method+of+data+collection+in+survey+research

báo cáo hóa học:" Quality of data collection in a large HIV observational clinic database in sub-Saharan Africa: implications for clinical research and audit of care" docx

báo cáo hóa học:" Quality of data collection in a large HIV observational clinic database in sub-Saharan Africa: implications for clinical research and audit of care" docx

... database Research cohort database (n = 559) Routine clinic database (n = 559) Routine clinic database (n = 1233) % underreporting of OI events in 559 patients in routine clinic vs. research cohort database (Comparison ... research cohort database). There was also a higher incidence and 233% better reporting of genital herpes in the routine clinic than in the research cohort database. Data audit In the audit of quality of data ... 559 patients in research cohort and same 559 patients in routine clinic databases; and (Comparison B) 559 patients in research cohort database versus 1233 patients in routine clinic database Research...

Ngày tải lên: 20/06/2014, 08:20

7 455 0
Báo cáo hóa học: " Research Article Opportunistic Data Collection in Sparse Wireless Sensor Networks" docx

Báo cáo hóa học: " Research Article Opportunistic Data Collection in Sparse Wireless Sensor Networks" docx

... behind. Instead of deleting messages on transmission, CHARON retains them in a special state that does not allow further forwarding, except in the case that the node meets a sink. Messages in ... optimistic predictions. One of the most impacting , in light of the experimental evidence, is the network load, in combination with the number of messages that can be held in intermediate buffers. We ... two LEGO Mindstorms NXT robots are attached to a hanging EURASIP Journal on Wireless Communications and Networking 19 Interesting topics for future research include the use of message integrity...

Ngày tải lên: 21/06/2014, 11:20

20 414 0
báo cáo hóa học: " Understanding the role of discriminative instruments in HRQoL research: can Ferguson''''s Delta help?" docx

báo cáo hóa học: " Understanding the role of discriminative instruments in HRQoL research: can Ferguson''''s Delta help?" docx

... written and stored in the bowels of the Lewis Annex to applications featured in the center of all brightly-lit health science libraries, and, indeed, informing and changing the practice of health care. Unfortunately, ... Central Page 1 of 2 (page number not for citation purposes) Health and Quality of Life Outcomes Open Access Letter to the Editor Understanding the role of discriminative instruments in HRQoL research: ... read Matthew Hankins' paper on the use of Ferguson's Delta [1] as an index of discriminate validity, the smell and fond memories of the Lewis Annex swept over me like a soft cloud. However,...

Ngày tải lên: 18/06/2014, 19:20

2 456 0
báo cáo hóa học: " Discrimination and reliability: equal partners? Understanding the role of discriminative instruments in HRQoL research: can Ferguson''''s Delta help? A response" pptx

báo cáo hóa học: " Discrimination and reliability: equal partners? Understanding the role of discriminative instruments in HRQoL research: can Ferguson''''s Delta help? A response" pptx

... [6], in which the dichotomous scoring method of the GHQ-12 was found to be less discriminating than the Likert scoring method, were 'well expected'. This again suggests that an index of ... to incorporate these elements into the computation of a coefficient of discrimination if required. As Thurlow [4] pointed out, the only discrimina- tions worth considering are valid discriminations. ... with which discriminations are made. Both Norman and Wyrwich raise the interesting issue of what constitutes a meaningful discrimination, and whether Delta is an index of such discriminations. This happens...

Ngày tải lên: 18/06/2014, 19:20

3 384 0
STUDIES OF WELFARE POPULATIONS Data Collection and Research Issues potx

STUDIES OF WELFARE POPULATIONS Data Collection and Research Issues potx

... surveys; (3) methods for obtaining high response rates in in-person surveys; (4) the effects of incentive payments; (5) methods for adjusting for missing data in surveys of low-income populations; and ... papers on survey issues. They address (1) methods for designing surveys taking into account nonresponse in advance; (2) methods for obtaining high response rates in telephone surveys; (3) methods ... and income with administrative data compared to survey data; and (4) the availability of administrative data on children. Issues in the matching and cleaning of administrative data are discussed...

Ngày tải lên: 06/03/2014, 15:20

539 386 0
Families Under Stress - An Assessment of Data, Theory, and Research on Marriage and Divorce in the Military pptx

Families Under Stress - An Assessment of Data, Theory, and Research on Marriage and Divorce in the Military pptx

... ones in combat, chal- lenges communicating) interfere with spouses’ efforts to maintain their relationships, damaging marriages that would have remained satisfying and fulfilling in the absence of ... reviews of its own (e.g., Office of the Assistant Secretary of Defense for Personnel and Readiness, 1993), we do not review research examining external adap- tation. Instead, we focus our research ... (Bolger and Schilling, 1991; Bolger and Zuckerman, 1995). e in uence of the individualist view of marriage extends to the present day in research that examines such enduring characteristics...

Ngày tải lên: 29/03/2014, 19:20

246 386 0
báo cáo hóa học: " Thai SF-36 health survey: tests of data quality, scaling assumptions, reliability and validity in healthy men and women" pdf

báo cáo hóa học: " Thai SF-36 health survey: tests of data quality, scaling assumptions, reliability and validity in healthy men and women" pdf

... scale. Analytic methods Data quality The number of completed items, the percent of missing data in every item and the frequency distribution of indi- vidual items were determined. Ordering of levels of health The ... should cluster in the same order as hypothesized for the original SF-36. Tests of scaling assumptions Tests of scaling assumptions determine the appropriate- ness of including an item in a particular ... Corresponding author Abstract Background: Since its translation to Thai in 2000, the SF-36 Health Survey has been used extensively in many different clinical settings in Thailand. Its popularity has increased...

Ngày tải lên: 18/06/2014, 19:20

9 574 0
báo cáo hóa học:" Research Article Strong Convergence of a New Iterative Method for Infinite Family of Generalized Equilibrium and Fixed-Point Problems of Nonexpansive Mappings in Hilbert Spaces" pptx

báo cáo hóa học:" Research Article Strong Convergence of a New Iterative Method for Infinite Family of Generalized Equilibrium and Fixed-Point Problems of Nonexpansive Mappings in Hilbert Spaces" pptx

... of a finite family of nonexpansive mappings in a Hilbert space. Let {T n } N n1 N ≥ 1 be a finite family of nonexpansive mappings of H into itself, be {G n } : C ì C R be an innite family of bifunctions, ... set of fixed points of a finite family of nonexpansive mappings in a Hilbert space. We prove some strong convergence theorems for the proposed iterative scheme to a fixed point of the family of nonexpansive ... for γf. Very recently, for finding a common element of the set of a finite family of nonexpansive mappings and the set of solutions of an equilibrium problem, by combining the schemes 1.11 and 1.17,...

Ngày tải lên: 21/06/2014, 11:20

24 398 0
Báo cáo hóa học: " Research Article A New General Iterative Method for a Finite Family of Nonexpansive Mappings in Hilbert Spaces Urailuk Singthong1 and Suthep Suantai1, 2" potx

Báo cáo hóa học: " Research Article A New General Iterative Method for a Finite Family of Nonexpansive Mappings in Hilbert Spaces Urailuk Singthong1 and Suthep Suantai1, 2" potx

... original work is properly cited. We introduce a new general iterative method by using the K-mapping for finding a common fixed point of a finite family of nonexpansive mappings in the framework of ... K- mapping, for finding a common fixed point of a finite family of nonexpansive mappings. For a finite family of nonexpansive mappings {T i } N i1 and sequence {γ n,i } N i in 0, 1, the mapping K n : C ... Suantai, “A new mapping for finding common solutions of equilibrium problems and fixed point problems of finite family of nonexpansive mappings,” Nonlinear Analysis: Theory, Methods & Applications,...

Ngày tải lên: 21/06/2014, 11:20

12 427 0
báo cáo hóa học:" Research Article New Adaptive Method for IQ Imbalance Compensation of Quadrature Modulators in Predistortion Systems" ppt

báo cáo hóa học:" Research Article New Adaptive Method for IQ Imbalance Compensation of Quadrature Modulators in Predistortion Systems" ppt

... to the method in [11] was an effective technique for improving the linearization performance of the MOP PD. In the following, the complexity of both the proposed method and the method in [11]isevaluated. Although ... between the input and output of the linearized PA. This will demonstrate the IQ imbalance effect on the accuracy of the MOP PD in linearizing the PA and increasing memory effects by thickening the ... imbalance compensation in predistortion linearization systems [5, 7, 9–11]. The drawbacks of the existing compensation techniques are the following: (1) offline training using special calibration signals...

Ngày tải lên: 21/06/2014, 20:20

10 362 0
Xem thêm
w