Chapter 2: Research Methods Flashcards
History of Relationship Science
it is quite new; began in earnest in 1960s and is less well known and less well understood than most other sciences; made tremendous strides in the past 50 years ; often uses diverse samples of people; examine various relationships (family, friendship, romantic etc); relationships are often studied over long periods of time; study pleasant and unpleasant aspects and follow them in their natural settings
Where do the questions that researchers ask come from?
personal experience, social problems, previous research, theories
Convenience Sample
anyone who is readily available
Representative Sample
participants who resemble the entire population who are of interest
Volunteer Bias
of those invited, people who agree to participate may differ from those who refuse; Ex) one study found that volunteers were better educated, employed in higher-status jobs, and more likely to have cohabited than those who refused to participate in a longitudinal study of their relationships
Why are convenience samples more often used?
representative samples are more expensive
What is the danger of convenience samples?
that they will differ in important ways from other samples that are more representative; but many processes studied by relationship scientists are so basic that they do not differ much from group to group
The people in a representative sample….
reflect the demographic characteristics such as sex, age, race etc of the entire population of people that the researchers wish to study
What are the two different research designs used in relationship science?
Correlational designs and experimental designs
Correlational Designs
study naturally occuring events to find associations between them; it tells us that the two events are associated but it DOES NOT explain causal connections, if any, between the two events
Positive Correlation
increases in one event are associated with increases in the other
Negative Correlation
increases in one event are associated with decreases in the other
Experimental Designs
manipulate events to delineate the causal connections between them; illuminate cause and effect; “if we change x, what happens to y?”
You can not do experiments on…
events that you cannot control: ex) how much two people love each other
Types of Data Collected
self reports, observations, physiological measures, archival materials