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Lockwood, Nina and Sparks, Paul (2013) When is risk relevant? A psychometric study of the characteristics mountain climbers associate with eight types of climbing. Journal of Applied Social Psychology, 43 (5). pp. 992-1001. ISSN 0021-9029
Sparks, Paul, Harris, Peter R and Lockwood, Nina (2004) Predictors and predictive effects of ambivalence. British Journal of Social Psychology, 43 (3). pp. 371-383. ISSN 0144-6665
Lockwood, Nina Catherine (2011) Motivations for mountain climbing: the role of risk. Doctoral thesis (DPhil), University of Sussex.