I present the results of two studies designed to explore how Expectation Violation Theory may explain biases in performance ratings. Study 1 examines how pre-hire information biases on-the-job ratings of task performance. Study 2 replicates the findings of Study 1 for on-the-job ratings of OCB performance. Results of these studies suggest that expectations violations do occur when on-the-job performance is either higher or lower than suggested by pre-hire information. However, first impressions of the employee appear to bias performance ratings of both task and OCB performance rather than expectation violations. Findings suggest applicants that make positive first impressions are rated higher on both OCB and task performance than equivalently performing co-workers who make less favorable first impressions.

This dissertation considers the entire process originated by corporate events that impact the environment and the society (ES events). Using a rich hand-collected dataset with 1139 chronological incidents originating from negative corporate social responsibility (CSR)-related events, it explores stock market reactions to each stage within a chain of successive events triggered by negative ES events, including the recurrent, follow-up (either favorable or unfavorable), as well as companies’ response events. We find that the investors respond strongly negatively to negative events (origin, negative subsequent, and negative responses) and strongly positively to positive events (positive subsequent and positive responses). We also find that investors react more negatively to the negative subsequent and recurrent events, as well as company negative responses when they occur sooner after the origin events, whereas promptness of positive subsequent events and positive responses heighten the favorable market reaction. The study also reveals the presence of expectancy violation as investors of high-CSR firm react more negatively to the negative events. In addition, it provides observations suggesting that: (1) investors do not regard positive responses as agency-motivated events, instead they are more concerned about the availability of financial resources when a firm makes remedial responses to a negative ES event; and (2) the market cares about CSR events not solely due to their financial implications, but also because it considers socially responsible operations as a value-enhancing corporate duty.

The purpose of this study was to determine whether a discrepancy existed between the premigration expectations and postmigration experiences of Hispanic immigrants with regard to their quality of life in the United States in communication, social, economic, and educational domains, and whether the discrepancy is correlated with acculturative stress. Acculturative stress refers to the stress that is related to the demands and pressure to adapt to a new culture. Indicators of acculturative stress include feelings of isolation due to inadequate social resources, apprehension at having to adapt to a new environment, angst over an inability to communicate in English, and worry over limited financial resources (Hovey, 1999). The current study analyzed data collected from a sample of 61 foreign-born individuals of Latin ancestry who came to the United States as an adult and have lived here for less than five (5) years. The findings indicate that violated expectations are correlated with acculturative stress more so than demographic variables, personality constructs and common sources of stress. Additionally, discrepancies between premigration expectations and postmigration experiences were found to be better predictors of acculturative stress than postmigration experiences alone.

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A model proposed by Holroyd and Coles (2002) stating that error related negativity (ERN) is caused by a decrease in mesencephalic dopamine output to the ACC was tested. A group of individuals with Parkinson's disease (N = 16) and an age and education matched group free from neurological disorder (N = 16) completed a card guessing task where the magnitude of monetary penalties and rewards for incorrect and correct answers was varied by block. Individuals with Parkinson's disease were tested after an overnight washout from dopamingeric medications. The amplitude of the mid-frontal negativity elicited by feedback was analyzed with spatial and temporal principal components analyses. Dipole source analyses were also performed. Analyses revealed no significant differences in the mid-frontal negativity amplitude between the two groups. In addition, the magnitude of consequence and the validity of response had no significant effects on fERN amplitude although there was a trend for higher magnitude consequences to be associated with larger fERN amplitude. Dipole analyses indicated the source of the mid-frontal negativity fell into the cingulate, specifically the cingulate gyrus. The results suggest that the mid-frontal negativity elicited by feedback indicating an error was made remains intact in individuals with Parkinson's disease. This does not support predictions made by Holroyd and Coles' model in regard to this group unless disruptions to the system that produces the fERN do not occur until later stages in the disease. An additional finding was a late positive potential for the error trials which began approximately 450 milliseconds after feedback and continued throughout the epoch. The ramifications of this wave are discussed.

Considerable evidence indicates that the expectations individuals hold about the effects of alcohol determine, to a degree, the amount of alcohol they drink. However, the bulk of this evidence was acquired using verbally-based measures of expectancy. The present study sought to extend the validation network by utilizing an electrophysiological measure -- the P300 component of the Event Related Potentials (ERPs) -- which is thought to index fundamental neurophysiological processes sensitive to expectancy.Previous research has demonstrated that, when presented with various outcomes of alcohol consumption, heavier drinkers endorse statements that assert positive and arousing effects of alcohol, while lighter drinkers endorse sedating and negative effects of alcohol. Given the sensitivity of the P300 to violation of subjective expectancies, it was hypothesized that P300 amplitude elicited by stimuli violating one's alcohol expectancies (e.g., statements describing sedating effects of alcohol for individuals with high positive expectancies) would be correlated with the participants' alcohol expectancies measured by traditional self-report measures.Participants were presented with statements reflecting a wide range of alcohol outcome effects, which either violated or confirmed the participant's own set of alcohol expectancies, while the ERPs evoked by these stimuli were recorded. As predicted, the P 300 amplitude elicited by negative alcohol expectancy stimuli was positively correlated with the degree of endorsement of positive/arousing expectancies on the self-report measure. That is, the higher the individual's positive/arousing expectancies, the larger the P300 elicited by stimuli asserting the negative effects of alcohol. There was no significant correlation, however, between P300 amplitude elicited by positive alcohol expectancy stimuli and the degree of endorsement of negative/sedating expectancies on the self-report measure.In sum, variations in the amplitude of the P300 were consistent with the model of Alcohol Expectancies: Namely, words imputing negative/sedating effects of alcohol elicited a large P300 in individuals with high but not low positive alcohol expectancies. By indexing the brain's electrophysiological response sensitive to expectancy violations, these findings demonstrate concordance between verbal measures of alcohol expectancies, which by their very nat ure are introspective, and a psychophysiological index of expectancy thought to operate automatically and to be independent of overt responding.

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This work explores the effect of social media on expectations held by nonprofit publics as they seek to build and maintain relationships with nonprofit organizations (NPOs) in the context of expectancy violation theory, social capital, and the situational theory of publics. Semi-structured interviews were conducted with 14 individuals who follow a nonprofit on social media to understand the public perspective on nonprofit organizations' relationship building and maintaining behaviors on social media. The study found that nonprofit publics do have specific expectations for how NPOs should build and maintain relationships on social media (i.e., high-quality posts, level of interaction being limited to likes on social media and interpersonal interactions, high visibility to prove legitimacy, high transparency, and posts that are positive in tone). The study also found that nonprofit publics immediately end relationships when these expectations are violated, but tolerate relationships if these expectations are met. Finally, nonprofit publics expect to build relationships by interacting in a face-to-face or interpersonal setting, but also expect to maintain these relationships on social media, shedding light onto the importance of combining the use of interpersonal and computer-mediated communication.

Title from first page of PDF document. Includes bibliographical references (p. 42-47).