Statistics 1

amy.mchugh
Mind Map by amy.mchugh, updated more than 1 year ago
amy.mchugh
Created by amy.mchugh almost 5 years ago
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stats revision semester 1
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Statistics 1
1 Week 1
1.1 measurement
1.1.1 Concept-->conceptual definition-->operational definition-->variable
1.2 True value
1.2.1 Systematic error
1.2.1.1 random error
1.2.1.1.1 reliability
1.2.1.2 vailidity
1.3 levels of measurement
1.3.1 nominal, ordinal, interval
2 Week 2
2.1 research design
2.1.1 hypotheses
2.1.1.1 specificity & direction of effect
2.1.1.2 falsifiable
2.1.1.3 empirically testable
2.1.2 in/dependent variable
2.1.3 causal explanations
2.1.3.1 time order
2.1.3.2 non-spuriousness
2.1.3.3 theoretical consistency
2.1.3.4 covariation
2.1.4 model/theory/assumptions
2.1.5 research design
2.1.5.1 effects
2.1.5.2 true experiment
2.1.5.3 quasi experiment
2.1.6 internal/external validity
2.1.6.1 selection and out of sample extrapolation
2.1.7 explanatory/confirmatory design
2.1.7.1 omitted variables
2.1.7.2 regression to the mean
2.1.7.3 non random sample selection
3 Week 3
3.1 distributions
3.1.1 simple frequency distribution
3.1.1.1 measures of central tendency
3.1.1.1.1 mode, median, mean
3.1.1.1.1.1 caveat about the mean
3.1.1.1.1.2 mean: dispersion and central tendency
3.1.1.1.1.2.1 dispersion: range, interquartile range, variance, standard deviation
3.2 descriptive stats
3.3 levels of measurement
3.4 measures of dispersion
3.5 skew
3.5.1 log & power transformations to transform skew! e.g. transform interval into ordinal
3.6 recodes and transformations
4 Week 4
4.1 standard deviation/variance
4.2 z scores
4.3 probability, sampling & inference
4.3.1 samples and populations
4.4 the basic law of probability
4.4.1 joint/union/conditional probability
4.4.2 probability distribution
4.4.3 priori/posterior probability
4.4.4 the general rule of multiplication
4.4.5 the general rule of addition
4.5 random sampling: selection and response bias
4.5.1 random error
5 Week 6
6 Week 5
6.1 inference with sample statistics
6.2 confidence intervals
6.3 t scores
6.4 standard error
6.5 polling
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