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Master of Social Work / This research is about evidence based practice, which is an area of increasing interest and emphasis in social work today. Initially apparent in medical and health care settings, evidence based practice now has widened applicability to a broad range of contexts and professional disciplines. The ways in which research evidence is translated into policy and practice is itself a topic area for social work research. The study investigates evidence based practice in child welfare, specifically the out-of-home care system. Out-of-home care provides alternative placements for children and young people who cannot live with their families because of abuse and neglect, and generally consists of placement with foster carers or in a residential/group care setting. This research is an exploratory study which investigates through individual interview how nineteen out-of-home care Senior Managers and Team Leaders in the states of New South Wales, Western Australia and the Australian Capital Territory interpret and understand evidence based practice, and the degree and depth of knowledge they transfer from research awareness into out-of-home care practice and policy development. The research has three main objectives. Firstly to investigate the understanding of out-of-home care managers of evidence based practice, secondly to determine the influence of relevant research on practice and policy in out-ofhome care, and thirdly to explore potential barriers to evidence based practice. Looking After Children, a social work case management system for children and young people in out-of-home care, provides the context for this research, in which evidence based practice is critically examined. A thematic analysis of the interview data identified five major themes. These included: the benefit of broadening definitions of evidence based practice to include a wide range of influences on practice; the value and importance of 2 considering a broad range of research approaches in connecting research with policy and practice AND the potential for influencing outcomes of social work intervention via research based and influenced guided practice systems and techniques; factors which constitute barriers and also those that enhance the implementation of evidence based practice; the potential for instigating and supporting new research via the use of evidence based practice for purposes such as data aggregation, in addition to practice development and enhancement of client outcomes. Implications and conclusions are drawn from this study in relation to out-ofhome care policy and practice, with particular reference to use of the Looking After Children case management system in the Australian context. These include the potential of a consistent system such as LAC to provide common language and assessment tools and procedures in a welfare sector that is fragmented by lack of national legislation, and the potential for development of national out-of-home care research projects as a result of cross agency LAC implementation resulting in data aggregation opportunities.

Thesis (M.A. (History of Arts))--North-West University, Potchefstroom Campus, 2008.

This thesis aims to study how infants actively look at different social figures: parents and strangers. To study infants’ looking behavior in “live” situations, new methods to record looking behavior were tested. Study 1 developed a method to record looking behavior in “live” situations: a head-mounted camera. This method was calibrated for a number of angles and then used to measure how infants look at faces and objects in two “live” situations, a conversation and a joint action. High reliability was found for the head-mounted camera in horizontal positions and the possibility of using it in a number of “live” situations with infants from 6 to 14 months of age. In Study 2, the head-mounted camera and a static camera and were used in a “live” ambiguous situation to study infants’ preferences to refer to and to use the information from parents and strangers. The results from Experiment 1 of Study 2 showed that if no information is provided in ambiguous situations in the lab, infants at 10 months of age look more at the experimenter than at the parent. Further, Experiment 2 of Study 2 showed that the infants also used more of the emotional information provided by the experimenter than by the parent to regulate their behavior.  In Study 3, looking behavior was analyzed in detail when infants looked at pictures of their parents’ and strangers’ emotional facial expressions. Corneal eye tracking was used to record looking. In this study, the influence of identity, gender, emotional expressions and parental leave on looking behavior was analyzed. The results indicated that identity and experience of looking at others influences how infants discriminate emotions in pictures of facial expressions. Fourteen-month-old infants who had been with both parents in parental leave discriminated more emotional expressions in strangers than infants who only had one parent on leave. Further, they reacted with larger pupil dilation toward the parent who was actually in parental leave than to the parent not on leave. Finally, fearful emotional expressions were more broadly scanned than neutral or happy facial expressions. The results of these studies indicate that infants discriminate between mothers’, fathers’ and strangers’ emotional facial expressions and use the other people’s expressions to regulate their behavior. In addition, a new method, a head-mounted camera was shown to capture infants’ looking behavior in “live” situations.

The purpose of this study is to investigate how different incentive contracts that include forward-looking and contemporaneous goals motivate managers to make decisions consistent with the organization’s long-term objectives, in tasks of varying complexity. Two research questions are addressed. First, in a long-term horizon setting, how do incentive contracts based on various combinations of forward-looking and contemporaneous measures influence decisions? Second, how does task complexity influence the expected effect of various incentive contracts on management decisions? I address my research questions using a multi-period experiment where I compare the effects of three different incentive structure types and two different levels of task complexity. Results show that in a low complexity task, individuals perform better when only contemporaneous goal attainment is rewarded in the incentive contract than when both forward-looking and contemporaneous goal attainment is rewarded. In a high complexity task, individuals perform better when both contemporaneous and forward-looking goal attainment is rewarded, but only when the contemporaneous goal attainment is weighted more heavily in the incentive contract. My research contributes to the existing literature in two ways. First, this is the first study of which I am aware that compares the performance effects of long-term incentive contracts that reward forward-looking and contemporaneous goal attainment. Second, this study is the first of which I am aware to experimentally test incentive contracts, for employees with a long-term horizon, that incorporate various weightings of forward-looking measures in the contract. In addition, this study will be amongst the first to examine the impact of task complexity on incentive contract effectiveness.

The purpose of this study is to investigate how different incentive contracts that include forward-looking and contemporaneous goals motivate managers to make decisions consistent with the organization’s long-term objectives, in tasks of varying complexity. Two research questions are addressed. First, in a long-term horizon setting, how do incentive contracts based on various combinations of forward-looking and contemporaneous measures influence decisions? Second, how does task complexity influence the expected effect of various incentive contracts on management decisions? I address my research questions using a multi-period experiment where I compare the effects of three different incentive structure types and two different levels of task complexity. Results show that in a low complexity task, individuals perform better when only contemporaneous goal attainment is rewarded in the incentive contract than when both forward-looking and contemporaneous goal attainment is rewarded. In a high complexity task, individuals perform better when both contemporaneous and forward-looking goal attainment is rewarded, but only when the contemporaneous goal attainment is weighted more heavily in the incentive contract. My research contributes to the existing literature in two ways. First, this is the first study of which I am aware that compares the performance effects of long-term incentive contracts that reward forward-looking and contemporaneous goal attainment. Second, this study is the first of which I am aware to experimentally test incentive contracts, for employees with a long-term horizon, that incorporate various weightings of forward-looking measures in the contract. In addition, this study will be amongst the first to examine the impact of task complexity on incentive contract effectiveness.

The recent financial and economic turmoil driven by housing market has led the economists to refocus on the issue about monetary policy and asset price, especially housing price. In this dissertation I investigate the various relationships between monetary policy and asset prices in U.S. economy through steady state Bayesian VAR (SS BVAR) and revised Taylor-typed interest rate rule (Forward-looking rule) based on Generalized Method of Moments (GMM) methodology. In chapter II, steady state Bayesian VAR (SS BVAR) methodology is introduced and multi step-ahead forecasts are executed. Upon usual squared error loss methodology the forecasting performances of SS BVAR are evaluated in comparison with standard BVAR and conventional VAR. Equal predictive ability tests following Giacomini and White (2006) verify that the SS BVAR is superior in forecasting power especially in long-horizons. In chapter III, identification issue involving housing sector is explored through two different ways: economic theory-based approach and algorithms of inductive causations. Despite the different approaches the housing sector’s specifications are somewhat similar. Impulse response analyses demonstrate that monetary shock to housing price is relatively smaller, less significant, and less lasting when compared to Choleski identification. Also historical decomposition and conditional forecast analyses indicate that the housing price shock itself is crucial in accounting the sharp increase and sudden drop of housing price since 2003. Upon the estimated evidences I conjecture that there are much uncertainty between monetary policy and housing price, recalling the consideration of institutional factors when trying to accounting housing sectors. In chapter IV, following Dupor and Conley (2004), I explore how Fed responds to stock price and inflation movements differently across high and low inflation sub-periods. Replicated linear estimation results of Dupor and Conley (2004)’s indicate that Fed raises its target interest rate responding to stock price gap with statistical significance. Linear estimation results, however, are not robust to small change of chosen breakpoint especially in inflation coefficient. So I construct nonlinear model as an alternative way to relax this problem and carry out test of structural change with the nonlinear framework. Consequently both nonlinearity and structural change matter in explanation of Fed’s behavior in this type of reaction function analysis. Given structural change, inflation coefficients movement shows that Fed has responded to expected inflation pressure nonlinearly across sub-period, while stock price gap coefficient shows explicit break around early ’90 in line with Dupor and Conley (2004)’s finding.

One unresolved issue in early word learning research is the relationship between word learning, categorization, and attention. Two distinct cognitive processes, attentional preferences related to categorical processing and inter-modal matching are involved in this relationship. Keeping the effects of these processes separate and controlled can be a difficult task. Not doing so can potentially confound the interpretation of research in this area. In a series of four preferential looking studies, the effects of referential assignment and novelty seeking in infancy were teased apart. In Study 1, 13-month olds preferred to look toward a monitor on which the stimuli changed category on every trial, and away from a monitor on which the stimuli were drawn from a single category. This preference developed in conditions in which infants listened to labels, non-language sound, or participated in silence. In Study 2, 18-month-olds developed the same preference when listening to non-language sounds or when participating in silence, but developed no preference when listening to labels. Results of studies 3 and 4 suggest that the lack of preference by 18-month-olds in the label condition result from competing behaviors of novelty seeking and referential assignment. / text

Elk (Cervus elaphus) in eastern Kentucky appear to have increased in number since reintroduction in 1997, but rugged landscapes and cryptic elk behavior have precluded use of typical population survey methods to accurately estimate population size. In December 2006, I used forward-looking infrared radiography (FLIR) to survey the elk population in eastern Kentucky. Elk locations identified by FLIR were used to create a landscape based model to estimate the density distribution of elk within a 7,088 km2 core area of the elk restoration zone. FLIR detected 76% of elk groups of < 10 individuals and 100% of elk groups of ≥ 10 individuals. The density of elk was positively associated with the amount of herbaceous area, herbaceous edge, herbaceous area weighted mean patch fractal dimensions, proximity to release sites, the number of elk released at each site and urban core area index, and negatively associated with road density. My model estimated the elk population at 7,001 (SE = 772, 95% CI = 5,488- 8,514) individuals within the core area, 53% of which were < 10 km from release sites. The predicted elk distribution pattern and abundance estimate derived from this model will be important for wildlife managers in successfully managing the Kentucky elk population.

In this dissertation two art works of two female artists, Cindy Sherman and Berni Searle, are analysed comparatively using a method developed in semiotics. The artworks of Sherman that are used in this dissertation forms part of her Untitled Film Stills series and the artworks of Searle that are discussed forms part of her Looking Back series. The artworks and artists are contextualised within the postmodernism and within the realm of performance art. The study focuses on and discusses the way in which these two artists depict identity in their artworks. In Sherman's artworks this identity is linked to a Western, white identity. In contrast with this, the identity that Searle depicts is linked to an African, coloured identity. The study is concluded by a comparative summary of the different identities Sherman and Searle represent in their artworks as well as the way in which they represent these identities. / Thesis (M.A. (History of Arts))--North-West University, Potchefstroom Campus, 2008.