Ranking Score Explained

Hi there, 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.

Nick Morrison's avatar

Nick Morrison

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

93.16%

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 10/10 237 days 100%
Joanne&Ian 10/10 329 days 91%
Geoff Steele 8/10 1605 days 4%
Axel and Patricia G 6/10 1794 days 3%
Leonie Westerhot 8/10 1866 days 4%
Ivanova R 9/10 2123 days 3%
Lorenz Pfisterer 10/10 2135 days 3%
Heidi et Mat 8/10 2144 days 3%
Anke Vater 10/10 2145 days 3%
Anouk Jongsma 9/10 2153 days 3%
Robin WUERFEL 9/10 2225 days 3%
Helen Parsons 10/10 2545 days 2%
Peter Beeloo 9/10 2548 days 2%
Laurent Arditi 9/10 2733 days 2%
Sheila Galpin 9/10 2884 days 2%
Simon Galpin 9/10 2884 days 2%
Douglas Dean 10/10 2886 days 2%
Stina Hultberg 4/10 2890 days 1%
Alexander Zimmer 7/10 2891 days 1%
Linus Larsson 3/10 2892 days 1%
Leon Courtney 10/10 2893 days 2%
Libby 10/10 2907 days 2%
Colin Billington 7/10 2908 days 1%
Don Wallis 10/10 2911 days 2%
Bill 7/10 2912 days 1%
Saskia 5/10 2912 days 1%
Terry Seaman 8/10 2914 days 1%
S B 10/10 2927 days 2%
M K 10/10 2927 days 2%
Alacchi Moustier 10/10 2927 days 2%
Maya Bakker-deDreu 8/10 2935 days 1%
Stuart Wilson 8/10 2941 days 1%
Fabian Lee 5/10 2944 days 1%
paul beacock 10/10 2945 days 2%
Gal Bero 10/10 2948 days 1%
Elly Zimmer 6/10 2952 days 1%
Bjorn Van Mulders 10/10 2955 days 1%
Kim Maertens 9/10 2955 days 1%
Steve Warren 10/10 3067 days 1%
hendrik king 7/10 3159 days 1%
Peter Jolliffe 10/10 3251 days 1%
Helen Dean 10/10 3251 days 1%
Dave Mertzig 10/10 3251 days 1%
Kathryn Pisco 9/10 3257 days 1%
Mike Pisco 9/10 3257 days 1%
Sebastian and Peter Beate 10/10 3274 days 1%
Fraser Goldsmith 8/10 3275 days 1%
Bucher 9/10 3326 days 1%
Marieke 8/10 3327 days 1%
Chew (Peter) 7/10 3332 days 1%
Natalie Nubler 6/10 3333 days 1%
Frans Derks 9/10 3334 days 1%
Meryem Buchwitz 9/10 3354 days 1%
roos wubben 9/10 3357 days 1%
Dagette 9/10 3402 days 1%
Teri C 10/10 3432 days 0%
Rob Klauer 5/10 3604 days 0%
Oliver Hardt 9/10 3605 days 0%
Val Phillips 8/10 3609 days 0%
Peter Adams 9/10 3610 days 0%
Harry Ruys 8/10 3612 days 0%
John McAllister 9/10 3613 days 0%
Keith Helen 10/10 3616 days 0%
Daniel Patricia 9/10 3619 days 0%
Laura Diepeveen 8/10 3621 days 0%
Fries 10/10 3625 days 0%
Karin Laurev 10/10 3625 days 0%
Gillian Rowe 9/10 3626 days 0%
Nigel Horrocks 7/10 3626 days 0%
Dieter Mangold 10/10 3628 days 0%
Lyn Deavin 8/10 3628 days 0%
Sabine & Stefan 10/10 3629 days 0%
Randewyk 8/10 3629 days 0%
Koster 6/10 3631 days 0%
Peter Aertssen 7/10 3631 days 0%
John A Jerome 8/10 3631 days 0%
Lynn Robinson 10/10 3637 days 0%
Heike 9/10 3640 days 0%
Robert MacLeod-Smith 8/10 3641 days 0%
Carel 8/10 3642 days 0%
Anna 9/10 3643 days 0%
Barrie Corless 9/10 3644 days 0%
Urban Reifler 10/10 3656 days 1%
Lyn Stainton 10/10 3719 days 1%
John & Vicki 8/10 3723 days 1%
jenckes 9/10 3798 days 1%
Debbie Smithers 10/10 3940 days 1%
Julie and Russ Charles 10/10 3964 days 1%
Kevin Wong 10/10 3964 days 1%
Rocipon 8/10 3965 days 1%
Margit and Corein Groenevelt 7/10 3968 days 1%
Richard Dudfield 10/10 3968 days 1%
John Duffy 10/10 3968 days 1%
Richard Gallichan 9/10 3969 days 1%
Jean Barker 8/10 3969 days 1%
Bette Eh 10/10 3971 days 1%
bryfrance 10/10 3972 days 1%
Juliane Kleiu 10/10 3972 days 1%
Claudia 8/10 3972 days 1%
E Brockbank 9/10 3973 days 1%
David Mellard 10/10 3974 days 1%
Bruce & Elaine Chote 10/10 3974 days 1%
Roland Berger 7/10 3975 days 1%
Ross 9/10 3975 days 1%
Gerstmann 9/10 3976 days 1%
Ekhard Wittkugel 10/10 3978 days 1%
Stephen Shearer 10/10 3979 days 1%
Monika 10/10 3980 days 1%
Betten 9/10 3981 days 1%
Stephen Jones 9/10 3982 days 1%
Mike and Diane Baker 10/10 3983 days 1%
Lenore Dejong 10/10 3984 days 1%
Andreas Fritesche 8/10 3985 days 1%
Matthys Kikke 9/10 3986 days 1%
Bucher Weruer 10/10 3986 days 1%
Camilla Andersson 7/10 3987 days 1%
Bob Adams 10/10 3994 days 1%
John 8/10 3994 days 1%
Katie Nicol 10/10 3995 days 1%
Martin Current 9/10 3997 days 1%
Teum and Orselien 8/10 3998 days 1%
Vanderhorst 8/10 3998 days 1%
John Price 9/10 4000 days 1%
Doris Schollenberger 10/10 4000 days 1%
Phil Hunter 9/10 4001 days 1%
Chris 8/10 4002 days 1%
Gordon Daniels 8/10 4005 days 1%
Hull 9/10 4005 days 1%
Lizzie 10/10 4072 days 1%
allesca 10/10 4102 days 1%
M Schram 8/10 4265 days 1%
Versteeg 9/10 4268 days 1%
Lomas 10/10 4277 days 1%
Maureen 10/10 4281 days 1%
Amy 9/10 4286 days 1%
Don & Geraldine 10/10 4322 days 1%
Hans and Astrid 10/10 4324 days 1%
Agnes 10/10 4326 days 1%
maggie Webster 10/10 4333 days 1%
Keita-Karen Buchanan 10/10 4333 days 1%
Lars Taarnhoej 7/10 4333 days 1%
markus Brandenberger 10/10 4334 days 1%
Jvjm Family 9/10 4335 days 1%
David B 7/10 4342 days 1%
Margaret O'Sullivan 8/10 4342 days 1%
Chris el capitan 9/10 4352 days 1%
John Cox 9/10 4353 days 1%
Muller Weissert 8/10 4354 days 1%
Brian Morris 9/10 4356 days 1%
Jobbs 10/10 4356 days 1%
Maria Newton 9/10 4357 days 1%
Dieter Groscurth 8/10 4357 days 1%
Gordon and Joyce 9/10 4357 days 1%
Remko Ebbens 9/10 4360 days 1%
Thijs Schoemaker 8/10 4361 days 1%
Armand 5/10 4361 days 1%
Ferth 10/10 4361 days 1%
J Kempeneers 10/10 4361 days 1%
Thea X 5/10 4370 days 1%
Keith Wilde 10/10 4370 days 1%
Dick Rosman 9/10 4371 days 1%
Terry Phillips 5/10 4372 days 1%
Jules 8/10 4372 days 1%
Carl Diehl 9/10 4373 days 1%
Paul Schoepfer 9/10 4373 days 1%
Uwe Rieper 10/10 4374 days 1%
Yvonne Ing 10/10 4374 days 1%
Diane Chapple 9/10 4374 days 1%
wannab 9/10 4375 days 1%
Kevin and Teresa 9/10 4375 days 1%
Christiane Lindenberg 9/10 4384 days 1%
Nigel Armstrong 9/10 4386 days 1%
Buss 10/10 4388 days 1%
John J 9/10 4389 days 1%
Heinrich Hax 10/10 4395 days 1%
marcusba 8/10 4418 days 1%
tanh 9/10 4422 days 1%
mariak 7/10 4423 days 1%
Silvana Thom 10/10 4447 days 1%
Wolfgang Dittrich 10/10 4447 days 1%
Chris Bulman 10/10 4448 days 1%
andyge 8/10 4467 days 1%
Ritag 9/10 4553 days 1%
regw 10/10 4557 days 1%
Cate 9/10 4680 days 1%
ginekek 9/10 4681 days 1%
geoffelizabeth 9/10 4681 days 1%
mikestep 9/10 4681 days 1%
EllenorO 10/10 4681 days 1%
Van Lent 9/10 4682 days 1%
Anna 10/10 4683 days 1%
Mike 9/10 4685 days 1%
Richard 10/10 4690 days 1%
Michael Walsall 10/10 4691 days 1%
AstridVG 8/10 4697 days 1%
Christine 9/10 4697 days 1%
Peter 9/10 4697 days 1%
DimitriD 5/10 4698 days 1%
Kitty 9/10 4698 days 1%
Max 10/10 4700 days 1%
Andy Baker 9/10 4701 days 1%
Francesca Sabat 8/10 4703 days 1%
Robert 10/10 4711 days 1%
Melissa Gillespie 10/10 4712 days 1%
Hetty 9/10 4712 days 1%
Charles 7/10 4713 days 1%
Byleveld 8/10 4714 days 1%
JoseB 8/10 4715 days 1%
MrHebbard 10/10 4715 days 1%
ChristineM 10/10 4715 days 1%
Elrik frau 10/10 4715 days 1%
Louise 9/10 4721 days 1%
Douglas 9/10 4722 days 1%
CSander 9/10 4739 days 1%
Patricia 8/10 4749 days 1%
Dijk 8/10 4753 days 1%
Josefine 10/10 4753 days 1%
Ducolq 5/10 4753 days 1%
Jacques 8/10 4754 days 1%
Carina 8/10 4759 days 1%
Michael 9/10 4791 days 1%
silvia 8/10 4793 days 1%
Anouk 8/10 4793 days 1%
Mat 9/10 4798 days 1%
Paul 8/10 4845 days 1%
Helga 9/10 4855 days 1%
Mikel 9/10 4920 days 1%
Christine 6/10 4929 days 1%
Jim Summers 9/10 4929 days 1%
Franz 7/10 5052 days 1%
Linda and Peter 10/10 5060 days 1%
Mike and Judy 8/10 5061 days 1%
Methers 9/10 5061 days 1%
Denise 10/10 5064 days 1%
Kavanagh 8/10 5064 days 1%
De Wijn 8/10 5067 days 1%
Lisa Jones 9/10 5068 days 1%
Christian 9/10 5068 days 1%
Soren Danning 8/10 5068 days 1%
Jones 10/10 5072 days 1%
Orla Hansen 10/10 5073 days 1%
Bauer 10/10 5079 days 1%
Aharon 10/10 5079 days 1%
D.A. Mulder 9/10 5080 days 1%
Jurg Meister 8/10 5081 days 1%
Sally and David Wallis 10/10 5081 days 1%
Knol 9/10 5082 days 1%
Sue Randall 8/10 5085 days 1%
Cole Penelope 10/10 5085 days 1%
Blenkoe 6/10 5086 days 1%
Erwin de Kleijn 8/10 5086 days 1%
Thomas 9/10 5095 days 1%
Bex 10/10 5108 days 1%
Van Hoof 9/10 5121 days 1%
Tim 10/10 5121 days 1%
Gabriel Faber 9/10 5156 days 1%
Jonkers 9/10 5158 days 1%
Edwin 10/10 5162 days 1%
Lyn Saxon 10/10 5166 days 1%
Wendy Williams 10/10 5173 days 1%
Hans Knappmann 10/10 5283 days 1%
Phillipa 10/10 5391 days 1%
Stefan&Gerte 9/10 5405 days 1%
Cat 9/10 5411 days 1%
TeamFlorida 10/10 5418 days 1%
Jo 9/10 5418 days 1%
Fenke 9/10 5423 days 1%
Bas 9/10 5423 days 1%
Martin Smith 9/10 5428 days 1%
John Beirne 9/10 5435 days 1%
Palle 9/10 5440 days 1%
Anna 9/10 5440 days 1%
Svenja 10/10 5446 days 1%
Shirely 10/10 5446 days 1%
Rogier 8/10 5447 days 1%
Wendy 8/10 5451 days 1%
Kerry 10/10 5456 days 1%
Henrich 10/10 5456 days 1%
Messing 10/10 5459 days 1%
Rolf Kruger 10/10 5459 days 1%
Ian 8/10 5463 days 1%
Peter 9/10 5463 days 1%
Brian 10/10 5463 days 1%

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

-4.12% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 48 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 -4.06%
198 -4.08%
199 -4.10%
200 -4.12%
201 -4.14%
202 -4.16%
203 -4.18%

Final Ranking Score

89%

The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.