Ch.2:1 What is Research? Flashcards
Naturalistic observation
Research method in which the psychologist observes the subject in a natural setting without interfering
Case study
Research method that involves an intensive investigation of one or more participants
Survey
Research method which information is obtained by asking many individuals a fixed set of questions
Longitudinal study
Research method in which data are collected about a group of participants over a number of years to assess how certain characteristics change or remain the same during development
Cross- sectional study
Research method in which data are collected from groups of participants of different ages and compared so that conclusions can be drawn about differences due to age
Correlation
The measure of a relationship between two variables or sets of data
Positive correlation
A high rank on one measure tends to go with a high rank on the other ( bottom left increasing to top right)
Negative correlation
A high rank on one measure tend to go with a low rank on the other ( bottom right increasing to the top left)
Hypothesis
an educated guess about the relationship between two variables
Variable
Any factor that is capable of change
Experimental group
The group to which an independent variable is applied
Independent variable
The one experimenters change or late so they can observe the effects
Control group
The group that is treated the same way as the experimental treatment ( the independent variable) is not applied
Dependent variable
The one that changes in relation to he independent variable
Sample
The small group of participants, out of the total number available, that a researcher studies