scholarly journals Predicting response rates of all and recruited respondents: A first attempt

10.32866/7827 ◽  
2019 ◽  
Author(s):  
Basil Schmid ◽  
Kay W. Axhausen
Keyword(s):  
Research Group ◽  
Response Rate ◽  
Response Rates ◽  
Monetary Incentive ◽  
Forecasting Model ◽  
First Time ◽  
Response Burden

This paper reports on the link between a well-defined measure of response burden and response rates among all (uncommitted) and pre-recruited respondents. We show within the limits of our sample of 68 survey waves (including pre-tests; resulting from 35 studies) that the response burden impact is mediated by the level of the commitment of the respondents and the presence of a monetary incentive. This is the first time that a research group provides a response rate forecasting model for its own work and for others to adopt, test and adapt.

Influence of Paper Color and a Monetary Incentive on Response Rate

2004 ◽  
Vol 95 (2) ◽  
pp. 432-434 ◽  
Author(s):  
Keith A. King ◽  
Jennifer L. Vaughan
Keyword(s):  
Eating Disorders ◽  
Response Rate ◽  
Athletic Trainers ◽  
Response Rates ◽  
Monetary Incentive ◽  
Survey Response ◽  
Green Paper ◽  
Survey Response Rate

This study examined whether survey response rate differed based on the color of the paper the survey was printed on (blue vs green) and presence of a monetary incentive. A 4-page survey on eating disorders was mailed to Division 1A and 1AA college head athletic trainers ( N = 223) with half of the surveys on blue paper and half on green paper. Half of the athletic trainers ( n = 111) received a $1.00 monetary incentive, and half ( n = 112) received no monetary incentive. A total of 166 (71%) athletic trainers returned completed surveys. Response rates did not differ based on survey color but did differ based on presence of a monetary incentive. Athletic trainers who received a monetary incentive were significantly more likely than those who did not to return completed surveys (86% vs 63%, respectively).

Association between response rates and monetary incentives in sample study: a systematic review and meta-analysis

2020 ◽  
pp. postgradmedj-2020-137868
Author(s):  
Pengli Jia ◽  
Luis Furuya-Kanamori ◽  
Zong-Shi Qin ◽  
Peng-Yan Jia ◽  
Chang Xu
Keyword(s):  
Dose Response ◽  
Response Rate ◽  
Response Rates ◽  
Monetary Incentive ◽  
Maximum Effect ◽  
Monetary Incentives ◽  
Dose Response Relationship ◽  
First Response ◽  
Final Response ◽  
Relationship Of

ObjectiveTo investigate the effect of monetary incentive and the dose–response relationship of participants’ response rates in surveys.MethodsThree databases were searched for randomised controlled trials (RCTs) that investigated the effect of monetary incentives on participants’ first and final response rates. First response is defined as the responses after the participant was initially contacted and final response is defined as the responses after several reminders were sent. The potential dose–response relationship of the amount of monetary incentive on the relative response rate (RRR) was established by fitting a restricted cubic spline function based on the robust-error meta-regression model.Results105 RCTs were identified. The first RRR increased by 49% (RRR=1.49; 95% CI 1.29 to 1.72) when monetary incentives were provided. Dose–response analysis revealed that an amount between US$6.25 and US$8 had the maximum effect on increasing the first response rate. On average, the final RRR increased almost by 20% (RRR=1.18; 95% CI 1.11 to 1.25) with monetary incentive compared to no-monetary incentive. An amount between US$10 and US$15 had the maximum effect on the final response rate, with an increase in the final RRR of 34% (RRR=1.34; 95% CI 1.19 to 1.51). There was a significant increase in the response rate when two or more reminders were sent.ConclusionMonetary incentives and reminders improve the response rates. Future studies need to consider providing monetary incentives and sending at least two reminders to increase the response rate and reduce the chances of non-response bias.

Evidence of a predation event on a tagged Mediterranean spearfish (Tetrapturus belone; Pisces, Istiophoridae), inferred from pop-up satellite tagging data

2020 ◽  
Vol 33 ◽  
pp. 23
Author(s):  
Danilo Malara ◽  
Pietro Battaglia ◽  
Pierpaolo Consoli ◽  
Erika Arcadi ◽  
Simonepietro Canese ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Research Group ◽  
Marine Mammals ◽  
Biodiversity Hotspot ◽  
Pelagic Species ◽  
Archival Tag ◽  
Abiotic Parameters ◽  
Predation Event ◽  
Satellite Tagging ◽  
First Time

The Strait of Messina is located at the centre of the Mediterranean Sea and is considered a biodiversity hotspot and an obligatory seasonal passage for different pelagic species such as sharks, marine mammals, and billfishes. For the first time, in the Strait of Messina, our research group tagged a Mediterranean spearfish (Tetrapturus belone) using a pop-up satellite archival tag (PSAT). The observation of abiotic parameters (depth, light, and temperature) recorded by the PSAT confirmed that the tagged specimen was predated after about nine hours. The tag was then regurgitated 14 days after the tag deployment date. The analysis of collected data seems to indicate that the predator may be an ectothermic shark, most likely the bluntnose sixgill shark (Hexanchus griseus).

Comparing face-to-face to web data collection: unit response and costs in a national health survey (Preprint)

2020 ◽  
Author(s):  
Elise Braekman ◽  
Stefaan Demarest ◽  
Rana Charafeddine ◽  
Sabine Drieskens ◽  
Finaba Berete ◽  
...  
Keyword(s):  
Data Collection ◽  
Response Rate ◽  
Response Rates ◽  
Demographic Characteristics ◽  
Unit Response ◽  
Cost Advantage ◽  
Web Data ◽  
Demographic Groups ◽  
Considerable Cost ◽  
The Difference

BACKGROUND Potential is seen in web data collection for population health surveys due to a combination of its cost-effectiveness, implementation ease and the increased internet penetration. Nonetheless, web modes may lead to lower and more selective unit response rates than traditional modes and hence may increase bias in the measured indicators. OBJECTIVE This research assesses the unit response and costs of a web versus F2F study. METHODS Alongside the F2F Belgian Health Interview Survey of 2018 (BHIS2018; n gross sample used: 7,698), a web survey (BHISWEB; n gross sample=6,183) is organized. Socio-demographic data on invited individuals is obtained from the national register and census linkages. Unit response rates considering the different sampling probabilities of both surveys are calculated. Logistic regression analyses examine the association between mode system (web vs. F2F) and socio-demographic characteristics on unit non-response. The costs per completed web questionnaire are compared with these for a completed F2F questionnaire. RESULTS The unit response rate is lower in BHISWEB (18.0%) versus BHIS2018 (43.1%). A lower web response is found among all socio-demographic groups, however, the difference is higher among people older than 65, low educated people, people with a non-Belgian nationality, people living alone and these living in Brussels Capital. Not the same socio-demographic characteristics are associated with non-response in both studies. Having another European (OR (95% CI): 1.60 (1.20-2.13)) or a non-European nationality (OR (95% CI): 2.57 (1.79-3.70)) (compared to having the Belgian nationality) and living in the Brussels Capital (95% CI): 1.72 (1.41-2.10)) or Walloon (OR (95% CI): 1.47 (1.15 - 1.87) region (compared to living in the Flemish region) is only in BHISWEB associated with a higher non-response. In BHIS2018 younger people (OR (95% CI): 1.31 (1.11-1.54)) are more likely to be non-respondent than older people, this was not found BHISWEB. In both studies, lower educated people have a higher change to be non-respondent, but this effect is more pronounced in BHISWEB (OR low vs. high education level (95% CI): Web 2.71 (2.21-3.39)); F2F 1.70 (1.48-1.95)). The BHISWEB study has a considerable cost advantage; the total cost per completed questionnaire is almost three times lower (€41) compared to the F2F data collection (€111). CONCLUSIONS The F2F unit response rate is generally higher, yet for certain groups the difference between web versus F2F is more limited. A considerable cost advantage of web collection is found. It is therefore worthwhile to experiment with adaptive mixed-mode designs to optimize financial resources without increasing selection bias; e.g. only inviting socio-demographic groups more eager to participate online for web surveys while remaining to focus on increasing the F2F response rates for other groups. CLINICALTRIAL Studies approved by the Ethics Committee of the University hospital of Ghent

scholarly journals CGRP-antibodies, topiramate and botulinum toxin type A in episodic and chronic migraine: A systematic review and meta-analysis

Cephalalgia ◽  
2021 ◽  
pp. 033310242110181
Author(s):  
Florian Frank ◽  
Hanno Ulmer ◽  
Victoria Sidoroff ◽  
Gregor Broessner
Keyword(s):  
Systematic Review ◽  
Monoclonal Antibodies ◽  
Botulinum Toxin ◽  
Response Rate ◽  
Meta Analysis ◽  
Botulinum Toxin Type A ◽  
Type A ◽  
Response Rates ◽  
Botulinum Toxin Type ◽  
Odds Ratios

Background The approval of monoclonal antibodies for prevention of migraine has revolutionized treatment for patients. Oral preventatives are still considered first line treatments as head-to-head trials comparing them with antibodies are lacking. Methods The main purpose of this study was to provide a comparative overview of the efficacy of three commonly prescribed migraine preventative medication classes. For this systematic review and meta-analysis, we searched the databases CENTRAL, EMBASE, and MEDLINE until 20 March 2020. We included RCTs reporting the 50% response rates for topiramate, Botulinum Toxin Type A and monoclonal antibodies against CGRP(r). Studies were excluded if response rates were not reported, treatment allocation was unclear, or if study quality was insufficient. Primary outcome measure were the 50% response rates. The pooled odds ratios with 95% confidence intervals were calculated with the random effects model. The study was registered at PROSPERO (CRD42020222880). Findings We identified 6552 reports. Thirty-two were eligible for our review. Studies assessing monoclonal antibodies included 13,302 patients and yielded pooled odds ratios for the 50% response rate of 2.30 (CI: 2.11–2.50). Topiramate had an overall effect estimate of 2.70 (CI: 1.97–3.69) with 1989 included patients and Botulinum Toxin Type A achieved 1.28 (CI: 0.98–1. 67) with 2472 patients included. Interpretation Topiramate, botulinum toxin type A and monoclonal antibodies showed higher odds ratios in achieving a 50% response rate compared to placebo. Topiramate numerically demonstrated the greatest effect size but also the highest drop-out rate.

scholarly journals Efficacy of BRAF and MEK Inhibition in Patients with BRAF-Mutant Advanced Melanoma and Germline CDKN2A Pathogenic Variants

Cancers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 2440
Author(s):  
Francesco Spagnolo ◽  
Bruna Dalmasso ◽  
Enrica Tanda ◽  
Miriam Potrony ◽  
Susana Puig ◽  
...  
Keyword(s):  
Real World ◽  
Response Rate ◽  
Suppressor Gene ◽  
Phase Iii ◽  
Clinical Activity ◽  
P Value ◽  
Pathogenic Variants ◽  
Phase Iii Trials ◽  
The Difference ◽  
First Time

Inherited pathogenic variants (PVs) in the CDKN2A tumor suppressor gene are among the strongest risk factors for cutaneous melanoma. Dysregulation of the p16/RB1 pathway may intrinsically limit the activity of MAPK-directed therapy due to the interplay between the two pathways. In our study, we assessed, for the first time, whether patients with germline CDKN2A PVs achieve suboptimal results with BRAF inhibitors (BRAFi)+/−MEK inhibitors (MEKi). We compared the response rate of nineteen CDKN2A PVs carriers who received first-line treatment with BRAFi+/−MEKi with an expected rate derived from phase III trials and “real-world” studies. We observed partial response in 16/19 patients (84%), and no complete responses. The overall response rate was higher than that expected from phase III trials (66%), although not statistically significant (p-value = 0.143; 95% CI = 0.60–0.97); the difference was statistically significant (p-value = 0.019; 95% CI = 0.62–0.97) in the comparison with real-world studies (57%). The clinical activity of BRAFi+/−MEKi in patients with germline CDKN2A PV was not inferior to that of clinical trials and real-world studies, which is of primary importance for clinical management and genetic counseling of this subgroup of patients.

Provinciale responsverschillen in het Vlaamse Bevolkingsonderzoek Dikkedarmkanker: inzichten uit gemeentelijke socio-demografische en gezondheidsgerelateerde kenmerken

2021 ◽  
Author(s):  
T.N. TRAN ◽  
G. VAN HAL ◽  
M. PEETERS ◽  
S. JIDKOVA ◽  
S. HOECK
Keyword(s):  
Colorectal Cancer ◽  
Response Rate ◽  
Response Rates ◽  
Target Population ◽  
Wilcoxon Test ◽  
Future Research ◽  
Screening Methods ◽  
Average Income ◽  
Medical File ◽  
Crc Screening

Municipal characteristics associated with response rate to organised colorectal cancer screening in Flanders Introduction In Flanders (Belgium), the response rate to organised colorectal cancer (CRC) screening is still suboptimal (~ 50%). We studied the characteristics of municipalities in the Flemish provinces with the highest and lowest response rates to explore factors that might be associated with the response rate to organised CRC screening. Methods The response rates of municipalities in 5 Flemish provinces and the characteristics of municipalities in the provinces with the highest and lowest response rates were compared to the average measures of Flanders (data 2017) using an unpaired two-sample Wilcoxon test. Results The municipal response rates in Limburg and Antwerp were significantly higher, and those in West Flanders and Flemish Brabant significantly lower compared to Flanders. Further analyses of Limburg (highest response rate) and Flemish Brabant (lowest response rate) suggested that municipalities with higher response rates had more men and people aged 60-64 in the target population, more jobseekers and more people who contacted GPs/specialists frequently, but fewer people aged 70-74 in the target population and with a lower average income compared to Flanders. In contrast, municipalities with lower response rates had fewer men in the target population, fewer people having a partner, fewer jobseekers and fewer people having a global medical file, but more people with a non-Dutch or non-Belgian nationality and a higher average income (p-values < 0.01). Conclusion This exploratory study identifies certain demographic, socioeconomic and health‑related municipal characteristics that may be related to the response rate to CRC screening in Flanders. These findings can guide future research and investigations with the aim to improve the response rate to CRC screening.

scholarly journals Portuguese Primary Care physicians response rate in surveys: A systematic review

2018 ◽  
Vol 64 (3) ◽  
pp. 272-280 ◽  
Author(s):  
Nuno Basílio ◽  
Sara Cardoso ◽  
José Mendes Nunes ◽  
Liliana Laranjo ◽  
Maria da Luz Antunes ◽  
...  
Keyword(s):  
Primary Care ◽  
Primary Care Physicians ◽  
Response Rate ◽  
Internal Validity ◽  
Response Rates ◽  
Monetary Incentives ◽  
Average Response ◽  
Average Response Rate ◽  
Effective Strategies ◽  
E Mail

Summary Introduction: Surveys are a useful tool in primary care. However, low response rates can introduce selection bias, impairing both external and internal validity. The aim of this study was to assess the average response rate in surveys with Portuguese general practitioners (GPs). Method: We searched the Medline, Web of Science, Scopus, Embase, PsychInfo, SciELO, IndexRMP, RCAAP, Revista Portuguesa de Medicina Geral e Familiar, Acta Médica Portuguesa and the proceedings of conferences of general practice from incepton to December 2016. We included all postal, e-mail, telephone and personal surveys to primary care physicians without language restrictions. We did not assess risk of bias of included studies, since the main outcome was survey response rate. We performed planned subgroup analyses of the use of monetary incentives, the use of non-monetary incentives, survey delivery modes and prior contact with participants. Results: A total of 1,094 papers were identified and 37 studies were included in this review. The response rate in surveys done to Portuguese GPs was 56% (95CI 47-64%). There was substantial heterogeneity among included studies (I2=99%), but subgroup analysis did not explain this heterogeneity. Conclusion: Consistent with other published studies, the average response rate in surveys done with Portuguese GPs was 56%, with substantial variation among studies. Use of monetary incentives, one of the most effective strategies to increase response rates, was not present in any of the included studies.

The Political Scientist Decides: An Examination of the 1969 APSA Ballot

1970 ◽  
Vol 3 (03) ◽  
pp. 311-320
Author(s):  
John E. Mueller
Keyword(s):  
Annual Meeting ◽  
Response Rate ◽  
American Political Science Association ◽  
The Political ◽  
Political Scientist ◽  
Alphabetical Order ◽  
American Political Science ◽  
First Time ◽  
Vote Result ◽  
Science Association

I always vote for the man, not the party.–Trad.In its election for offices in 1969, the American Political Science Association, apparently for the first time in its rarely turbulent history, found the nominees of its Official Nominating Committee challenged by an insurgent group. In order to handle this unprecedented situation, it was decided at the annual meeting to carry out the election by mail ballot and the American Arbitration Association was engaged to administer the operation.Ballots were mailed to the 13,061 members of the Association in October, 1969. Accompanying them were materials containing statements of belief and biographies for each of the candidates. The response rate was 64 percent.The ballots carried the contestants indicated in Table 1. For each office the candidates are listed in the Table in the order of their vote result (they were listed in alphabetical order on the ballot) and for each candidate the group endorsements, as they were presented on the ballot, are indicated. Except for the group endorsements, no identifying information accompanied the names of the candidates on the ballots.

scholarly journals Effectiveness of SMS messaging for diarrhoea measurement: a factorial cross-over randomised controlled trial

2020 ◽  
Author(s):  
Ryan Trevor Titus Rego ◽  
Samuel Watson ◽  
Philbert Ishengoma ◽  
Philemon Langat ◽  
Hezekiah Pireh Otieno ◽  
...  
Keyword(s):  
Randomised Controlled Trial ◽  
Text Messaging ◽  
Response Rate ◽  
Financial Incentive ◽  
Controlled Trial ◽  
Response Rates ◽  
Lower Response ◽  
Lower Response Rate ◽  
The Mean ◽  
Randomised Controlled

Abstract Background Text messaging systems are used to collect data on symptom prevalence. Using a text messaging system, we evaluated the effects of question load, question frequency, and financial incentive on response rates and reported infant diarrhoea rates in an infant diarrhoea survey. Methods We performed a factorial cross-over randomised controlled trial of an SMS surveying system for infant diarrhoea surveillance with treatments: financial incentive (yes/no), question load (1-question/3-question), and questioning frequency (daily/fortnightly). Participants progressed through all treatment combinations over eight two-week rounds. Data were analysed using multivariable logistic regressions to determine the impacts of the treatments on the response rates and reported diarrhoea rates. Attitudes were explored through qualitative interviews. Results For the 141 participants, the mean response rate was 47%. In terms of percentage point differences (ppd), daily questioning was associated with a lower response rate than fortnightly (-1·2[95%CI:-4·9,2·5]); high (3-question) question loads were associated with a lower response rate than low (1-question) question loads (-7·0[95%CI:-10·8,-3·1]); and financial incentivisation was associated with a higher response rate than no financial incentivisation (6·4[95%CI:2·6,10·2]). The mean two-week diarrhoea rate was 36·4%. Daily questioning was associated with a higher reported diarrhoea rate than fortnightly (29·9[95%CI:22·8,36·9]); with little evidence for impact by incentivisation or question load. Conclusions Close to half of all participants responded to the SMS survey. Daily questioning evoked a statistically higher rate of reported diarrhoea, while financial incentivisation and low (1-question) question loads evoked higher response rates than no incentive and high (3-question) question loads respectively. Trial Registration The protocol was registered on ISRCTN on the 20 th of March 2019 under number ISRCTN11410773 .

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