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Of great importance is the length scale. Although strict limits are difficult to deduce here, but you can, however, show some peculiarities of perception of those or other scales. In life we often operate on a three-point scale. "Do You like my new suit?" - we ask from a friend, and, as a rule, response easily fits in a graduation: "liked", "not very much", "not liked". Sometimes added two extreme positions "very much" or "liked". And only a specialist designer can result in more fractional gradation.The use of a scale is primarily substantive rather than merely formal significance. In other words, the richer the content of a phenomenon, the thinner should be the scale, the more grades it should be. For example, many art competitions and sports competitions are valued fairly long scale containing more than ten units of degrees and even tenths. And school under the existing five-point system of assessments teachers are actually using the eight-ten system, introducing "illegal" to estimate the pros and cons and thereby increasing the total number of points. This requires a fairly accurate assessment of pupils ' knowledge, not only knowledge but also behavior, diligence, etc.You also need to consider how a particular Respondent is able to perceive the multidimensional scale. Perception depends on its General culture and level of education, and the ability to think analytically, and the degree of awareness, sensitivity, etc. for Example, a work quite clearly can determine how to spent his salary even at stoballnoy system, but try to ask him to assess the level of their own mental or psychological stress at work, and he is unlikely to overpower a ten-point scale. In the question "please Tell me how You get tired at work?" - it is better to offer a five-point scale: "very tired"; "tired, but not much"; "a little tired"; "little tired"; "not tired". To present more points for the assessment of fatigue - so to essentially distorted data.In very fractional scale when a Respondent cannot sufficiently thin to evaluate some phenomenon or to define a relationship, there is a coarsening of the proposed scale. For example, a scale for the study of friendly relations in the team the difference between ninth and tenth positions are rarely perceived by respondents as significant as the difference between the first and second. Often the Respondent shared circle encircles both the first and second or ninth and tenth, thus showing that he did not see much difference between them. When coarsening the Respondent safely driving a ten-point scale to five-point. You must take into account the fact that the respondents psychologically try to avoid extreme positions and their responses focus somewhere in the middle.When building scales need a lot of preparatory and, one might say, research to determine:1. How thinly you want to evaluate a particular event, relationship, or process - perhaps the researcher and does not require too much precision. It is necessary to remember that social data is not quantitative expression of the processes or the level of relations and the quality of the identification of some General trends.2. How substantial is this phenomenon, to explore it by a fractional scale. How well-founded the essence of the phenomenon under study, the use of very long scales. Not every phenomenon, so meaningful, in order for his research to build a special scale. The study of relationships in the group, determining the frequency of attending lectures or movie theaters require different gradations in developing scales.3. Whether the Respondent to perceive the multidimensional scale? As far as he is susceptible to this phenomenon, how informed is it of interest to the Respondent, what is the threshold sensitivity? etc.Without this preparatory work the application of any scales in the questionnaire does not make sense.
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