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Social cognition models
Page 197 Black blue SEX 197 studies suggest that unprotected anal sex is resurfacing as an increasing problem. This suggests that the substantial increase in condom use which occurred after the initial AIDS prevention efforts may be beginning to reverse. Condom use is recommended as the main means to prevent the spread of the HIV virus. These data suggest that many individuals do report using condoms, although not always on a regular basis. In addition, many individuals say that they do not use condoms. Therefore, although the health promotion messages may be reaching many individuals, many others are not complying with their recommendations. Predicting condom use Simple models using knowledge only have been used to examine condom use. However, these models ignore the individual’s beliefs and assume that simply increasing knowledge about HIV will promote safe sex. In order to incorporate an individual’s cognitive state, social cognition models have been applied to condom use in the context of HIV and AIDS (see Chapter 2 for a discussion of these models). These models are similar to those used to predict other health-related behaviours, including contraceptive use for pregnancy avoidance, and illustrate varying attempts to understand cognitions in the context of the relationship and the broader social context. Social cognition models The health belief model (HBM) The HBM was developed by Rosenstock and Becher (e.g. Rosenstock 1966; Becker and Rosenstock 1987) (see Chapter 2) and has been used to predict condom use. McCusker et al. (1989) adapted the HBM to predict condom use in homosexual men over a 12month period. They reported that the components of the model were not good predictors and only perceived susceptibility was related to condom use. In addition, they reported that the best predictor was previous risk behaviour. This suggests that condom use is a habitual behaviour and that placing current condom use into the context of time and habits may be the way to assess this behaviour. The reasons why the HBM fails to predict condom use have been examined by Abraham and Sheeran (1994). They suggest the following explanations: I Consensus of severity: everyone knows that HIV is a very serious disease. This presents the problem of a ceiling effect with only small differences in ratings of this variable. I Failure to acknowledge personal susceptibility: although people appear to know about HIV, its causes and how it is transmitted, feelings of immunity and low susceptibility (‘it won’t happen to me’) are extremely common. This presents the problem of a floor effect with little individual variability. Therefore, these two central components of the HBM are unlikely to distinguish between condom users and non-users. I Safer sex requires long-term maintenance of behaviour: the HBM may be a good predictor of short-term changes in behaviour (e.g. taking up an exercise class, stopping Page 197 Black blue Page 198 Black blue 198 HEALTH PSYCHOLOGY smoking in the short term), but safer sex is an ongoing behaviour, which requires an ongoing determination to adopt condom use as a habit. I Sex is emotional and involves a level of high arousal: these factors may make the rational information processing approach of the HBM redundant. I Sex is interactive and involves negotiation: condom use takes place between two people, it involves a process of negotiation and occurs within the context of a relationship. Assessing individual cognitions does not access this negotiation process. Abraham and Sheeran (1993) suggest that social skills may be better predictors of safe sex. I From beliefs to behaviour: the HBM does not clarify how beliefs (e.g. ‘I feel at risk’) are translated into behaviour (e.g. ‘I am using a condom’). The theory of reasoned action (TRA) and the theory of planned behaviour (TPB) In an attempt to resolve some of the problems with the HBM, the TRA and TPB have been used to predict condom use. These models address the problem of how beliefs are turned into action using the ‘behavioural intentions’ component. In addition, they attempt to address the problem of placing beliefs within a context by an emphasis on social cognitions (the normative beliefs component). Research suggests that the TRA has had some degree of success at predicting condom use with behavioural intentions predicting condom use at one, three and four months (Fisher 1984; Boyd and Wandersman 1991; van der Velde et al. 1992). In addition, attitudes to condoms predict behavioural intentions (Boldero et al. 1992), and perceived partner support (partner norms) appears to be a good predictor of condom use by women (Weisman et al. 1991). Research has also explored the relative usefulness of the TRA compared with the TPB at predicting intentions to use condoms (Sutton et al. 1999). The results from this study indicated that the TPB was not more effective than the TRA (in contrast to the authors’ predictions) and that past behaviour was the most powerful predictor. In a recent study of condom use, the best predictors appeared to be a combination of normative beliefs involving peers, friends, siblings, previous partners, parents and the general public. This suggests that although cognitions may play a role in predicting condom use, this essentially interactive behaviour is probably best understood within the context of both the relationship and the broader social world, highlighting the important role of social cognitions in the form of normative beliefs. Therefore, although TRA and TPB, address some of the problems with the HBM, they still do not address some of the others. The role of self-efficacy The concept of self-efficacy (Bandura 1977) has been incorporated into many models of behaviour. In terms of condom use, self-efficacy can refer to factors such as confidence in buying condoms, confidence in using condoms or confidence in suggesting that condoms are used. Research has highlighted an association between perceived self-efficacy and reported condom use (Richard and van der Pligt 1991), and a denial of HIV risk during the contemplation of sex (Abraham et al. 1994). Schwarzer (1992) developed the health Page 198 Black blue Page 199 Black blue SEX 199 action process approach (HAPA, see Chapter 2), which places self-efficacy in a central role for predicting behaviour. In addition, this model may be particularly relevant to condom use as it emphasizes time and habit. Problems with social cognition models Many of the problems highlighted by the HBM are also characteristic of other social cognition models (see Chapter 2 for a detailed discussion). These problems can be summarized as follows: 1 Inconsistent findings. The research examining condom use has not produced consistent results. For example, whereas Fisher (1984) reported an association between intentions and actual behaviour, Abraham et al. (1991) did not. Joseph et al. (1987) suggested that condom use is predicted by peer norms, whereas Catania et al. (1989) found that it is not. Furthermore, Catania et al. (1989) reported that condom use relates to perceived severity and self-efficacy, but Hingson et al. (1990) said that it does not relate to these factors. However, such studies have used very different populations (homosexual, heterosexual, adolescents, adults). Perhaps models of condom use should be constructed to fit the cognitive sets of different populations; attempts to develop one model for everyone may ignore the multitude of different cognitions held by different individuals within different groups. 2 Sex as a result of individual cognitions. Models that emphasize cognitions and information processing intrinsically regard behaviour as the result of information processing – an individualistic approach to behaviour. In particular, early models tended to focus on representations of an individual’s risks without taking into account their interactions with the outside world. Furthermore, models such as the HBM emphasized this process as rational. However, recent social cognition models have attempted to remedy this situation by emphasizing cognitions about the individual’s social world (the normative beliefs) and by including elements of emotion (the behaviour becomes less rational). 3 Perception of susceptibility. In addition, these models predict that because people appear to know that HIV is an extremely serious disease, and they know how it is transmitted, they will feel vulnerable (e.g. ‘HIV is transmitted by unprotected sex, I have unprotected sex, therefore I am at risk from HIV’). This does not appear to be the case. Furthermore, the models predict that high levels of susceptibility will relate to less risk-taking behaviour (e.g. ‘I am at risk, therefore I will use condoms’). Again this association is problematic. 4 Sex as an interaction between individuals – the relationship context. Models of condom use focus on cognitions. In attempts to include an analysis of the place of this behaviour (the relationship), variables such as peer norms, partner norms and partner support have been added. However, these variables are still accessed by asking one individual about their beliefs about the relationship. Perhaps this is still only accessing a cognition not the interaction. 5 Sex in a social context. Sex also takes place within a broader social context, involving norms about sexual practices, gender roles and stereotypes, the role of Page 199 Black blue