Indoor Tanning within UK Young Adults: An Extended Theory of Planned Behaviour Approach

Table 2

Reliability analysis of the multiitem measures by sample group.

Factors (items)	Whole sample at T1	T	NT
TPB (alpha/lambda 2)
PBC	.386/.409	.250/.299	.492/.526
Attitude	.893/.897	.887/.892	.859/.866
SN	.764/.764	.752/.752	.667/.667
Additional constructs
Appearance reasons to tan	.983/.983	.976/.976	.972/.973
Perceived susceptibility to:
Damaging appearance	.924/.929	.916/.921	.940/.945
Health consequence	.951/.952	.947/.948	.964/.964
Tanning knowledge	.485/.509	.393/.437	.608/.629