Nuts & Bolts

Question 1

Quantitative research encompasses

Answer 1

A probability theory
Realism (Naturalism) – Views reality objectively
Two broad methods/designs
Observational
Experimental

Question 2

Observational studies

Answer 2

> . Observe the topic of interest.
. Without intervening.

Question 3

Experimental studies

Answer 3

> . Intervene or experiment.
. May compare two or more interventions; and
. Identify relationships between two or more factors.

Question 4

Correlation & correlation coefficient

Answer 4

> . Correlation is the statistical relationship between two factors
. ‘Line of best fit’ shows relationship
. Positive correlation (r > 0)
. Negative correlation (r < 0)
. No correlation (r = 0)

Question 5

Outliers

Answer 5

> . Outliers are data points that differ significantly from other observations.
. Outliers have the potential to skew results and thus may be excluded.