Simple Random Sampling Equivalent Survey Design for the Elimination of Undesirable Samples

2011 ◽  
Vol 5 (2) ◽  
pp. 231-239
Author(s):  
Ila Pant Bisht ◽  
Raj Kishor Bisht
Author(s):  
Supardi Supardi

<p>The purpose of this study was to determine the influence of learning discipline <br />and logical mathematical intelligence on mathematics achievement. This study is a survey design. This research did in student class XI IPA SMA Negeri 98 Jakarta semester 2012/2013. The sample taken by simple random sampling technique, involved 40 students. The instrument were in the forms of questionnaires and tests. The data were analyzed first by test requirements, the normality test, linearity and multicollinearity. Based on the fulfillment of the criteria in terms of the tes analyzed, inferential analysis to the test the research hypothesis. The data were analyzed using correlation and multiple regression. The findings showed that (1) learning discipline and logical mathematical intelligence had a positive and significant simultaneous impact on mathematics achievement. (2) learning discipline had a positive and significant impact on mathematics achievement. (3) logical mathematical intelligence had a positive and significant impact on mathematics achievement. </p>


Author(s):  
Violet E. Ikolo

The study focused on users satisfaction with library services at the Delta State University main Library, Abraka, Delta State. The objective was to find out if users are satisfied with the services, facilities, the library environment, information sources and staff of the library. Using the descriptive survey design the population for the study consisted of all registered library users in the Site II of the Delta State University, Abraka Campus. The study employed the simple random sampling techniques in selecting the sample size for the study, and with a questionnaire data were collected. The findings revealed that the services offered at the Delta State University are inadequate and below average. Most users were satisfied with the availability of information sources in the library but also registered that most of these information sources are not available for loan. The findings also showed that there is a significant relationship between the assessment of library collection by users and their satisfaction with information sources. The library environment is clean and the reading carrels are adequate but, there are no effective lightening and toilet facilities.


1979 ◽  
Vol 36 (4) ◽  
pp. 351-361 ◽  
Author(s):  
W. Cuff ◽  
N. Coleman

A stratified random sample of macrobenthos in Western Port (Victoria, Australia) provided adequate data to take an a posteriori look at the efficiency of various random survey designs in terms of their ability to provide precise estimates of the mean number of individuals per taxon, i.e. mean estimates with the smallest possible variance. Emphasis was placed on the efficiency of the stratified simple random sampling design. The analyses showed that bay-wide estimates resulting from various stratified designs would not have been substantially more precise than those from simple random sampling. This conclusion was not influenced by the allocation strategy used in the stratified design. On the other hand, substantial gains in precision could have been made, for the same total number of grab samples, by increasing the number of stations at the expense of the number of grab samples per station. Our data suggested that the optimal number of grab samples per station is only one, contrary to the common practice of multiple grab samples per station. Key words: stratified, random, survey, optimal, macrobenthos, sample, Western Port


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Aya A. Mitani ◽  
Nathaniel D. Mercaldo ◽  
Sebastien Haneuse ◽  
Jonathan S. Schildcrout

Abstract Background A large multi-center survey was conducted to understand patients’ perspectives on biobank study participation with particular focus on racial and ethnic minorities. In order to enrich the study sample with racial and ethnic minorities, disproportionate stratified sampling was implemented with strata defined by electronic health records (EHR) that are known to be inaccurate. We investigate the effect of sampling strata misclassification in complex survey design. Methods Under non-differential and differential misclassification in the sampling strata, we compare the validity and precision of three simple and common analysis approaches for settings in which the primary exposure is used to define the sampling strata. We also compare the precision gains/losses observed from using a disproportionate stratified sampling scheme compared to using a simple random sample under varying degrees of strata misclassification. Results Disproportionate stratified sampling can result in more efficient parameter estimates of the rare subgroups (race/ethnic minorities) in the sampling strata compared to simple random sampling. When sampling strata misclassification is non-differential with respect to the outcome, a design-agnostic analysis was preferred over model-based and design-based analyses. All methods yielded unbiased parameter estimates but standard error estimates were lowest from the design-agnostic analysis. However, when misclassification is differential, only the design-based method produced valid parameter estimates of the variables included in the sampling strata. Conclusions In complex survey design, when the interest is in making inference on rare subgroups, we recommend implementing disproportionate stratified sampling over simple random sampling even if the sampling strata are misclassified. If the misclassification is non-differential, we recommend a design-agnostic analysis. However, if the misclassification is differential, we recommend using design-based analyses.


Author(s):  
Debela Tezera ◽  
Gadissa Bekele

This study is aimed to investigate effect of teachers’ self-efficacy on their attitude towards the implementation of Multicultural Education literacy (MCEL) in Harari Region Secondary Schools. To realize this descriptive survey design with the quantitative approach is adopted. One hundred, teachers are selected by using stratified random sampling technique and then the simple random sampling technique. Data are collected through closed-ended questionnaires. Descriptive and inferential statistical data analysis is employed. The finding showed that the practice of MCEL in school was medium and teachers’ self-efficacy toward implementations of MCEL in the schools was found statistically significant. Self-efficacy in the implementation of MCEL was a statistically significant predictor of teacher’s attitude and practices toward the implementation of MCEL in the schools respectively. Self-efficacy contributed 17% on attitude and 26 % to practices in the implementation of MCEL had a positive impact. Self-efficacy of teachers toward MCEL had a statistically significant moderate positive relationship with teachers’ practices of MCEL. Self-efficacy had a positive impact on the attitude of teachers and practices of teachers in the implementation of MCEL. Based on the findings, it was concluded the study presented for further research in the field and policy action to prepare teachers in multicultural setting curricula and multicultural educators influencing the development of cultural tolerance, mutual understanding, and unity among diverse students. Hence, it was recommended that organizing panel discussion in order to improve self-efficacy and attitude of teachers from multicultural perspectives in line with implementation of multicultural education through media to build tolerance, mutual respect, build positive attitudes, and national building practices among student in the schools. Further implications and directions for future study are forwarded.


Author(s):  
Lok Raj Sharma

The chief objective of this article is to probe into the level of job satisfaction among community campus teachers. Job satisfaction is the state of how content persons are with their jobs. It can be appraised on the basis of their responses to their feelings, perceptions, likes and dislikes for the jobs. Divergent factors can influence the satisfaction level of the personnel in their work. A crosssectional survey design was adopted to carry out the research study. Twenty question items of five-point Likert scale type regarding the job satisfaction of the teachers were administered at two campuses situated in Dang District of Nepal in 2020. Simple random sampling technique (lottery) was used to select 52 campus teachers as respondents for the study by maintaining the confidence level (95%) and the margin of error (5%) from the population of 59 teachers. The collected data were statistically analyzed by using SPSS .The study revealed that the teachers were satisfied (Median=4) with their teaching profession at the respective campuses. The Mann-Whitney U test showed that the teachers of the two campuses had a similar level of job satisfaction. Similarly, there was no statistically significant difference in the job satisfaction between male teachers and female teachers.


Author(s):  
Anna Ngbea ◽  
◽  
Abraham Kwaghgbah ◽  

This study investigated the influence of Psychological Abuse and Self-Efficacy as predictors of Sexual Abstinence among Adolescents in Makurdi metropolis. The Cross-Sectional Survey design was employed where 208 adolescents in Makurdi metropolis consisting of 98 (47.12%) males and 110 (52.88%) females were used. Their ages ranged from 12-22years with a mean age of 17.54years (SD=3.78). Simple Random sampling technique was used to draw samples for the study. Three instruments were used for data collection; Child Abuse Scale, Generalized Self-Efficacy Scale and the Sexual Abstinence Behaviour Scale. Three hypotheses were tested using Simple Linear and Multiple Regression. Findings indicated that there was a significant influence of psychological abuse on sexual abstinence among adolescents. Secondly, there was a significant influence of self-efficacy on sexual abstinence among adolescents. Lastly, psychological abuse and self-efficacy are significant joint predictors of sexual abstinence among adolescents. It was recommended that the society should desist from abusing adolescents since it was known to affect their sexual behaviour.


2018 ◽  
Vol 3 (2) ◽  
pp. 165-181
Author(s):  
Prem Raj Adhikari

The study deals with the issues related to the contribution and the need of information literacy. This study has explored the importance of information literacy in academic work among the Nepali students of higher education. Plagiarism is the technical term for stealing someone else’s intellectual property. The research examined the truth about the understanding about plagiarism and copyright issues in the use of information. This quantitative study is aligned towards positivist paradigm and adopted survey design for data collection. The population of the study was students of higher education of Tribhuvan University, Kathmandu University and Pokhara University. Two hundred and fifty-four (254) sample populations were drawn using sample size formula for data. For this purpose, simple random sampling was used to determine the number of the sample population. The sample population was selected using random sampling procedure. The data were collected using survey method and were analyzed using SPSS descriptive statistics used for the purpose of data analysis. The findings of this study showed that information literacy is important and helpful in academic works in higher education. Students of higher education rely on the internet and library for their academic resources in Nepal. The use of information literacy is expected to be the part of education to make the learning process effective. This study also focused on the use of right information in appropriate ways among the students of higher education of Nepal. Research indicated that there was lack of understanding what students know and use about the supplied information in higher education in Nepal.


2016 ◽  
Vol 1 (1) ◽  
pp. 39-53
Author(s):  
JOSEPH MWATHI

Purpose: The purpose of this study was to investigate the influence of Board of management governance practices on students’ performance in Kenya Certificate of Secondary Education in Athi River Sub-county, Kenya.Methodology: The research used descriptive survey design. The study targeted 13 public secondary schools in Athi-River Sub-county. The target population was 208 Board of Management members, 13 Board of management chairpersons, 13 principals and 260 teachers in Athi-River Sub-county secondary schools. Stratified random sampling technique was used to select 13 schools to ensure that all the schools were well represented according to the various regions. Census technique was used to select all the 13 principals and 13 Board of management chairpersons. Simple random sampling was used to select 97 other Board of management members and 132 teachers.  The sample size of this study was therefore 255 respondents. The main instrument for the study was questionnaires. The Statistical Package for Social Sciences (SPSS) software version 20.0 was used to carry data analysis.Results: The findings revealed that provision of incentives to teachers, provision of rewards to students, involving teachers in target setting and provision of learning resources were found to be satisfactory variables in explaining students’ performance. This was supported by coefficient of determination also known as the R square of 48%. Regression of coefficients results showed that provision of enough learning resources and students performance was highly correlated, positively and significantly related (r=0.340, p=0.000).  Provision of incentives and students’ performance was also positively and significantly related (r=0.291, p=0.000). Further, results indicated that provision of rewards and student’s performance were positively and significantly related (r=0.262, p=0.000). It was further established that target setting and students’ performance were positively and significantly related (r=0.228, p=0.000).Unique contribution to theory, practice and policy: The study recommended that the training institutes like KEMI should organize tailor made courses for BOM members to equip them with the right knowledge on best governance practices in schools.


2020 ◽  
Vol 9 (2) ◽  
pp. 1755-1762
Author(s):  
Rosly Zunaedi ◽  
Soenarnatalina Melaniani ◽  
Ahsan Ahsan

Good scheduling arrangements are needed to prevent physical, emotional, and psychological exhaustion in nurses which will harm their performance. The aim is to see an assessment of the characteristics of nurse work scheduling in the hospital ward. This study used a descriptive survey design. The population in this study were all nurses in the ward of Lavalette Hospital - Malang. The sampling technique used was simple random sampling. Data collection using a scheduling characteristic questionnaire. Most of the respondents considered that the work scheduling criteria currently applied in the ward were in the sufficient category (80.2%). There are sub-variable coverage (309) and quality (321) less than the average value (322.08). The problems that arise in the nurse scheduling in the ward of Lavalette Hospital - Malang are the suitability of amount and distribution of nurses, quality of the schedule, an exchange between nurses, and time to prepare the schedule.


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