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Offers of entry into a prize draw, although seldom used as a strategy to improve questionnaire response, were thought by some interviewees to be a cost-effective alternative to giving a monetary incentive.
Offers of entry into prize draws ranged from £25 to £250 for UK 18 30 and US$50 for US-based trials 14 (table 1); there was no information available on the chance of winning a prize.
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For offers of entries into prize draws, the values were higher, ranging from GBP25 to GBP250 for UK prize draws and USD50 for US-based prize draws.
For offers of entries into prize draws, the values were higher, ranging from GBP25 to GBP250 for the UK prize draws and US$50 for US-based prize draws.
This RCT, using a large community based sample, found that the offer of entry into a lottery style draw for £100 of High Street vouchers has no effect on response rates to a postal health questionnaire.
Two trials (297 participants) provided no evidence that giving a monetary incentive is better than an offer of entry into a prize draw for improving response to postal questionnaires (RR 1.04; 95% CI 0.91 to 1.19, P value = 0.56) Analysis 6.1.
Two trial comparisons (297 participants) provide no clear evidence that giving a monetary incentive is better than an offer of entry into a prize draw for improving response to postal questionnaires (RR=1.04; 95% CI 0.91 to 1.19; p=0.56, heterogeneity p=0.18; figure 1C).
The Cochrane Review [ 6] identified 45 trials (44,708 participants) of non-monetary incentives (e.g. key ring, offer of entry into a lottery, offer of study results) and found that the odds of response were approximately a fifth higher when using such incentives.
Again based in England, Roberts et al. (2004) [ 23] in an RCT to evaluate the effect of including a lottery incentive on response rate found that the offer of entry into a lottery style draw for £100 of high street vouchers had no effect on the return rates of postal questionnaires amongst respondents aged 18 years and over (lottery and no incentive conditions both resulted in a 62% response rate).
For people to whom statecraft seems mandarin and unknowable, Sanders offers a point of entry from the outside.
Mr. Olbermann's presence gives the set some urbanity and offers a point of entry for young viewers that is clearly working if you look at the ratings.
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