CHAPTER 3 Flashcards
confirmation bias
which makes researchers more likely to ignore data that force them to contradict their preexisting notions.
survey
ask lots of people questions, either in person, over the phone/web, or using a questionnaire
laboratory observation
watch organisms in a controlled setting
naturalistic observation
watch organisms in their normal environment
case study
gather lots of information about one individual
DISadvantages of naturalistic observation
- behavior of the participants can be contrived, due to the observer effect
- observer bias
DISadvantages of laboratory observation?
observer bias
DISadvantages of case studies
- the results are unique to one individual, and so findings in one case study cannot always be generalized to others
- detailed observation is vulnerable to observer bias
DISadvantages of surveys
- it can be challenging to get a representative sample
- people often misremember or misrepresent themselves
- courtesy bias
observer bias
occurs when a person recognizes only those actions that support the preconceived expectation, and ignores contradictory actions
observer effect
process wherein animals or people who know they are being watched will not behave normally
participant observation
technique where in a researcher participates in the group she is observing
representative sample
a randomly selected group large enough to produce reliable data
courtesy bias
occurs in surveys when participants respond inaccurately to avoid being offensive
what do researchers use to avoid observer bias
blind observers
A correlation is a measure of the relationship between two or more is a
variable
The variable that a researcher manipulates is …
the independent variable
The variable that a researcher measures is…
dependant
confounding
variable might interfere with an experiment by blurring the relationship between independent and dependent variables.
experimental
group in an experiment is exposed to the independent variable.
control group
group in an experiment is not exposed to the independent variable. It is often used as a point of comparison.
random assignment
is an experiment means that each participant should have an equal change of being assigned to any experimental or control group.
single-blind study
participants don’t know what group (experimental or control) they’ve been assigned to, but researchers do
improvement in a patient due to how the participant believes a treatment should work
placebo effect
neither participants nor experimenters know what group participants have been assigned to
double-blind study
assumption that athletes do not do as well academically when compared to nonathletes
stereotype