The topics of motivation and job satisfaction have been of interest to researchers over the past decades. Many researchers and practitioners have studied the driving factors to motivate staff in the workplace, but no specific findings have shown correlation between motivation and job satisfaction. Problems of motivation and job satisfaction have continued to plague many developing countries like Malaysia. This study is an attempt to improve the understanding of the human contribution to variability in manufacturing industries and the focus areas are work motivation, satisfaction and performance as well as relationships with learning behaviours of employees in the workplace. The research work can be categorized into three parts. The first part consists of pilot study which was conducted to determine the practicality and validity of method/instruments used in the research. The pilot study also helped to correct the flaws/weaknesses of the method before employing it in the full-scale research study. Secondly, an experimental study was carried out to identify the motivation, satisfaction, performance and learning behaviour of unskilled and skilled employees doing simple or complex tasks individually or in group. The final part was an industrial study conducted with 356 employees from various positions and backgrounds in selected manufacturing industries in Malaysia. Based on the findings, it has been shown that unskilled employees preferred doing complex tasks in a group rather than doing simple tasks and skilled employees preferred doing complex tasks individually rather than in a group. It increased their work motivation, satisfaction and performance. It was found that task identity (simple tasks) and learning behaviours (individual learning of unskilled employees) can be the reason for employees to leave in the future. The task identity (task complexity) can be an important factor in job design in organisations and it is significant in the learning process of unskilled and skilled employees in manufacturing industries, particularly in Malaysia. It was also found that learning in a team (group) appears to be a very significant factor in workplace learning for both unskilled and skilled employees. The study has shown that there are relationships between motivational and learning behaviours of skilled and unskilled employees and this knowledge is expected to be useful for employers and policy makers in organisations especially in manufacturing industries in Malaysia.

The purpose of the present thesis was two-fold. First, to evaluate the impact of cognitive demand on postural control in young adults and second, to examine the responsiveness of postural control to cognitive tasks presented in varying modalities. Seventeen young adults stood on a force platform while simultaneously performing cognitive tasks of varying difficulty (easy, moderate and difficult), each presented auditorily and visually. Performing the moderate and difficult tasks precipitated a greater reduction in area of 95% confidence ellipse and medio-lateral (ML) sway variability compared to the easy tasks. Presenting the tasks visually produced lower ML sway variability than presenting the tasks auditorily. Of secondary interest of this thesis was to determine if the duration of inter-stimulus intervals could modify the effectiveness of a cognitive task on postural control. Participants stood on a force platform while simultaneously performing cognitive tasks with five-second inter-stimulus intervals (i.e. discrete) and two-second inter-stimulus intervals (i.e. continuous), each presented auditorily and visually. Results revealed higher anterior-posterior (AP) mean power frequency (MPF) when performing the continuous tasks. In addition, presented the tasks visually resulted in a greater reduction in area of 95% confidence ellipse, AP and ML sway variability.

The objective of the present study was to; 1) determine if the use of a continuous cognitive task demonstrates distinct characteristics of a more automatic control of posture, compared to an external focus (EF) and feet together (FT) postural task, and to 2) examine which condition, if any, exhibits the characteristics of increased ankle stiffness proposed by Winter et al. (1998), as well as displaying increased ankle muscular co-contractions, which are a suggested neuromuscular mechanism that stiffens posture. Fifteen young adults stood on a force platform and performed 4 separate conditions: FT, EF, single number sequence (SNS), and double number sequence (DNS). Throughout the session, surface electromyography (EMG) signals were collected from the tibialis anterior (TA) and medial gastrocnemius (MG) of each leg. Each testing session consisted of 24 trials, with 6 per condition. Results displayed decreased sway area for SNS and DNS compared to FT. Sway variability in the anterior/posterior (AP) direction SNS and DNS were smaller compared to EF and FT. As well sway variability in the medial/lateral (ML) direction was smaller for SNS and DNS compared to FT. ML Mean velocity (MV) did not differ across conditions, though in the AP direction it was larger for SNS and DNS compared to EF and FT. AP Mean power frequency (MPF) was larger for SNS compared to FT. In the ML direction MPF was larger for SNS and DNS compared to FT. Co-Contraction indices revealed no differences across conditions. Conversely the left TA for DNS revealed increased EMG activation compared to EF and SNS.

For over two decades, studies on task planning and its role in second language learners' oral performance have shown that the opportunity to plan for a task generally improves learners' speech (Ellis, 2005). It has been hypothesized that the opportunity to plan for a task reduces cognitive load during language processing, thus allowing learners to attend to various aspects of language, and that this enhanced attention, in turn, results in more successful task performance. However, one limitation to this task planning research to date it that most studies have examined the effects of planning before task performance, while largely ignoring the effects of planning that occur during task performance (Yuan & Ellis, 2003). Another limitation in planning research is that findings have been based exclusively on external observation and measurement of learners' oral production; we know little about what strategies learners use that may result in higher-quality speech. The participants in this study were intermediate and high-intermediate learners of Japanese. They were divided into experimental groups and performed a narrative task under different task conditions. Participants received a set of pictures and were asked to retell the story in Japanese. To examine the effects of planning on task performance, fluency, complexity, and accuracy in the participants' speech were analyzed. For the analysis of planning strategies, retrospective interviews were given to a group of participants from each planning group immediately after the task performance. The results revealed that there were no significant differences in participants' oral production across planning conditions, except in the area of lexical complexity (participants without a pre-task planning opportunity produced narrative stories with a greater variety of vocabulary than those who planned before the task). A trade-off effect between lexical complexity and accuracy was found when participants planned either before or during the task. Another trade-off effect was found between lexical complexity and fluency for the participants with on-line planning only. The analyses of strategy use showed that second language learners generally selected similar strategies regardless of planning conditions. These results provided important pedagogical implications and suggested useful future research directions.

Research has shown that self-monitoring can be effective in different settings and with a range of students as well as problem behaviors. However, teachers who use self-monitoring techniques have difficulties in using an effective cueing system as well as generalizing the newly acquired skill into the general education classroom. This study extends the literature by utilizing a tactile cueing device to increase the percentage of intervals of on-task behavior as well as increasing the intervals of on-task behavior in an inclusive general education classroom setting.

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