Results 31 to 40 of about 16,135,492 (293)

Response bias in computerized tests [PDF]

, 1999
Choosing a response format is a problem when designing computerised tests. Programmers often solve this problem by highlighting a response option and allowing the user to select this option or choose another by using the cursor keys.
Fogarty, Gerard J.
core   +1 more source

Measurement and adjustment of non-response bias based on non-response surveys: the case of Belgium and Norway in the European Social Survey Round 3

Survey Research Methods, 2010
In earlier rounds of the European Social Survey, non-response bias was studied by using population statistics and call record information (para data). In the third round, a new feature was introduced: two kinds of non-respondent surveys were set up using
Hideko Matsuo, Jaak Billiet, Geert Loosveldt, Frode Berglund, Øyven Kleven   +4 more
doaj   +1 more source

Restructured searls family of estimators of population mean in the presence of nonresponse

Frontiers in Applied Mathematics and Statistics, 2022
Nonresponse is a major problem encountered by surveyors when conducting sampling surveys. The present study suggested a naïve modified Searls method for the elevated estimation of the population mean of the primary variable under investigation by ...
Abdullah Ali H. Ahmadini, Taruna Yadav, S. K. Yadav, Asamh Saleh M. Al Luhayb   +3 more
doaj   +1 more source

Maximizing Data Quality using Mode Switching in Mixed-Device Survey Design: Nonresponse Bias and Models of Demographic Behavior

Methoden, Daten, Analysen, 2015
Conducting survey interviews on the internet has become an attractive method for lowering data collection costs and increasing the frequency of interviewing, especially in longitudinal studies.
William G. Axinn, Heather H. Gatny, James Wagner   +2 more
doaj   +1 more source

Differential loss of participants does not necessarily cause selection bias

Australian and New Zealand Journal of Public Health, 2012
Background: Most research is affected by differential participation, where individuals who do not participate have different characteristics to those who do. This is often assumed to induce selection bias.
Kristie N. Carter, Fiona Imlach‐Gunasekara, Sarah K. McKenzie, Tony Blakely   +3 more
doaj   +1 more source

A framework for exploring non-response patterns over time in health surveys

BMC Medical Research Methodology, 2021
Background Most health surveys have experienced a decline in response rates. A structured approach to evaluate whether a decreasing - and potentially more selective - response over time biased estimated trends in health behaviours is lacking.
Famke J. M. Mölenberg, Chris de Vries, Alex Burdorf, Frank J. van Lenthe   +3 more
doaj   +1 more source

ESTIMATING NON-RESPONSE BIAS IN A SURVEY ON ALCOHOL CONSUMPTION: COMPARISON OF RESPONSE WAVES [PDF]

Alcohol and Alcoholism, 2003
According to 'the continuum of resistance model' late respondents can be used as a proxy for non-respondents in estimating non-response bias. In the present study, the validity of this model was explored and tested in three surveys on alcohol consumption.The three studies collected their data by means of mailed questionnaires on alcohol consumption ...
Lahaut, V.M.H.C.J., Jansen, H.A.M., van de Mheen, D., Garretsen, H.F.L., Verdurmen, J.E.E., van Dijk, A.   +5 more
openaire   +3 more sources

Operational momentum in multiplication and division? [PDF]

PLoS ONE, 2014
Biases are commonly seen in numerical cognition. The operational momentum (OM) effect shows that responses to addition and subtraction problems are biased in the whole-number direction of the operation.
Curren Katz, André Knops
doaj   +1 more source

The effectiveness of a monetary incentive offer on survey response rates and response completeness in a longitudinal study

BMC Medical Research Methodology, 2017
Background Achieving adequate response rates is an ongoing challenge for longitudinal studies. The World Trade Center Health Registry is a longitudinal health study that periodically surveys a cohort of ~71,000 people exposed to the 9/11 terrorist ...
Shengchao Yu, Howard E. Alper, Angela-Maithy Nguyen, Robert M. Brackbill, Lennon Turner, Deborah J. Walker, Carey B. Maslow, Kimberly C. Zweig   +7 more
doaj   +1 more source

Adjusting HIV prevalence for survey non-response using mortality rates: an application of the method using surveillance data from rural South Africa [PDF]

, 2010
Background: the main source of HIV prevalence estimates are household and population-based surveys; however, high refusal rates may hinder the interpretation of such estimates.
Barnighausen, Till, Zaba Basia, Till Bärnighausen, Victoria Hosegood, Zaba, Basia, Newell, Marie-Louise, Marie-Louise Newell, Bärnighausen Till, Makandwe Nyirenda, Nyirenda, Makandwe, Newell Marie-Louise, Basia Zaba, Hosegood, Victoria, Nyirenda Makandwe, Hosegood Victoria   +14 more
core   +2 more sources