2.1 Flashcards
format for thesis questions
what is the relationship between xyz, how is xyz affected by abc
analyzing thesis question
what are main variables, statistically measurable, enough accessible data, social relevance
population
group being studied
sample
selection of individuals from population
inference
prediction about population based on sample
cross sectional study
different groups at same time, specific timeframe, wide range of individuals
longitudinal study
small group over a long period of time
time series data
data accumulated over a long period of time
qualitative data
not measurable numerically, categorical, multiple choice answers
qualitative data
bar graph circle graph pictographs
quantitative data
numerical, discrete or continuous
quantitative discrete
bar, histogram (over long range)
quantitative continuous
box and whisker, histogram
simple random sampling
fast/easy, may not be representative of pop, e.g. pick names out of hat
systematic random sampling
random starting point, then select every nth object, n is sample interval = pop size/sample size, population spread