Questions and Answers Graded A+
types of research designs - Correct answer-descriptive research
correlational research
experimental research
positive correlation - Correct answer-increase in a - increase in b
ex. more studying-higher grade
negative correlation - Correct answer-increase a-decrease b
temperatures go up - hot chocolate sales go down
experimental research steps - Correct answer-1. random assignment of participants
2. manipulation of an independent variable
3. measurement of effect
independent variable, dependent variable
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,experimental group - Correct answer-group that is subjected to the independent
variable
control group - Correct answer-group that is similar in every way to the
experimental group except for the manipulation of the independent variable
random sample - Correct answer-draw 30 names out of hat
random assignment - Correct answer-randomly placed in control or exp. group
placebo control group - Correct answer-group that does not receive treatment
including active ingredient (special type of control group)
double blind design - Correct answer-neither participant nor researcher knows
they're getting placebo
protects against research bias
good way to protect against 3rd variables - Correct answer-random assignment
measurement - Correct answer-reliability and validity are always two key issues
reliability - Correct answer-consistency of a measure
ex. iq test, if same circumstances given, gives consistent results
validity - Correct answer-how well does my measure measure what i say it
measures
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, truthfulness
data collection techniques - Correct answer-self-report measures (could lie)
reports by other ppl (informants, parents)
direct observation
psychophysiological measures (heart rate, pulse, bp)
descriptive statistics:
measures of central tendency - Correct answer-mean is not resistant to outliers
median is resistant
mode=most common number
measures of variability - Correct answer-range
standard deviation
when was term psychology introduced - Correct answer-18th century
psychology is greek word for - Correct answer-psyche:
"soul" "mind"
originally branch of - Correct answer-philosophy studying phenomena of mental
life
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