research methods: data analysis and presentation Flashcards
measures of central tendency?
descriptive statistics that give us a typical response for a set of data
what are the strengths of the mean?
uses all values
what are the weaknesses of the mean?
extreme values affect it
what are the strengths of the median?
not affected by outliers
what are the weaknesses of the median?
only uses 2 values
what are the strengths of the mode?
easy to work out
what are the weaknesses of the mode?
may not show us central tendency
what are the strengths of the range?
easy to calculate
what are the weaknesses of the range?
affected by extreme scores
what are the strengths of std?
not affected by outliers
what are the weaknesses of std?
too hard to work out
how to read skewed distributions?
left skewed- negative
right skewed- positive,
peak is mode, then median, bottom of curve is mean
