Rubrics and Student Learning Essay Example | Topics and Well Written Essays - 1000 words

Rubrics and Student Learning - Essay Example Tables 1, 2 and 3 present quantitative data on the results of a paired sample t-test applied three pairs of art projects. Two-tailed paired samples t-tests were carried out using a significance level (ï  ¡) of 0.05. In a two tailed test, it is hypothesized that two variables being considered have equal means. This hypothesis is rejected when the computed p-value, also known as the observed significance level is less than the hypothesized level of significance, which in this study is 0.05, signifying that the means are not equal and the difference between the two means are significant. The variable with the higher mean is said to have a significantly higher mean than the other variable. Table 1 presents the results of the scores of Line Project 1 and Line Project 2. Line Project 1 was undertaken with no rubrics presented to the class prior to the project, while Line Project 2 was assigned to the students after clear and explicit expectations were clarified by a scoring rubrics. In this part of the analysis, even if a statistical software was used, the scores of Student No. 17 and Student No. 23 were manually excluded from the computations, since their scores on both projects were 0. 1Simple mean was computed without the scores of Student No. 17 and Student No. 23, since both students were not able to submit both projects. When the 0 scores of both students were included, the means were lower at 75.92 and 85.69 for Line Projects 1 and 2, respectively. 2Standard deviation was also computed without the scores of Student No. 17 and Student No. 23.When the 0 scores of both students were included, the standard deviations were higher at 27.405 and 25.901 for Line Projects 1 and 2, respectively. As shown in Table 1, statistical analysis of the students’ score in Line Projects 1 and 2 revealed that the mean of the scores in Line Project 2 (92.83) is significantly higher than the mean of the

Scaling Study Essay Example | Topics and Well Written Essays - 1250 words

Scaling Study - Essay Example Likewise, personal space is apparent in a broad range of situations – even in crowded conditions where in the physical space is very limited. An example of such situation happens in trains which are always packed with passengers. In this case, people engage in certain behaviors in order to maintain their personal space given the lack of physical space. Moreover, though it is not a physical concept, it is possible to quantitatively measure personal space through the use of a dimensional scale. In an attempt to do so, a questionnaire, in the form of a verbal frequency scale, was developed that contain ten items, describing different spacing behaviors that people engage in. In order to be more specific, these behaviors were limited to those commonly exhibited in the train – being a common setting for personal space studies. For each item, five response options were provided which are coded from 1 to 5 – the highest score corresponding to â€Å"Always† and the lowest to â€Å"Never†. However, there are two different types of items made – negatively and positively stated statements, respectively – such that coding of responses was reversed for those items which are negatively stated. The total scores for all the items would be added and the average would be computed. Given this scoring, the variable, personal space, can be operationally defined as the degree to which individuals engage in different behaviors in order to prevent interpersonal relations. The assumption is that individuals who keep a large personal space are likely to engage to different spacing behaviors; hence, a high score in the test entails a large personal space. Validity Measures In order to guarantee that that the questionnaire would measure what it is supposed to measure, two types of validity were established prior to the administration of the questionnaires. First, the content validity of the questionnaire was established by creating items tha t were all based on observations made by previous researchers in their studies of personal spacing behaviors in the train. As such, previous observations found in published journals were translated into personal statements that constitute the items covered. Second, while it is not a good indication of usefulness, the face validity of the questionnaire was maintained in order to appear acceptable and relevant to the respondents. The questions were worded in a simple manner to facilitate better understanding. Also, the questionnaire was formatted to the convenience of the respondents such that they would only have to encircle their response for each item. After establishing content and face validities, the questionnaires were then administered to ten respondents who can easily be contacted by the researcher any time. In order to ensure that the respondents can relate to the questions covered, only regular train passengers were chosen to participate in the study. Consequently, the same questionnaires were again administered to the same respondents after a period of one week in order to confirm the stability of results. All responses were coded and inputted in statistical software for analysis. Based on the results, the respondents scored high in the variable that was measured. This means that people do engage in certain activities and behaviors that would protect their personal space. These findings confirm the established theories and expectations on the said topic. As such, it can be deduced that the question