Research and statistics
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case study
one person is studied in depht in the hope of revealing universal principles

naturalistic observation
observing and recording behavior in naturally occuring situations without trying to manipulate it

Survey
a technique for ascertaining the selfreported attitudes or behaviors of people

wording effects
subtle influences in the sequence of phrasing of questions

representative sample
a sample of the whole group you want to study and describe

random sample
a sample where every person in the entire group has an equal chance of participating

population
all the cases in a group from which a samle can be drawn for study

false consensus effect
the tendency to overestimate the extent to which others share our beliefs and behaviors.

experimental condition
the condition of an experiment that exposes participent to the treatment of independent variable

control condition
the condition of an experiment that contrasts with the experimental condition

correlation
a measure of the extent to which two factors cary togehter and how well either factor predicts the other

correlation coefficient r
the mathematical expression of the correlation relationship ranging from 1 fo +1

illusory correlation
ther preception of a relationship when none exsists

positive correlation
when two sets of scores are directly related to each other/ rise or fall together

negative correlation
when two things relate inversely

standard deviation
square root(sum of (deviations)squared)/ (# of scores)

statistical significance
if something is statistically significan, the obtained result did not occur by change