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Measurement & Data Analysis (what to measure (empirical question,…
Measurement &
Data Analysis
what to measure
empirical question
what r constructs
conceptual==> each variables ??
operation definition
scales of measurement
normal
ordinal
interval
ratio
Reliability & Validity
reliability
internal consistency
Test-retest reliability
validity
convergent
discriminant
Statistical Analysis
Descriptive statistic
central tendency
mean
mode
median
Variability
range
interquartile range
S.D.
variance
Association
data visually
frequency distribution
histrogram
normal distribution
stem & leaf display
inferential statistic and hypothesis testing
inferential statistic
estimation
hypothesis testing
Hypothesis testing
research question
population
operation definition
set null hypothesis+alternative hypothesis
run experiment
make conclusion
Beyond Hypothesis testing
all or none
confidence intervals
effect size