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361 Ch 1 & 2

Industrial Psychology

Industrial - Organizational (I-O) Psychology involves the application of the methods, facts and principles of psychology to people at work
Hawthorne studies long-term research program found that social and psychological factors in the work environment were of potentially greater importance than physical factors
control group group of research participants not exposed to the independent variable
correlation relationship between two variables.
dependent variable the resulting behavior of the subjects which depends on the manipulation of the independent variable
descriptive statistics ways of describing or representing research data in a concise, meaningful manner
experimental group group of research participants exposed to the independent variable
experimental method scientific way to determine the effet or influence of a variable on the subjects' performance or behavior
fixed-alternative questions survey questions to which respondents limit their answers to the choices or alternatives presented. Similar to multiple-choice
frequency distribution graphic representation of raw data that shows the number of times each score occurs
independent variable stimulus variable that is manipulated
inferential statistics methods for analyzing research data that express relationships in terms of probabilities
matched group design method for ensuring similarity between experimental and control groups that matches subjects in both groups on characteristics (age, job experience, IQ)
meta-analysis large-scale reanalysis of the results of previous research studies
naturalistic observation scientific observation of behavior in its natural setting w/o independent variable
normal distribution bell-shaped distribution of data in which most scores fall near the center and few fall at the extreme low and high ends
open-end questions survey questions to which answers are given in ones' own words, similar to essay questions
probability idea that the differences between the means of experimental and control groups could have occurred by chance
probability sampling each person in the population has a known probability or chance of being included in the sample
quota sampling sample must reflect the proportions of the larger population, quotas are established for various categories (age, gender, ethnic groups)
random group design method for ensuring similarity between experimental & control groups that assigns subjects at random to each condition
scientific method a controlled, objective, and systematic approach to research
skewed distribution an asymmetrical distribution of data with most scores at either the high or low end
standard deviation measure of the variability of a distribution, a precise distance along the distribution's baseline
statistical significance level of confidence in the results of an experiment. based on calculation of probability values
survey research method interviews, behavioral observations, and questionnaires designed to sample what people say about their feelings or opinions, or how they say they will behave in a given situation
correlation coefficient strength and direction of relationship correlation
Created by: 100000090512430