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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's avatar

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

89.98%

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 1412 days 100%
Joanne&Ian 10/10 1504 days 74%
Geoff Steele 8/10 2781 days 20%
Axel and Patricia G 6/10 2969 days 16%
Leonie Westerhot 8/10 3041 days 17%
Ivanova R 9/10 3298 days 14%
Lorenz Pfisterer 10/10 3310 days 14%
Heidi et Mat 8/10 3319 days 13%
Anke Vater 10/10 3320 days 14%
Anouk Jongsma 9/10 3328 days 13%
Robin WUERFEL 9/10 3400 days 12%
Helen Parsons 10/10 3720 days 8%
Peter Beeloo 9/10 3724 days 8%
Laurent Arditi 9/10 3908 days 6%
Sheila Galpin 9/10 4059 days 4%
Simon Galpin 9/10 4059 days 4%
Douglas Dean 10/10 4061 days 4%
Stina Hultberg 4/10 4065 days 2%
Alexander Zimmer 7/10 4066 days 3%
Linus Larsson 3/10 4067 days 2%
Leon Courtney 10/10 4068 days 4%
Libby 10/10 4082 days 3%
Colin Billington 7/10 4083 days 3%
Don Wallis 10/10 4086 days 3%
Bill 7/10 4087 days 3%
Saskia 5/10 4087 days 2%
Terry Seaman 8/10 4089 days 3%
S B 10/10 4102 days 3%
M K 10/10 4102 days 3%
Alacchi Moustier 10/10 4102 days 3%
Maya Bakker-deDreu 8/10 4110 days 3%
Stuart Wilson 8/10 4116 days 3%
Fabian Lee 5/10 4119 days 2%
paul beacock 10/10 4120 days 3%
Gal Bero 10/10 4123 days 3%
Elly Zimmer 6/10 4127 days 2%
Bjorn Van Mulders 10/10 4130 days 3%
Kim Maertens 9/10 4130 days 3%
Steve Warren 10/10 4242 days 1%
hendrik king 7/10 4334 days 0%
Peter Jolliffe 10/10 4426 days 6%
Helen Dean 10/10 4426 days 6%
Dave Mertzig 10/10 4426 days 6%
Kathryn Pisco 9/10 4432 days 6%
Mike Pisco 9/10 4432 days 6%
Sebastian and Peter Beate 10/10 4449 days 6%
Fraser Goldsmith 8/10 4450 days 6%
Bucher 9/10 4501 days 6%
Marieke 8/10 4502 days 6%
Chew (Peter) 7/10 4507 days 6%
Natalie Nubler 6/10 4508 days 5%
Frans Derks 9/10 4509 days 6%
Meryem Buchwitz 9/10 4529 days 6%
roos wubben 9/10 4532 days 6%
Dagette 9/10 4577 days 6%
Teri C 10/10 4607 days 6%
Rob Klauer 5/10 4779 days 5%
Oliver Hardt 9/10 4780 days 6%
Val Phillips 8/10 4784 days 6%
Peter Adams 9/10 4785 days 6%
Harry Ruys 8/10 4787 days 6%
John McAllister 9/10 4788 days 6%
Keith Helen 10/10 4791 days 6%
Daniel Patricia 9/10 4794 days 6%
Laura Diepeveen 8/10 4796 days 6%
Fries 10/10 4800 days 6%
Karin Laurev 10/10 4800 days 6%
Gillian Rowe 9/10 4801 days 6%
Nigel Horrocks 7/10 4801 days 6%
Dieter Mangold 10/10 4803 days 6%
Lyn Deavin 8/10 4803 days 6%
Sabine & Stefan 10/10 4804 days 6%
Randewyk 8/10 4804 days 6%
Koster 6/10 4806 days 5%
Peter Aertssen 7/10 4806 days 6%
John A Jerome 8/10 4806 days 6%
Lynn Robinson 10/10 4812 days 6%
Heike 9/10 4815 days 6%
Robert MacLeod-Smith 8/10 4816 days 6%
Carel 8/10 4817 days 6%
Anna 9/10 4818 days 6%
Barrie Corless 9/10 4819 days 6%
Urban Reifler 10/10 4831 days 6%
Lyn Stainton 10/10 4894 days 6%
John & Vicki 8/10 4898 days 6%
jenckes 9/10 4973 days 6%
Debbie Smithers 10/10 5115 days 6%
Julie and Russ Charles 10/10 5139 days 6%
Kevin Wong 10/10 5139 days 6%
Rocipon 8/10 5140 days 6%
Margit and Corein Groenevelt 7/10 5143 days 6%
Richard Dudfield 10/10 5143 days 6%
John Duffy 10/10 5143 days 6%
Richard Gallichan 9/10 5144 days 6%
Jean Barker 8/10 5144 days 6%
Bette Eh 10/10 5146 days 6%
bryfrance 10/10 5147 days 6%
Juliane Kleiu 10/10 5147 days 6%
Claudia 8/10 5147 days 6%
E Brockbank 9/10 5148 days 6%
David Mellard 10/10 5149 days 6%
Bruce & Elaine Chote 10/10 5149 days 6%
Roland Berger 7/10 5150 days 6%
Ross 9/10 5150 days 6%
Gerstmann 9/10 5151 days 6%
Ekhard Wittkugel 10/10 5153 days 6%
Stephen Shearer 10/10 5154 days 6%
Monika 10/10 5155 days 6%
Betten 9/10 5156 days 6%
Stephen Jones 9/10 5157 days 6%
Mike and Diane Baker 10/10 5158 days 6%
Lenore Dejong 10/10 5159 days 6%
Andreas Fritesche 8/10 5160 days 6%
Matthys Kikke 9/10 5161 days 6%
Bucher Weruer 10/10 5161 days 6%
Camilla Andersson 7/10 5162 days 6%
Bob Adams 10/10 5169 days 6%
John 8/10 5169 days 6%
Katie Nicol 10/10 5170 days 6%
Martin Current 9/10 5172 days 6%
Teum and Orselien 8/10 5173 days 6%
Vanderhorst 8/10 5173 days 6%
John Price 9/10 5175 days 6%
Doris Schollenberger 10/10 5175 days 6%
Phil Hunter 9/10 5176 days 6%
Chris 8/10 5177 days 6%
Gordon Daniels 8/10 5180 days 6%
Hull 9/10 5180 days 6%
Lizzie 10/10 5247 days 6%
allesca 10/10 5277 days 6%
M Schram 8/10 5440 days 6%
Versteeg 9/10 5443 days 6%
Lomas 10/10 5452 days 6%
Maureen 10/10 5456 days 6%
Amy 9/10 5461 days 6%
Don & Geraldine 10/10 5497 days 6%
Hans and Astrid 10/10 5499 days 6%
Agnes 10/10 5501 days 6%
maggie Webster 10/10 5508 days 6%
Keita-Karen Buchanan 10/10 5508 days 6%
Lars Taarnhoej 7/10 5508 days 6%
markus Brandenberger 10/10 5509 days 6%
Jvjm Family 9/10 5510 days 6%
David B 7/10 5517 days 6%
Margaret O'Sullivan 8/10 5517 days 6%
Chris el capitan 9/10 5527 days 6%
John Cox 9/10 5528 days 6%
Muller Weissert 8/10 5529 days 6%
Brian Morris 9/10 5531 days 6%
Jobbs 10/10 5531 days 6%
Maria Newton 9/10 5532 days 6%
Dieter Groscurth 8/10 5532 days 6%
Gordon and Joyce 9/10 5532 days 6%
Remko Ebbens 9/10 5535 days 6%
Thijs Schoemaker 8/10 5536 days 6%
Armand 5/10 5536 days 5%
Ferth 10/10 5536 days 6%
J Kempeneers 10/10 5536 days 6%
Thea X 5/10 5545 days 5%
Keith Wilde 10/10 5545 days 6%
Dick Rosman 9/10 5546 days 6%
Terry Phillips 5/10 5547 days 5%
Jules 8/10 5547 days 6%
Carl Diehl 9/10 5548 days 6%
Paul Schoepfer 9/10 5548 days 6%
Uwe Rieper 10/10 5549 days 6%
Yvonne Ing 10/10 5549 days 6%
Diane Chapple 9/10 5549 days 6%
wannab 9/10 5550 days 6%
Kevin and Teresa 9/10 5550 days 6%
Christiane Lindenberg 9/10 5559 days 6%
Nigel Armstrong 9/10 5561 days 6%
Buss 10/10 5563 days 6%
John J 9/10 5564 days 6%
Heinrich Hax 10/10 5570 days 6%
marcusba 8/10 5593 days 6%
tanh 9/10 5597 days 6%
mariak 7/10 5598 days 6%
Silvana Thom 10/10 5622 days 6%
Wolfgang Dittrich 10/10 5622 days 6%
Chris Bulman 10/10 5623 days 6%
andyge 8/10 5642 days 6%
Ritag 9/10 5728 days 6%
regw 10/10 5732 days 6%
Cate 9/10 5856 days 6%
ginekek 9/10 5856 days 6%
geoffelizabeth 9/10 5856 days 6%
mikestep 9/10 5856 days 6%
EllenorO 10/10 5856 days 6%
Van Lent 9/10 5858 days 6%
Anna 10/10 5858 days 6%
Mike 9/10 5860 days 6%
Richard 10/10 5866 days 6%
Michael Walsall 10/10 5866 days 6%
AstridVG 8/10 5872 days 6%
Christine 9/10 5872 days 6%
Peter 9/10 5872 days 6%
DimitriD 5/10 5873 days 5%
Kitty 9/10 5873 days 6%
Max 10/10 5875 days 6%
Andy Baker 9/10 5876 days 6%
Francesca Sabat 8/10 5878 days 6%
Robert 10/10 5887 days 6%
Melissa Gillespie 10/10 5887 days 6%
Hetty 9/10 5888 days 6%
Charles 7/10 5889 days 6%
Byleveld 8/10 5889 days 6%
JoseB 8/10 5890 days 6%
MrHebbard 10/10 5890 days 6%
ChristineM 10/10 5890 days 6%
Elrik frau 10/10 5890 days 6%
Louise 9/10 5897 days 6%
Douglas 9/10 5898 days 6%
CSander 9/10 5914 days 6%
Patricia 8/10 5924 days 6%
Dijk 8/10 5928 days 6%
Josefine 10/10 5928 days 6%
Ducolq 5/10 5928 days 5%
Jacques 8/10 5929 days 6%
Carina 8/10 5935 days 6%
Michael 9/10 5966 days 6%
silvia 8/10 5969 days 6%
Anouk 8/10 5969 days 6%
Mat 9/10 5973 days 6%
Paul 8/10 6020 days 6%
Helga 9/10 6031 days 6%
Mikel 9/10 6096 days 6%
Christine 6/10 6104 days 5%
Jim Summers 9/10 6105 days 6%
Franz 7/10 6227 days 6%
Linda and Peter 10/10 6235 days 6%
Mike and Judy 8/10 6236 days 6%
Methers 9/10 6236 days 6%
Denise 10/10 6239 days 6%
Kavanagh 8/10 6239 days 6%
De Wijn 8/10 6242 days 6%
Lisa Jones 9/10 6243 days 6%
Christian 9/10 6243 days 6%
Soren Danning 8/10 6243 days 6%
Jones 10/10 6247 days 6%
Orla Hansen 10/10 6248 days 6%
Bauer 10/10 6254 days 6%
Aharon 10/10 6254 days 6%
D.A. Mulder 9/10 6255 days 6%
Jurg Meister 8/10 6256 days 6%
Sally and David Wallis 10/10 6256 days 6%
Knol 9/10 6257 days 6%
Sue Randall 8/10 6260 days 6%
Cole Penelope 10/10 6260 days 6%
Blenkoe 6/10 6261 days 5%
Erwin de Kleijn 8/10 6261 days 6%
Thomas 9/10 6270 days 6%
Bex 10/10 6283 days 6%
Van Hoof 9/10 6296 days 6%
Tim 10/10 6296 days 6%
Gabriel Faber 9/10 6331 days 6%
Jonkers 9/10 6333 days 6%
Edwin 10/10 6337 days 6%
Lyn Saxon 10/10 6341 days 6%
Wendy Williams 10/10 6348 days 6%
Hans Knappmann 10/10 6458 days 6%
Phillipa 10/10 6566 days 6%
Stefan&Gerte 9/10 6580 days 6%
Cat 9/10 6586 days 6%
TeamFlorida 10/10 6593 days 6%
Jo 9/10 6593 days 6%
Fenke 9/10 6598 days 6%
Bas 9/10 6598 days 6%
Martin Smith 9/10 6603 days 6%
John Beirne 9/10 6610 days 6%
Palle 9/10 6615 days 6%
Anna 9/10 6615 days 6%
Svenja 10/10 6621 days 6%
Shirely 10/10 6621 days 6%
Rogier 8/10 6622 days 6%
Wendy 8/10 6626 days 6%
Kerry 10/10 6631 days 6%
Henrich 10/10 6631 days 6%
Messing 10/10 6634 days 6%
Rolf Kruger 10/10 6634 days 6%
Ian 8/10 6638 days 6%
Peter 9/10 6638 days 6%
Brian 10/10 6638 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

-3.51% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 64 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 -3.45%
198 -3.47%
199 -3.49%
200 -3.51%
201 -3.52%
202 -3.54%
203 -3.56%
… …

Balancing Adjustment

1.55% 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

88%

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.