All Terms For Phyc/Soc (5/26) Flashcards
1 Cofounding variable
A variable that affects both the independent and dependent variable
EX) coffee drinkers are more common to develop heart disease. BUT, those coffee drinkers also smoked and thats what made the heart disease prevalent
1 A mediating variable
A variable that explains the relationship between an independent and dependent variable
EX) people who have lower income experience cancer more frequently. The cancer does not check to see if someone has lower income first. So, scare food, lack of health care, explain why cancer is more popular in these populations
1 A moderating variable
A variable that is a step between the relationship between independent and dependent
EX) People who have a stressful job tend to have anxiety. A moderating variable would be exercise or other healthy mechanisms to cope with the stress
1 Experimental Studies
the researchers directly manipulate an independent variable
1 Observational studies
Researchers carefully analyze pre-existing patterns of variation to obtain information on significant relationships
1 Quantitative measures
Uses numbers to measure
1 Qualitative measures
uses verbal or open-ended measures
1 Cohort studies
Groups are organized based on a characteristic that is common
EX) age, gender
1 Prospective analysis
Data is gathered moving forward
1 Retrospective studies
Data is gathered looking back
1 Internal validity
The extent to which we can draw causal conclusions from the study data. Did we manipulate the independent variable enough so that it changed the dependent?
1 External validity
Extent to which we can generalize our results onto different experimental or life situations
1 Test validity
Describes how well research design was able to test what it was intended to test
1 Subtypes of test validity
Construct validity
Content validity- covers the full scope
Criterion validity
Predictive validity
1 Reliability
Consistency
1 Accuracy
How close to the actual/real measurements
1 Self-reporting/ response bias
Allowing respondents to chose their own answers on a survey
1 Social diserability
Respondents answer in a way that makes them look more socially successful
1 Acquiescence bias
The tendency for a respondent to answer yes when they are asked a question
2 Instinctual behaviors
Animals do not attend school, have symbolic culture, use language or many of these hard-coded behaviors shaped by genetics
2 Epigenetics
Changes to the genome that do not involve changing actual nucleotide content
EX) methylation
2 Pregnancy stages
First- major structures of fetus are formed
Second- details get filled in and the fetus grows
Third- involves growing and finalizing preparations for the outside world
2 The Moro reflex
startle reflex that occurs in response to sudden movement or loud sounds
2 Babinski reflex
unhealthy- baby’s foot is stroked and the big toe bends up and others toes fan out