T-test and Correlation Statistics Project Example | Topics and Well Written Essays - 500 words

T-test and Correlation - Statistics Project Example This paper will analyze difference in the percentage usage of prepositions in writing between native and non native speaker of English in their texts. For this, 10 texts written by a native speaker of English and another 10 texts written by a non-native speaker of English (Arab writer) in the usage (percentage) of prepositions were collected (table 1). The research hypothesis is â€Å"Is there a difference in the use of prepositions in writing between native and non native speaker of English?† The null and alternate hypotheses are H0: µnative =  µnon-native H1: µnative ≠   µnon-native The selected level of significance, ÃŽ ± is 0.05. The test selected is two-tailed t-test for independent samples (Independent Samples Test) because alternate hypothesis involves not equal to sign (≠ ). The average percentage use of prepositions in writing for non-native speaker of English in their text is 38.50 (SD = 6.35). The average percentage use of prepositions in writing for native speaker of English in their text is 38.30 (SD = 4.64). From figure 1, it appears that there is no difference in the use of prepositions in writing between native and non-native speaker of English. The Levene’s test for equality of variance is not significant, F(1, 18) = 1.90, p = .19 (>.05). Therefore, equal variance can be assumed for t-test. The null hypothesis H0 is retained. Therefore, there is no difference in the use of prepositions in writing between native and non native speaker of English, t(18) = 0.08, p = .94 (>.05). Both data set (data set 1 and data set 2) shows no correlation, r(8) = .06, p = .87 (>.05). In conclusion, data suggest that there is no difference in the usage of prepositions in writing between native and non native speaker of English.

Does Type A behaviour actually exist Assignment

Does Type A behaviour actually exist - Assignment Example It has also been asserted that subjects carrying the Type A behavior are hyperactive in their daily tasks. They are more aggressive, impatient, and competitive than Type B, if assigned with complicated or difficult tasks. Actually, Type As are ambitious or over ambitious than Type B in the psychological understanding. Looking forward to the Type A behavior, which is a cause of abnormalities (high impulse, aggression, hypertension), the researchers have tried to understand this behavior in the holistic manner. Comprehensive studies have been brought to understand of how Type A behavior affects a person’s life carrying it as a condition of psychological tension. Relevant research discussed (Empirical Evidence) The contemporary literature depicts that people with Type A behavior are undergone with both mental and physical health problems. Rosenman (1975) along with continued investigators assert that Type A behavior leads to catecholamine, cholesterol and high blood pressure (Gre gory, 2004, p.515). It is the environmental challenge and demand that results in larger reactions of the Type A people. On further, the empirical studies detail that ischemic heart disease in which there is low supply of blood to heart is caused by the Type A stress behavior. The study by David (2011) claims that persons with Type A are sensitive and they are partially instable than Type B when brought to life’s challenging situations (David, 2011). The study assessed the behavior of industrial employees working in an equivalent stress environment. It found that Type A employees are more emotionally strained than Type B who are calmed and relaxed at the time of work (David, 2011). The quantitative research by Chesney and Rosenman (1981) depicted that psychological behaviors of aggression, extroversion, or high impulsiveness are associated to Type A behavior which is the cause of all such behaviors (Chesney & Rosenman, 1981). Similarly, a meta-analysis review by Hinshaw (1987) associated anxiety, anger, depression and hostility to Type A behavior respectively (Hinshaw, 1987). Friedman and Rosenman (1974) categorized the 3000 healthy men in two groups; Type A and Type B. The investigators who were the starters of the research in the continuum of Type A depicted that Type A persons are vulnerable to stress, as where Type B are more easy going and relaxed people (Plotnik & Kouyoumdjian, 2010, p.496). The investigators’ study found that out of 3000 healthy men 257 died due to stress and CHA (Coronary Heart Disease) and they were specifically from the Type A group which associated to such stress function. This research by Friedman and Rosenman became the basis of research for behavioral specialists analyzing the continuum of Type A and its effects (Meyer & Rosenman, 1974). Background linked to the aims with reasons & some detail of method The literature analyzed so far has unfolded the fact that Type A persons are vulnerable to stress. They easily get stressed when brought to life’s challenging experience i.e. a critical task or an assessment. In the behavioral research it is asserted that there is a significant difference between Type A and Type B adaptations, actions and performances. Type As are aggressive, explosive and indulgent to stress as compare to Type B who are calmed and creative to complete their task or objective. This report is an investigation on how Type A behavior