Air Force Assignment 1. Use appropriate descriptive statistics to summarize the training time data for each method. What similarities or differences do you observe from the sample data? Descriptive analysis in excel has been used to come up with relevant figures of the given data samples which is tabulated below: Descriptive Statistics | Current | Proposed | Mean | 75.06557 | 75.42623 | Standard Error | 0.505094 | 0.32091 | Median | 76 | 76 | Mode | 76 | 76 | Standard Deviation |
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HYPOTHESIS A hypothesis is a formal tentative statement of the expected relationship between two or more variables under study. Definition: A hypothesis is an assumption statement about the relationship between two or more variables that suggest an answer to the research question. OR Good & Hatt define hypothesis as shrewd guess or inference that is formulated and provisionally adopted to explain observed facts or conditions and
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Statistics Direct/Interview method * One of the modes of administration of survey method used for collecting primary data * This is a method of person-to-person exchange between the interviewer and the interviewee. * This method provides consistent and more precise information since clarification may be given by the interviewee. Advantages of interviews * they are useful to obtain detailed information about personal feelings‚ perceptions and opinions * they allow more detailed questions
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means by which organizations improve their chances of attaining their key operational goals. Employees‚ who know what and how much is expected of them‚ are likely to be more effective than those who are unclear about their role. It is in the light of this that organizations these days are becoming more concerned about effective performance appraisal. Performance appraisal even though‚ dates back to the Second World War‚ the challenges of appraisal system are numerous and varied. This research is focused
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Introduction Case studies are an important research method in areas where innovations are studied. They enable us to study contemporary and complex social phenomena in their natural context. Over the years researchers working from both epistemological perspectives have addressed important methodological issues. A case study is expected to capture the complexity of a single case‚ and the methodology which enables this has developed not only in the social sciences‚ such as psychology‚ sociology‚ anthropology
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its simplest form‚ refers to how the research should be undertaken (Saunders et al. 2009). In a practical way‚ it is a function of research question(s)‚ study approach‚ scale of the study‚ type of data‚ sample size and participants‚ data analyses techniques and study limitations (Johnson and Waterfield‚ 2004). Accordingly‚ this chapter is divided into nine sections. Section 3.1 explains the reasons for the choice of case study approach; section 3.2 describes the sampling strategy and choice of snowball
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Sampling methods There are 4 basic sampling methods we have learned do far: simple random sampling‚ stratified sampling‚ clusters and systematic sampling. When we do experiments we need to use the right sampling method in order to make the experiment useful and successful. First‚ simple random sampling; it gives a sample selected in a way that gives every different sample of size n an equal chance of being selected. Second‚ stratified sampling; it divides a population into subgroups and then takes
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NOTES BASED ON RESEARCH METHODOLOGY BY WELMAN‚ KRUGER AND MITCHELL‚ 3RD EDITION. THE AIMS OF RESEARCH Research is a process that involves obtaining scientific knowledge by means of various objective methods and procedures. The term objective indicates that these methods and procedures do not rely on personal feelings or opinions and that the specific methods are used at each stage of the research process. These methods include procedures for drawing samples (e.g. simple random sampling)‚ measuring
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Research is one of the most important aspects of education. Not only does it help teachers gain funding‚ but also it helps teachers help students. Research involves six steps‚ where a researcher identify a research problem‚ review the literature‚ specifies a purpose‚ develops research questions‚ collects data‚ and analyzes and interprets data. These steps are critical for researchers. Not only is it important to follow the steps of research‚ but it is allow important to know which research to choose
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Overview of Research Methods * Quantitative Research: translates the social world into numbers which can be studied mathematically * Qualitative Research: Uses non-numerical data like texts‚ interviews‚ photos and recordings to help understand social life The Scientific Approach * The Scientific Method—a procedure for acquiring knowledge that emphasizes collecting data through observation and experiment. * Most sociologists believe that they should not allow their personal beliefs
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