Question | Answer |
psychology | a study of thinking, feeling, and behavior |
hypothesis | tentative statement about the relationship between two variables |
variable | things controlled or observed in a study |
experiment | when one o more variables is manipulated by the researcher to see if it affects another variable |
independent variable | the variable that the researcher controls |
dependent variable | the variable that is measured at the end, outcome variable |
experimental group | gets the iv |
control group | other group used as a control |
surveys | asking people questions. to be valid, the sample must be a representation of the population. problems with this research designs include the fallibility of memory and social desirability bias. |
social desirability bias | people say what would put them in positive light |
case study | in depth study of one or a few subjects |
observation | don't do anything, just watch |
obtrusive observation | the observer is noticeable |
unobtrusive observation | the observer is not noticeable, which creates a problem of ethics |
correlation | shows a relationship between two things, can be positive or negative. Does NOT show cause and effect |
correlational coefficient | numerical index of strength of relationship (r.) |
cross sectional design | sampling subjects of different ages for one time |
longitudinal study | study the same subjects over time |
statistically significant | the probability that your findings are due to chance is 5% or less |