Table 2.

Descriptive statistics for habit indices, all behaviours

	Eating unhealthy snacks		Commuting to university by public transport		Drinking alcohol		Drinking a second alcoholic drink…
Measure	Minimum–maximum	Mean (SD)	Minimum–maximum	Mean (SD)	Minimum–maximum	Mean (SD)	Minimum–maximum	Mean (SD)
SRHI-based
SRHI	1–5.42	3.36 (1.35)	1.33–6.50	3.89 (1.53)	1–4.42	2.72 (.97)	1–5.08	2.97 (1.20)
SRBAI	1–5.25	2.83 (1.42)	1.00–6.25	3.24 (1.57)	1–4.25	2.18 (1.09)	1–4.75	2.34 (1.22)
Behaviour frequency-based
Typical behaviour frequency	1–4	2.85 (.99)	1–4	3.05 (1.28)	1–4	1.90 (.85)	1–4	3.10 (1.02)
Actual past behaviour frequency	0–7	3.45 (2.11)	0–7	4.70 (1.87)	0–7	1.80 (1.91)	0–6	1.15 (1.60)
BFCS: Location*	1–12	5.35 (3.18)	1–16	9.60 (5.62)	1–12	4.15 (2.89)	1–16	7.90 (4.59)
BFCS: Time*	1–12	4.80 (2.69)	1–16	8.45 (4.44)	1–12	4.75 (2.83)	1–16	8.15 (4.34)
BFCS: People*	1–16	4.90 (3.65)	1–16	5.25 (4.51)	1–12	4.70 (2.94)	1–12	7.80 (3.33)
BFCS: Mood*	1–16	6.30 (3.73)	1–16	6.00 (4.10)	1–9	3.95 (2.42)	1–16	7.60 (4.26)

Note. SRHI = Self-Report Habit Index; SRBAI = Self-Report Behavioural Automaticity Index; BFCS = behaviour frequency × context stability.

^*BFCS scores calculated by multiplying typical behaviour frequency and cue scores. Descriptives for cues are not reported.