Self Report Habit Index

Verplanken and Orbell (2003) developed the Self-Report Habit Index (SRHI). The SRHI is a generic 12-item instrument, which assesses the experience of frequency and automaticity of behavior, i.e., two of the three pillars of habit. The experience of automaticity is broken down into a number of facets, i.e., the lack of awareness and conscious intent, mental efficiency, and difficulty to control (Bargh, 1994). In addition, the SRHI includes the experience of behavior being self-descriptive. The instrument is presented in Table 6.1. Verplanken and Orbell (2003) validated the SRHI in a number of studies and domains. For instance, the SRHI discriminates between repetitive behaviors that are executed weekly versus repetitive behaviors that are executed daily. Verplanken (2006, Study 3) showed that the measure discriminates between repetitive behavior that is executed in an automatic versus deliberative fashion (e.g., when behavior is easy versus difficult).

Table 6.1 The Self-Report Habit Index (Verplanken and Orbell, 2003)_

Behavior X is something

1. I do frequently.

2. I do automatically.

3. I do without having to consciously remember.

4. That makes me feel weird if I do not do it.

5. I do without thinking.

6. That would require effort not to do it.

7. That belongs to my (daily, weekly, monthly) routine.

8. I start doing before I realize I am doing it.

9. I would find hard not to do.

10. I have no need to think about doing.

11. That is typically "me."

12. I have been doing for a long time.

Note: Five- or seven-point response scales anchored with "strongly disagree" and "strongly agree" may be used. From Verplanken and Orbell (2003, p. 1329). Copyright 2003 by John Wiley & Sons. Permission for reproduction should be sought.

To date the SRHI has been successfully used in a large variety of domains, such as food or snack consumption (Brug et al, 2006; Conner et al, 2007; de Bruijn et al, 2007; Honkanen et al, 2005; Verplanken et al, 2005), consumption of beverages (Kremers et al, 2007), food safety practices (Hinsz et al, 2007), physical activity (Chatzisarantis and Hagger, 2007; Verplanken and Melkevik, 2008), weight loss (Lally, 2007), Internet use (Lintvedt et al, 2008), and social behavior (Verplanken, 2004). The

12 items usually show high internal reliabilities (> 0.90), and satisfactory test-retest reliabilities of 0.71 over 1 week for unhealthy snack-ing (e.g., Verplanken, 2006) and 0.87 over 1 month for exercising (Verplanken and Melkevik, 2008) have been obtained. Importantly, Conner et al (2007) showed that the SRHI moderated the relationships between implicit measures of attitude and behavior, while no moderation was found in the relationship between explicit measures and behavior. These results validate the relationship between the SRHI and automaticity.

0 0

Post a comment