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1402 Uppsatser om Hypothesis tests - Sida 3 av 94
En kvantitativ studie om lärares inställning till och arbete med Nationella Prov : En enkätstudie i syfte att beskriva lärares uppfattning av huruvida NP bidrar till likvärdig bedömning och ökad måluppfyllelse i mellan ? och högstadiet.
The level of increased central government that we have experienced during the last decades in school, for the purpose of increasing equality and to adapt the Swedish school to a certain international standard, clearly shows that increased control scarcely leads to improvement.The aim of this paper is to examine whether teachers believe that national tests contribute to equivalent assessment and increased goal attainment. Furthermore the teachers? attitude towards and work with national tests is described. The paper is written from a school improvement perspective, where good examples from current research on what creates increased quality in school meaning increased goal attainment and equivalent assessment are related to research on school effectiveness and increased testing in schools. The study builds upon a quantitative survey among teachers in upper primary - and secondary school in a medium-sized municipality in Sweden.The result shows that the teachers have a somewhat more positive than negative attitude towards national tests, as a whole.
Physiological (heart rate and cortisol concentration in saliva) and behavioural responses in horses to four reactivity tests compared to the trainer's opinion about the horses? temperament
When performing studies that test the reactions of horses in different situations, important information
may be available about the horse?s reactivity level. With information from these tests, accidents and
dangerous situations may be prevented. When the behaviours from tests are compared with race performance it may be possible to evaluate if some behaviours are more desirable at the race track than others. The aim of this study was to see if behavioural responses correlated with physiological
parameters (heart rate, cortisol), the trainer?s opinions and actual race performance.
Laktester för riskbedömning av förorenad mark :
Using leaching test is a way to get a picture of pollutants retention and leaching in a risk assessment on contaminated land. There are several different types of standardised leaching tests today, where the natural leaching processes are speeded up to make it possible to predict the leaching of pollutants. These leaching tests have been developed for waste and there are no specific guidelines on how to judge the results from the tests, when making a risk assessment on contaminated land. This work is an investigation on how to use leaching test in this type of risk assessments. The strengths and weaknesses of the different types of tests are discussed.
Depending on what type of information you want from your leaching test, different types of tests are suitable.
Utdragshållfasthet av inlimmade skruvar i limträ
In this thesis tests has been performed on the pull strength of screws glued into glulam beams.The experiment is based on the already approved method whereby the diameter of the drilled holes is the same as the screw outer diameter of 1 mm or bigger. The screws strength class shall not be less than 4.6 (EN ISO 898-1:1999, 1999).The difference in the experiments that were performed where that the drilled diameter were 1 mm smaller than the outer diameter of the screw so that the screw thread was worked into the wood.In the tests the gluing where made on M8 glulam beams. The screws where drilled at and angel of 90°tangental to the fiber direction with a diameter of 7 mm. The gluing of the screws where made in three different depths and where later exposed to pulling forces. The results showed both pulling breaks and screw breaks when they reached their maximum capacity.
?Kom igen nu då, tagga till. Engelska ord och uttryck i gymnasieelevers texter ? en jämförelse
Our aim in this study is to explore if the schoolchildren?s written language differs from the?National tests? in Swedish and from Facebook. We specifically want to see if we candiscover words and expressions mainly from the English language or other languages in the?National tests? in Swedish written by the schoolchildren in the ages between 18-20 yearsold. The methods that we used to discover the results in this study was; to interview threeteachers, have 30 schoolchildren answer a questionnaire survey, analyze 30 written ?Nationaltests? in Swedish by the schoolchildren and finally analyze two Facebook walls from twoschoolchildren.
Judisk nationalism? : En idéhistorisk analys av Theodor Herzi och dennes verk Judestaten
The level of increased central government that we have experienced during the last decades in school, for the purpose of increasing equality and to adapt the Swedish school to a certain international standard, clearly shows that increased control scarcely leads to improvement.The aim of this paper is to examine whether teachers believe that national tests contribute to equivalent assessment and increased goal attainment. Furthermore the teachers? attitude towards and work with national tests is described. The paper is written from a school improvement perspective, where good examples from current research on what creates increased quality in school meaning increased goal attainment and equivalent assessment are related to research on school effectiveness and increased testing in schools. The study builds upon a quantitative survey among teachers in upper primary - and secondary school in a medium-sized municipality in Sweden.The result shows that the teachers have a somewhat more positive than negative attitude towards national tests, as a whole.
The Impact of Special Dividend and Redemption Announcements on the Swedish Stock Market
The aim with this study is to investigate the market reactions to announcements of special dividends and redemptions in Sweden and thus if these announcements can signal information. This study is an event study, where the event is the day of the announcement of a suggestion regarding issuance of special dividends or redemptions. The abnormal returns were estimated for two samples with the market adjusted returns model, one including special dividend announcing firms and the other redemption announcing firms. The signalling hypothesis and the hypothesis of a tax induced clientele effect are the most important hypotheses for this study. The efficient market hypothesis is another theoretical base that may explain the market reactions to the studied announcements, especially the pre-announcement activities that may occur.
Begåvningsnivå och psykiska problem - en undersökning av en kohort tvångsvårdade flickor och kvinnor
This study describes the intellectual ability of a cohort consisting of 120 young women in compulsory care at a SiS institution in Sweden, tested and analyzed between January 2001 and May 2005. The women have been tested with the intelligence tests WISC-III or WAIS-R, as well as the personality trait tests BCT, CMPS and SCL-90, and the personality disorder test SCID-II. This material has been analyzed to investigate how these women's intellectual ability relates to other factors. The analyses show that the main difference between the women of this study and the normal population is their level of intelligence and presence of personality disorders. The IQ level of these women is statistically proven on an average one standard deviation lower than the normal population.
Installationsgränssnitt under Linux och Windows XP utifrån ISO 9241
This thesis investigates how different Linux-distributions installation
interface relate to the ISO 9241 standard,
parts 12 and 13, and how they relate to the installation interface of Windows
XP, with the hypothesis:
"There is a Linux-distribution whose installation interface according to
applicable HCIrecommendations is equivalent to that of Windows XP."
With the checklists provided by ISO 9241 an empirical study has been made, and
so comparable measurements of how well the Linux-distributions and Windows XP
follows the
recommendations of the standard was obtained.
By comparing the results from the tests similarities and differences between
the installation interfaces can be deducted.
As the result and the conclusion shows there are Linux-distributions whose
installation interface, according to the applicable HCI-recommendations, are
equivalent to that of Windows XP..
C, C++, Java och Python : En prestandajämförelse mellan fyra programmeringsspråk
In today?s society computers are getting a much more important role. To get a computer to work as intended it has to be programmed. A computer program is written with programming languages. There is an abundance of programming languages available today and there are many differences and similarities between them.
Användartester inom webbutveckling : Är användartester nödvändigt vid utveckling av webbplatser?
The aim of this study is to get a deeper understanding about user tests as well as answer the question about if testing for users is necessary at all times. I've done a comparison between what the literature says, and what a company says, about testing. The tests that's been in focus in this study is prototyping and card sorting tests. Prototyping aims to give the developer feedback about the design and check if there are any obvious problems with the design. A card sorting test can be used to get input about how information architecture should be constructed.
Redovisning av utsläppsrätter : Sambandslöst och värdelöst?
The following essay investigates emission rights accounting. Presently there are several methods through which emission rights can be accounted for by companies. The rights can for instance be valued at fair value or nominal value and as marketable securities or intangible assets; due to a lack of consensus or clear standards companies use these or other accounting methods to value their rights. This essay investigates whether there is a relationship between the company?s choice of accounting method, the key ratio number of owned emission rights/total assets, the accounting firm used and the yearly result as a sign of earnings management.Through a quantitative study based on questioners and numbers from the annual reports three hypothesis are tested.
En studie av en industrirobots beteende vid borrning
In the assembly process of airframe structures there are many drilled holes and on some parts the holes are mainly drilled manually with pneumatic handheld drilling machines. During conventional drilling in metal, burrs appear. To remove these burrs the parts of the structure must be separated and deburred before they can be put together for fastening. This is a time consuming measure and therefore expensive. To facilitate this process and lower production costs some parts of the process needs to be automated.A part of this thesis was a project in co-operation with Saab, Novator, Specma Automation and the University of Linköping.
Installationsgränssnitt under Linux och Windows XP utifrån ISO 9241
This thesis investigates how different Linux-distributions installation interface relate to the ISO 9241 standard, parts 12 and 13, and how they relate to the installation interface of Windows XP, with the hypothesis: "There is a Linux-distribution whose installation interface according to applicable HCIrecommendations is equivalent to that of Windows XP." With the checklists provided by ISO 9241 an empirical study has been made, and so comparable measurements of how well the Linux-distributions and Windows XP follows the recommendations of the standard was obtained. By comparing the results from the tests similarities and differences between the installation interfaces can be deducted. As the result and the conclusion shows there are Linux-distributions whose installation interface, according to the applicable HCI-recommendations, are equivalent to that of Windows XP..
Kroppen är vårt ankare i världen
The purpose of this thesis is to study how preschool teachers can reach the goal of the swedish educational plan to prevent traditional gender roles for children ages 3-6 through drama in education.This is answered by four hypothesis based on Judith Butler's queer theory, George Herbert Mead's social psychological theory and Gavin Bolton and Dotothy Heathcotes drama pedagogical theories. The hypotheses are tested against four teachers' examples of their work.The hypotheses areHypothesis 1: By using the expert's mantle and active observation in teacher-in-role indrama educational exercises, we can see how the children internalize the heterosexualmatrix and the outline of the internalized other.Hypothesis 2: By using the "mistakes" that occur when children repeat performativeacts that do not fit with the heterosexual matrix, these other possible behaviors can bestrengthenedHypothesis 3: Through drama exercises that are not normative teachers can widen theheterosexual matrixHypothesis 4: Through drama pedagogical methods like teacher-in-role teachers canprovide possibilities of other performative acts and the creation of a more tolerantinternalized other.The analysis show that the respondents work within all these hypotheses in different ways and thathypotheses 2 is the one with the weakest support in the interwievs. The examples are also weakregarding the use of Boltons drama pedagogical methods, but that there are a number of othermethods in use.Some of the conclusions are that more theoretical knowledge in the preschool drama pedagogics tocounteract traditional gender roles and patterns, as well as the drama of educational theory need tobe linked to queer and social psychology research. There is also no monitoring of the long term effects of the work..