Results 41 to 50 of about 4,634,663 (237)

Floral volatiles evoke partially similar responses in both florivores and pollinators and are correlated with non-volatile reward chemicals [PDF]

, 2023
Rohit Sasidharan, Robert R. Junker, Elisabeth J. Eilers, Caroline Müller   +3 more
openalex   +1 more source

An improved family of unbiased ratio estimators for a population distribution function

AIMS Mathematics
This study discusses a novel family of unbiased ratio estimators using the Hartley-Ross (HR) method. The estimators are designed to estimate the population distribution function (PDF) in the context of simple random sampling with non-response.
Sohail Ahmad, Moiz Qureshi, Hasnain Iftikhar, Paulo Canas Rodrigues, Mohd Ziaur Rehman   +4 more
doaj   +1 more source

A Note on Interviewer Performance Measures in centralised CATI Surveys

Survey Research Methods, 2008
Interviewer performance with respect to convincing sample members to participate in surveys is an important dimension of survey quality. However, unlike in CAPI surveys where each sample case ‘belongs’ to one interviewer, there are hardly any good ...
Oliver Lipps
doaj   +1 more source

On the Plausibility of the Latent Ignorability Assumption

Econometrics, 2021
The estimation of the causal effect of an endogenous treatment based on an instrumental variable (IV) is often complicated by the non-observability of the outcome of interest due to attrition, sample selection, or survey non-response.
Martin Huber
doaj   +1 more source

Supplementary Figure 7 from Different S/M Checkpoint Responses of Tumor and Non–Tumor Cell Lines to DNA Replication Inhibition [PDF]

, 2023
Verónica Rodríguez-Bravo, Sandra Guaita‐Esteruelas, Noelia Salvador, Oriol Bachs, Neus Agell   +4 more
openalex   +1 more source

A new population mean estimator under non-response cases

Journal of Taibah University for Science, 2022
Using the information in x, we consider a new estimator that uses an exponential function to estimate the unknown population mean of y in the case of non-responding units. These cases are divided into two categories as Case I and Case II.
Ceren Unal, Cem Kadilar
doaj   +1 more source

Person-fit statistics, response sets and survey participation in a population-based cohort study [PDF]

Psihologija, 2015
Person-fit methodology is a promising technique for identifying subjects whose test scores have questionable validity. Less is known however about this technique’s ability to predict survey participation longitudinally.
Müller Jörg M., Hasselbach Petra, Loerbroks Adrian, Amelang Manfred   +3 more
doaj   +1 more source

Can Interviewer Observations of the Interview Predict Future Response?

Methoden, Daten, Analysen, 2017
Interviewers made four observations related to future participation, respondent cooperation, enjoyment and whether the respondent found the questions difficult, for a large sample of face-to-face interviews at wave four of the UK Millennium Cohort Study (
Ian Plewis, Lisa Calderwood, Tarek Mostafe   +2 more
doaj   +1 more source

Non-responders in a quitline evaluation are more likely to be smokers – a drop-out and long-term follow-up study of the Swedish National Tobacco Quitline

Tobacco Induced Diseases, 2016
Introduction A previous randomized controlled trial (RCT) of the Swedish National Tobacco Quitline detected no significant differences in smoking cessation outcomes between proactive and reactive services at 12-month follow-up. However, the response rate
Eva Nohlert, John Öhrvik, Ásgeir R Helgason   +2 more
doaj   +1 more source

Discrimination in Mortgage Lending: Evidence from a Correspondence Experiment [PDF]

, 2016
We design and implement an experimental test for differential response by mortgage loan originators (MLOs) to requests for information about loans. Our e-mail correspondence experiment is designed to analyze differential treatment by client race and ...
Hanson, Andrew, Hawley, Zackary, Liu, Bo, Martin, Hal   +3 more
core   +1 more source