6 Statistical Analysis Techniques

Question 1

Measures of central tendencies

Answer 1

Mode: most frequently selected answer (nominal, ordinal, interval/ratio)
Median: middle value (ordinal, interval/ratio)
Mean: average (ordinal-argued, interval/ratio)

Question 2

Standard deviation

Answer 2

Average distance of scores from the mean score

Question 3

Variance

Answer 3

Measures average degree to which each data point differs from the mean

SD is square root of variance

Question 4

Range

Answer 4

Shows how dispersed responses are for a particular question