Fear of crime influences people’s daily habits (Lavrakas, 1982), as well as entire communities’ feelings of safety and cohesion (Gates, 1987). Gender has been identified as the strongest and most consistent predictor of fear of crime (for a review, see Hale, 1996). The literature consistently finds that women report greater fear of crime than do men. This finding is paradoxical when compared with the concurrent finding that men experience greater criminal victimization than do women. This phenomenon is referred to as the fear victimization paradox (Rennison, 2000). At first, it was accepted that women were more afraid of crime than were men and investigators offered many different theories to explain the paradox (e.g., Fisher & Sloan, 2003, Killias & Clerici, 2000, & Sacco, 1990). However, Sutton and Farrall (2005) investigated the possibility that masculinity was creating a social desirability bias in men’s reporting of fear of crime and when they accounted for this social desirability bias, they found that men actually experienced greater fear of crime than did women. The current investigation replicated and extended this research with 1009 university students and 508 Winnipeg residents. It extended Sutton and Farrall’s study by including measures of fear of crime and social desirability that have greater validity and by testing whether the findings apply differentially to fear of sexual versus non-sexual types of criminal victimization. The influence of age, location of residence within the city of Winnipeg, history of victimization, and masculinity on fear of crime was explored. This investigation was able to replicate Sutton and Farrall’s finding, but only in the community sample. The findings from this investigation suggest that there is a shift as men leave university from actually being less afraid of crime than women to being more afraid of crime. However, despite their increased fear, men in the community seem to maintain the façade of fearlessness. It was also found that women were consistently more afraid of sexual victimization than men, regardless of the influence of social desirability. Masculinity and social desirability had similar negative relationships to fear of crime and the implications of this are discussed.

Fear of crime influences people’s daily habits (Lavrakas, 1982), as well as entire communities’ feelings of safety and cohesion (Gates, 1987). Gender has been identified as the strongest and most consistent predictor of fear of crime (for a review, see Hale, 1996). The literature consistently finds that women report greater fear of crime than do men. This finding is paradoxical when compared with the concurrent finding that men experience greater criminal victimization than do women. This phenomenon is referred to as the fear victimization paradox (Rennison, 2000). At first, it was accepted that women were more afraid of crime than were men and investigators offered many different theories to explain the paradox (e.g., Fisher & Sloan, 2003, Killias & Clerici, 2000, & Sacco, 1990). However, Sutton and Farrall (2005) investigated the possibility that masculinity was creating a social desirability bias in men’s reporting of fear of crime and when they accounted for this social desirability bias, they found that men actually experienced greater fear of crime than did women. The current investigation replicated and extended this research with 1009 university students and 508 Winnipeg residents. It extended Sutton and Farrall’s study by including measures of fear of crime and social desirability that have greater validity and by testing whether the findings apply differentially to fear of sexual versus non-sexual types of criminal victimization. The influence of age, location of residence within the city of Winnipeg, history of victimization, and masculinity on fear of crime was explored. This investigation was able to replicate Sutton and Farrall’s finding, but only in the community sample. The findings from this investigation suggest that there is a shift as men leave university from actually being less afraid of crime than women to being more afraid of crime. However, despite their increased fear, men in the community seem to maintain the façade of fearlessness. It was also found that women were consistently more afraid of sexual victimization than men, regardless of the influence of social desirability. Masculinity and social desirability had similar negative relationships to fear of crime and the implications of this are discussed.

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One hundred and forty four college subjects were divided into twelve groups on the basis of the score on a measure of need for social approval (high and low) and a measure of connotative meaning of the concept 'hippie’ (positive, negative, and neutral). By instituting two reinforcement conditions in a Taffel type of verbal conditioning task, these twelve groups of subjects were positively reinforced on a 100% reinforcement schedule, either congruently or lncongruently with their initial meaning of hippie (2 x 2 x 3 factorial design). The reinforcing stimulus was the experimenter's saying "Good" or "Fine" for a negative or positive description of hippie, depending upon the reinforcement conditions. It was hypothesized that subjects with a high need for social approval would show a greater conditioning performance than subjects with a low need for social approval. It was also hypothesized that subjects who received reinforcement congruently with their meaning of hippie would show a greater increase in the conditioning performance than subjects who received reinforcement lncongruently with their meaning of hippie. The data showed that there was no systematic difference in the conditioning performance between subjects with a high and low need for social approval as measured by the Marlowe-Crowne Social Desirability Scale. In addition, the need variable did not significantly interact either with the meaning, the reinforcement condition, or the block level of the conditioning trials. However, subjects who were reinforced congruently with their meaning of hippie showed significantly greater increase in the conditioning performance as compared to those who were reinforced incongruently with their meaning of hippie. In fact, subjects who received incongruent reinforcement failed to demonstrate any consistent changes in the rate of response emission during the conditioning period. Subjects with a neutral meaning of hippie showed a conditioning performance greater than the incongruently reinforced groups, but less than the congruently reinforced groups in both reinforcement conditions. The results were interpreted as indicating the importance of the condition under which subjects receive reinforcement—congruent or incongruent reinforcement—in determining responsivity toward socially reinforcing stimuli. / Arts, Faculty of / Psychology, Department of / Graduate

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Social desirability has been offered as an explanation for observed self-reported levels of substance use within specific populations (i.e., inpatient, court referred) and it has been identified as a possible threat to the validity of self-report prevalence studies, but it has not been tested as a variable that could be manipulated to directly affect reporting. The present study assessed the effects of a simple social desirability manipulation on self-report of substance use. Participants consisted of 389 late adolescents aged 18 to 25 who were enrolled at a large southeastern university. Results indicate that presenting a drug as socially desirable does not lead participants to report higher levels of substance use. Furthermore, participants reported that peer reports, rather than their own, were more often distorted on the present study. The results have implications for enhancing procedures for both clinicians and social scientists who survey youth about substance use.

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The multi-response optimization (MRO) problem in response surface methodology (RSM) is quite common in industry and in many other areas of science. During the optimization stage in MRO, the desirability function method, one of the most flexible and popular MRO approaches and which has been utilized in this research, is a highly nonlinear function. Therefore, we have proposed use of a genetic algorithm (GA), a global optimization tool, to help solve the MRO problem. Although a GA is a very powerful optimization tool, it has a computational efficiency problem. To deal with this problem, we have developed an improved GA by incorporating a local directional search into a GA process. In real life, practitioners usually prefer to identify all of the near-optimal solutions, or all feasible regions, for the desirability function, not just a single or several optimal solutions, because some feasible regions may be more desirable than others based on practical considerations. We have presented a procedure using our improved GA to approximately construct all feasible regions for the desirability function. This method is not limited by the number of factors in the design space. Before the optimization stage in MRO, appropriate fitted models for each response are required. The parametric approach, a traditional RSM regression technique, which is inflexible and heavily relies on the assumption of well-estimated models for the response of interests, can lead to highly biased estimates and result in miscalculating optimal solutions when the user's model is incorrectly specified. Nonparametric methods have been suggested as an alternative, yet they often result in highly variable estimates, especially for sparse data with a small sample size which are the typical properties of traditional RSM experiments. Therefore, in this research, we have proposed use of model robust regression 2 (MRR2), a semi-parametric method, which combines parametric and nonparametric methods. This combination does combine the advantages from each of the parametric and nonparametric methods and, at the same time, reduces some of the disadvantages inherent in each. / Ph. D.