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Ranking Score Explained

G'day, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.

The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!

We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?

Below you'll find details around some of the important factors that went into calculating the ranking score for Doubtful Sound Day Cruise.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.

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Cymen Crick

Rankers Owner

Doubtful Sound Day Cruise

Valid Reviews

283 Valid Reviews

The Doubtful Sound Day Cruise experience has a total of 285 reviews. There are 283 valid reviews that are included when calculating the ranking score and 2 invalid reviews that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.

Below is the distribution of ratings for the 283 valid reviews:

Rating Count Percentage
10/10 104
37%
9/10 93
33%
8/10 55
19%
7/10 15
5%
6/10 6
2%
5/10 8
3%
4/10 1
0%
3/10 1
0%
2/10 0
0%
1/10 0
0%

88.52% Average

The raw data average (mean) for all the Doubtful Sound Day Cruise valid reviews is 88.52% and is based on 283 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

Face-to-Face Reviews

262 Face-to-Face Reviews

The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.

More about face-to-face reviews

Within the 283 valid reviews, the experience has 262 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 262 face-to-face reviews:

Rating Count Percentage
10/10 92
35%
9/10 87
33%
8/10 53
20%
7/10 14
5%
6/10 6
2%
5/10 8
3%
4/10 1
0%
3/10 1
0%
2/10 0
0%
1/10 0
0%

88.09% Average

The raw data average (mean) for all the Doubtful Sound Day Cruise face-to-face reviews is 88.09% and is based on 262 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

89.97%

Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.

Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.

Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.

Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.

Reviewer Rating Age Relative Weight
Nanay 10/10 1361 days 100%
Joanne&Ian 10/10 1453 days 75%
Geoff Steele 8/10 2729 days 18%
Axel and Patricia G 6/10 2918 days 14%
Leonie Westerhot 8/10 2990 days 15%
Ivanova R 9/10 3247 days 13%
Lorenz Pfisterer 10/10 3259 days 13%
Heidi et Mat 8/10 3268 days 12%
Anke Vater 10/10 3269 days 13%
Anouk Jongsma 9/10 3277 days 12%
Robin WUERFEL 9/10 3349 days 12%
Helen Parsons 10/10 3669 days 8%
Peter Beeloo 9/10 3672 days 8%
Laurent Arditi 9/10 3857 days 6%
Sheila Galpin 9/10 4008 days 4%
Simon Galpin 9/10 4008 days 4%
Douglas Dean 10/10 4010 days 4%
Stina Hultberg 4/10 4014 days 3%
Alexander Zimmer 7/10 4015 days 4%
Linus Larsson 3/10 4016 days 2%
Leon Courtney 10/10 4017 days 4%
Libby 10/10 4031 days 4%
Colin Billington 7/10 4032 days 4%
Don Wallis 10/10 4035 days 4%
Bill 7/10 4036 days 4%
Saskia 5/10 4036 days 3%
Terry Seaman 8/10 4038 days 4%
S B 10/10 4051 days 4%
M K 10/10 4051 days 4%
Alacchi Moustier 10/10 4051 days 4%
Maya Bakker-deDreu 8/10 4059 days 4%
Stuart Wilson 8/10 4065 days 3%
Fabian Lee 5/10 4068 days 3%
paul beacock 10/10 4069 days 3%
Gal Bero 10/10 4072 days 3%
Elly Zimmer 6/10 4076 days 3%
Bjorn Van Mulders 10/10 4079 days 3%
Kim Maertens 9/10 4079 days 3%
Steve Warren 10/10 4191 days 2%
hendrik king 7/10 4283 days 1%
Peter Jolliffe 10/10 4375 days 0%
Helen Dean 10/10 4375 days 0%
Dave Mertzig 10/10 4375 days 0%
Kathryn Pisco 9/10 4381 days 6%
Mike Pisco 9/10 4381 days 6%
Sebastian and Peter Beate 10/10 4398 days 6%
Fraser Goldsmith 8/10 4399 days 6%
Bucher 9/10 4450 days 6%
Marieke 8/10 4451 days 6%
Chew (Peter) 7/10 4456 days 5%
Natalie Nubler 6/10 4457 days 5%
Frans Derks 9/10 4458 days 6%
Meryem Buchwitz 9/10 4478 days 6%
roos wubben 9/10 4481 days 6%
Dagette 9/10 4526 days 6%
Teri C 10/10 4556 days 6%
Rob Klauer 5/10 4728 days 4%
Oliver Hardt 9/10 4729 days 6%
Val Phillips 8/10 4733 days 6%
Peter Adams 9/10 4734 days 6%
Harry Ruys 8/10 4736 days 6%
John McAllister 9/10 4737 days 6%
Keith Helen 10/10 4740 days 6%
Daniel Patricia 9/10 4743 days 6%
Laura Diepeveen 8/10 4745 days 6%
Fries 10/10 4749 days 6%
Karin Laurev 10/10 4749 days 6%
Gillian Rowe 9/10 4750 days 6%
Nigel Horrocks 7/10 4750 days 5%
Dieter Mangold 10/10 4752 days 6%
Lyn Deavin 8/10 4752 days 6%
Sabine & Stefan 10/10 4753 days 6%
Randewyk 8/10 4753 days 6%
Koster 6/10 4755 days 5%
Peter Aertssen 7/10 4755 days 5%
John A Jerome 8/10 4755 days 6%
Lynn Robinson 10/10 4761 days 6%
Heike 9/10 4764 days 6%
Robert MacLeod-Smith 8/10 4765 days 6%
Carel 8/10 4766 days 6%
Anna 9/10 4767 days 6%
Barrie Corless 9/10 4768 days 6%
Urban Reifler 10/10 4780 days 6%
Lyn Stainton 10/10 4843 days 6%
John & Vicki 8/10 4847 days 6%
jenckes 9/10 4922 days 6%
Debbie Smithers 10/10 5064 days 6%
Julie and Russ Charles 10/10 5088 days 6%
Kevin Wong 10/10 5088 days 6%
Rocipon 8/10 5089 days 6%
Margit and Corein Groenevelt 7/10 5092 days 5%
Richard Dudfield 10/10 5092 days 6%
John Duffy 10/10 5092 days 6%
Richard Gallichan 9/10 5093 days 6%
Jean Barker 8/10 5093 days 6%
Bette Eh 10/10 5095 days 6%
bryfrance 10/10 5096 days 6%
Juliane Kleiu 10/10 5096 days 6%
Claudia 8/10 5096 days 6%
E Brockbank 9/10 5097 days 6%
David Mellard 10/10 5098 days 6%
Bruce & Elaine Chote 10/10 5098 days 6%
Roland Berger 7/10 5099 days 5%
Ross 9/10 5099 days 6%
Gerstmann 9/10 5100 days 6%
Ekhard Wittkugel 10/10 5102 days 6%
Stephen Shearer 10/10 5103 days 6%
Monika 10/10 5104 days 6%
Betten 9/10 5105 days 6%
Stephen Jones 9/10 5106 days 6%
Mike and Diane Baker 10/10 5107 days 6%
Lenore Dejong 10/10 5108 days 6%
Andreas Fritesche 8/10 5109 days 6%
Matthys Kikke 9/10 5110 days 6%
Bucher Weruer 10/10 5110 days 6%
Camilla Andersson 7/10 5111 days 5%
Bob Adams 10/10 5118 days 6%
John 8/10 5118 days 6%
Katie Nicol 10/10 5119 days 6%
Martin Current 9/10 5121 days 6%
Teum and Orselien 8/10 5122 days 6%
Vanderhorst 8/10 5122 days 6%
John Price 9/10 5124 days 6%
Doris Schollenberger 10/10 5124 days 6%
Phil Hunter 9/10 5125 days 6%
Chris 8/10 5126 days 6%
Gordon Daniels 8/10 5129 days 6%
Hull 9/10 5129 days 6%
Lizzie 10/10 5196 days 6%
allesca 10/10 5226 days 6%
M Schram 8/10 5389 days 6%
Versteeg 9/10 5392 days 6%
Lomas 10/10 5401 days 6%
Maureen 10/10 5405 days 6%
Amy 9/10 5410 days 6%
Don & Geraldine 10/10 5446 days 6%
Hans and Astrid 10/10 5448 days 6%
Agnes 10/10 5450 days 6%
maggie Webster 10/10 5457 days 6%
Keita-Karen Buchanan 10/10 5457 days 6%
Lars Taarnhoej 7/10 5457 days 5%
markus Brandenberger 10/10 5458 days 6%
Jvjm Family 9/10 5459 days 6%
David B 7/10 5466 days 5%
Margaret O'Sullivan 8/10 5466 days 6%
Chris el capitan 9/10 5476 days 6%
John Cox 9/10 5477 days 6%
Muller Weissert 8/10 5478 days 6%
Brian Morris 9/10 5480 days 6%
Jobbs 10/10 5480 days 6%
Maria Newton 9/10 5481 days 6%
Dieter Groscurth 8/10 5481 days 6%
Gordon and Joyce 9/10 5481 days 6%
Remko Ebbens 9/10 5484 days 6%
Thijs Schoemaker 8/10 5485 days 6%
Armand 5/10 5485 days 4%
Ferth 10/10 5485 days 6%
J Kempeneers 10/10 5485 days 6%
Thea X 5/10 5494 days 4%
Keith Wilde 10/10 5494 days 6%
Dick Rosman 9/10 5495 days 6%
Terry Phillips 5/10 5496 days 4%
Jules 8/10 5496 days 6%
Carl Diehl 9/10 5497 days 6%
Paul Schoepfer 9/10 5497 days 6%
Uwe Rieper 10/10 5498 days 6%
Yvonne Ing 10/10 5498 days 6%
Diane Chapple 9/10 5498 days 6%
wannab 9/10 5499 days 6%
Kevin and Teresa 9/10 5499 days 6%
Christiane Lindenberg 9/10 5508 days 6%
Nigel Armstrong 9/10 5510 days 6%
Buss 10/10 5512 days 6%
John J 9/10 5513 days 6%
Heinrich Hax 10/10 5519 days 6%
marcusba 8/10 5542 days 6%
tanh 9/10 5546 days 6%
mariak 7/10 5547 days 5%
Silvana Thom 10/10 5571 days 6%
Wolfgang Dittrich 10/10 5571 days 6%
Chris Bulman 10/10 5572 days 6%
andyge 8/10 5591 days 6%
Ritag 9/10 5677 days 6%
regw 10/10 5681 days 6%
Cate 9/10 5804 days 6%
ginekek 9/10 5805 days 6%
geoffelizabeth 9/10 5805 days 6%
mikestep 9/10 5805 days 6%
EllenorO 10/10 5805 days 6%
Van Lent 9/10 5806 days 6%
Anna 10/10 5806 days 6%
Mike 9/10 5809 days 6%
Richard 10/10 5814 days 6%
Michael Walsall 10/10 5814 days 6%
AstridVG 8/10 5821 days 6%
Christine 9/10 5821 days 6%
Peter 9/10 5821 days 6%
DimitriD 5/10 5822 days 4%
Kitty 9/10 5822 days 6%
Max 10/10 5824 days 6%
Andy Baker 9/10 5825 days 6%
Francesca Sabat 8/10 5827 days 6%
Robert 10/10 5835 days 6%
Melissa Gillespie 10/10 5836 days 6%
Hetty 9/10 5836 days 6%
Charles 7/10 5837 days 5%
Byleveld 8/10 5838 days 6%
JoseB 8/10 5839 days 6%
MrHebbard 10/10 5839 days 6%
ChristineM 10/10 5839 days 6%
Elrik frau 10/10 5839 days 6%
Louise 9/10 5845 days 6%
Douglas 9/10 5846 days 6%
CSander 9/10 5863 days 6%
Patricia 8/10 5873 days 6%
Dijk 8/10 5877 days 6%
Josefine 10/10 5877 days 6%
Ducolq 5/10 5877 days 4%
Jacques 8/10 5878 days 6%
Carina 8/10 5883 days 6%
Michael 9/10 5915 days 6%
silvia 8/10 5917 days 6%
Anouk 8/10 5917 days 6%
Mat 9/10 5922 days 6%
Paul 8/10 5968 days 6%
Helga 9/10 5979 days 6%
Mikel 9/10 6044 days 6%
Christine 6/10 6053 days 5%
Jim Summers 9/10 6053 days 6%
Franz 7/10 6176 days 5%
Linda and Peter 10/10 6184 days 6%
Mike and Judy 8/10 6185 days 6%
Methers 9/10 6185 days 6%
Denise 10/10 6188 days 6%
Kavanagh 8/10 6188 days 6%
De Wijn 8/10 6191 days 6%
Lisa Jones 9/10 6192 days 6%
Christian 9/10 6192 days 6%
Soren Danning 8/10 6192 days 6%
Jones 10/10 6196 days 6%
Orla Hansen 10/10 6197 days 6%
Bauer 10/10 6203 days 6%
Aharon 10/10 6203 days 6%
D.A. Mulder 9/10 6204 days 6%
Jurg Meister 8/10 6205 days 6%
Sally and David Wallis 10/10 6205 days 6%
Knol 9/10 6206 days 6%
Sue Randall 8/10 6209 days 6%
Cole Penelope 10/10 6209 days 6%
Blenkoe 6/10 6210 days 5%
Erwin de Kleijn 8/10 6210 days 6%
Thomas 9/10 6219 days 6%
Bex 10/10 6232 days 6%
Van Hoof 9/10 6245 days 6%
Tim 10/10 6245 days 6%
Gabriel Faber 9/10 6280 days 6%
Jonkers 9/10 6282 days 6%
Edwin 10/10 6286 days 6%
Lyn Saxon 10/10 6290 days 6%
Wendy Williams 10/10 6297 days 6%
Hans Knappmann 10/10 6407 days 6%
Phillipa 10/10 6515 days 6%
Stefan&Gerte 9/10 6529 days 6%
Cat 9/10 6535 days 6%
TeamFlorida 10/10 6542 days 6%
Jo 9/10 6542 days 6%
Fenke 9/10 6547 days 6%
Bas 9/10 6547 days 6%
Martin Smith 9/10 6552 days 6%
John Beirne 9/10 6559 days 6%
Palle 9/10 6564 days 6%
Anna 9/10 6564 days 6%
Svenja 10/10 6570 days 6%
Shirely 10/10 6570 days 6%
Rogier 8/10 6571 days 6%
Wendy 8/10 6575 days 6%
Kerry 10/10 6580 days 6%
Henrich 10/10 6580 days 6%
Messing 10/10 6583 days 6%
Rolf Kruger 10/10 6583 days 6%
Ian 8/10 6587 days 6%
Peter 9/10 6587 days 6%
Brian 10/10 6587 days 6%

Adjustments

Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.

Sample Size Adjustment

No Adjustment

A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Doubtful Sound Day Cruise experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.14% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 53 days. However the Doubtful Sound Day Cruise experience does not meet the criteria for any adjustment.

In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The Doubtful Sound Day Cruise experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
… …
197 -4.08%
198 -4.10%
199 -4.12%
200 -4.14%
201 -4.16%
202 -4.18%
203 -4.20%
… …

Balancing Adjustment

1.66% Adjustment

Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.

You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.

We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.

Final Ranking Score

87%

The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.