Research on group identification has shown it to be a surprisingly weak predictor of intentions to take large-scale social action. The weak links may exist because researchers have not always examined identification with the type of group that is most relevant for predicting action. Our focus in two studies (one in Romania and one in Australia, both Ns ¼ 101) was on opinion-based groups (i.e. groups formed around shared opinions). We found that social identification with opinion-based groups was an excellent predictor of political behavioural intentions, particularly when items measuring identity certainty were included. The results provide clear evidence of the role of social identity constructs for predicting commitment to social action and complement analyses of politicised collective identity and crowd behaviour.

In this article, we argue that progress in the study of collective action rests on an increasingly sophisticated application of the social identity approach. We develop the view, however, that the application of this theoretical perspective has been limited by theoretical and empirical difficulties in distinguishing between social categories and psychological groups. These problems have undermined the ability of researchers to correctly specify the collective identities that actually underpin many instances of collective action. As a partial solution to this problem we focus on collective identities based on shared opinion (opinion-based groups). We develop the proposition that much collective action reflects the crystallization or instantiation of opinion-based groups. We also outline an intervention aimed at stimulating commitment to collective action through group-based interaction involving opinion-based group members. We conclude by emphasizing that opinion-based groups tend to be most successful when they present themselves as

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Learning through inquiry is a widely advocated pedagogical approach. However, there is currently little systematic knowledge about the practice of inquiry-based learning (IBL) in higher education. This study examined descriptions of learning tasks that were put forward as examples of IBL by 224 university teachers from various disciplines in three Australian universities. Data analysis uncovered the principal forms of IBL, the features of each form, their characteristic educational objectives, and possible disciplinary variations. The findings show that underlying the diversity of language and tasks regarded as IBL there is a limited number of distinct task forms and a broad conception of inquiry that is shared by university teachers. The findings also indicate that IBL is practiced in a wide range of disciplines, in both undergraduate and postgraduate coursework programs, in smaller and larger classes, and in universities which are more and less research intensive.

Whether the Australian government should officially apologize to Indigenous Australians for past wrongs is hotly debated in Australia. The predictors of support amongst non-Indigenous Australians for such an apology were examined in two studies. The first study (N=164) showed that group-based guilt was a good predictor of support for a government apology, as was the perception that non-Indigenous Australians were relatively advantaged. In the second study (N=116) it was found that group-based guilt was an excellent predictor of support for apology and was itself predicted by perceived non-Indigenous responsibility for harsh treatment of Indigenous people, and an absence of doubts about the legitimacy of group-based guilt. National identification was not a predictor of group-based guilt. The results of the two studies suggest that, just as individual emotions predict individual action tendencies, so group-based guilt predicts support for actions or decisions to be taken at the collective level.