Population And Sample Selection - 854 Words

POPULATION AND SAMPLE SELECTION This chapter will present the data gathered about an elementary school’s teacher current perspectives, practices and strategies regarding technology usage within their pedagogy. Pseudonyms will be used for all locations and participants. To distinguish the position of each participant, the will be given a specific number (i.e. – Teacher 1, Teacher 2, etc.). First, the school as it exists at the study site will be described. Then, demographics of the site will be presented, followed by demographics of the participants. The chapter will conclude with issues and concerns about the kindergarten teacher comfort levels with technology. Additionally, it will connect whether or not do professional development opportunities change kindergarten teacher attitudes regarding technology, increase knowledge of devices and ensure proper integration practices. Demographics of the Site Nashville is a large metropolitan area that is located in the heart of the state of Tennessee. It is centrally located and connected to many smaller cities, which are areas that are experiencing significant urban growth. Although the population of the city is approximately 644,014, the population of the entire state is approximately 6,549,352. The Volunteer Independent School District or VISD, is a school district that serves the city of Nashville, Tennessee. More than 82,000 students are currently enrolled in the district s 73 elementary schools, 33 middle schools, 25 highShow MoreRelatedResearch Techniques Including Research Design1136 Words   |  5 PagesIntroduction A sample is a set of data drawn from the population, it is considered as a subset. Populations are defined as the set of all items or individuals of interest. Samples are less time consuming than a census, less costly to administer than a census and it is possible to obtain statistical results of a sufficiently high precision based on samples. There are two types of sampling techniques, probability and non-probability sampling. Probability Sampling A probability sampling method isRead MoreCorrelation Between Sampling, Sampling Risk And Nonsampling Risk1446 Words   |  6 PagesSampling means take one typical part of from the whole population, which is an essential method for corporations to get the result of their new products or policies. When corporations test the sample, they do not actually need the specific data and number. In addition, the total number of comprising the population is usually large, so the corporations usually do not test the whole population for reducing meaningless time and labor cost. Sampling is a good way to trade effectiveness to efficiencyRead MoreBusiness Essay examples995 Words   |  4 Pagesthere are a large number of samples. The idea here is that each student in the class will create 20 samples for two populations, using two different sampling procedures, for a total of 80 samples. These samples will be combined into common datasets which will be used in class (and made available to all s tudents in the class. The four sampling contexts will be: 1. Discrete numerical population, sampling without replacement (DNWITHOUT) 2. Discrete numerical population, sampling with replacementRead MoreAnalysis : Post Stratification Sampling1075 Words   |  5 Pagesrandom sample method is used to improve the efficiency. It can be used to implement weighting and it improve the precision of a sample estimates. It is a calibration estimation method that is often used to reduce the variance of the estimates. The selected sampled units are classified into groups and the known total number of units in the population is used to estimate the group total for some variable of interest. The group totals are summed to produce an estimate for the whole population. The groupsRead MoreAnalyzing Different Approaches Of Sampling885 Words   |  4 Pagesportion of the population that is being studied to represent the attributes of the entire populations ( Polit Beck, 2014). The different strategies of sampling includes: 1. Probability sampling is typically used in quantitative research studies (Polit Beck, 2014). It involves a specific analytical process that requires the random selection of attributes from a population that is being studied, which establishes that there is an equal likelihood of each attribute in the population(Polit BeckRead MoreTraditional Techniques For Sampling And Estimating Population Characteristics1378 Words   |  6 Pagessampling and estimating population characteristics require that sample selection is done with a known probability. However, for a hard to reach population this is impossible. There is no list or registry from which to create a sampling frame or if there is a list, a random sampling can yield low number of eligible respondents since it’s often non-representative of the intended target population.1 In addition, it can be extremely difficult to locate members of this population due to social stigmas particularlyRead MoreEnglish Chinese Dictionary Is What I Use For This Assignment1105 Words   |  5 Pagessampling: †¢ Record the total number of the vocabulary in the dictionary to be N †¢ Choose sample size n which is the number we use in this survey †¢ Open the dictionary randomly, not first 10 page and not the last 10 page, since those pages in most cases are not typical †¢ Close your eyes and point to a vocabulary , then test yourself whether you know this vocabulary or not †¢ Repeat the pervious step until the desired sample size is reached †¢ Record the number of vocabulary you know k †¢ Estimate the numberRead MoreQuestions On The Survey Questionnaires Essay1469 Words   |  6 Pages2010); thus it allows for the uncovering of new insights on the phenomena of interest not thought of initially prior to the research. Using this data gathering technique in the proposed study will help understand how Canada’s ethnically diverse population describes their perceptions, attitudes, approaches and experiences in the use of CAM. Similarly, qualitative in-depth semi-structured interview technique will help unravel the paradox of ageing, multimorbidity and the use of CAM. This qualitativeRead MoreSampling Methods Essay1025 Words   |  5 Pagesof research, whilst retaining - as accurately as possible - the characteristics of the whole group. The purpose of taking a sample is to investigate features of the population in greater detail than could be done if the total population was used, and to draw inferences about this population. In addition, at the practical level, a sample is likely to be both cheaper and quicker to investigate. All sampling will involve error and sociologists have developed samplingRead MoreAdvantages Of Simple Sampling And Accuracy Of Representation801 Words   |  4 PagesDisadvantages of simple sampling: a. It is expensive and time consuming. b. Sample selection bias may occur (Horton, 2015). Systematic random sampling: can be described as a most commonly used method in which after a number has been allocated to an individual in the population frame, the first person is selected using a random number table or out of a hat and subsequently those who take part in it are selected or picked using a fixed sample interval (Mathers, Sampling for surveys, 2009, p. 11). Advantages