Statistics Central Tendency

Mean Median

Variability Standard deviation

Assessing Relations Correlation Coefficient

A measurement of the degree to which two variables are related.

Scatterplot A graphic representation of a

correlation; one value is plotted against the horizontal axis and the other against the vertical axis.

Inferential Statistics Statistical Significance

The likelihood that an observed relation or difference between two variables is not due to chance factors