In Their Study of 'Using Individual Growth Model to Analyse

Multiple Choice

In their study of 'Using individual growth model to analyse the change in quality of life from adolescence to adulthood', Chen and Cohen (2006) conducted interviews on three different occasions over a period of time, and the following graph demonstrates the physical health changes noted over these three periods in 20 of their sample. Individual Physical Health Change (raw data, n = 20)
What does the graph illustrate?

A) No evidence of variability in physical health scores.
B) Small inter-individual variability in physical health scores.
C) Large inter-individual variability in physical health scores.
D) None of the above.