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

93.13%

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 10/10 116 days 100%
Joanne&Ian 10/10 208 days 95%
Geoff Steele 8/10 1485 days 4%
Axel and Patricia G 6/10 1673 days 3%
Leonie Westerhot 8/10 1745 days 4%
Ivanova R 9/10 2002 days 3%
Lorenz Pfisterer 10/10 2014 days 3%
Heidi et Mat 8/10 2023 days 3%
Anke Vater 10/10 2024 days 3%
Anouk Jongsma 9/10 2032 days 3%
Robin WUERFEL 9/10 2104 days 3%
Helen Parsons 10/10 2424 days 2%
Peter Beeloo 9/10 2428 days 2%
Laurent Arditi 9/10 2612 days 2%
Sheila Galpin 9/10 2763 days 2%
Simon Galpin 9/10 2763 days 2%
Douglas Dean 10/10 2765 days 2%
Stina Hultberg 4/10 2769 days 1%
Alexander Zimmer 7/10 2770 days 2%
Linus Larsson 3/10 2771 days 1%
Leon Courtney 10/10 2772 days 2%
Libby 10/10 2786 days 2%
Colin Billington 7/10 2787 days 1%
Don Wallis 10/10 2790 days 2%
Bill 7/10 2791 days 1%
Saskia 5/10 2791 days 1%
Terry Seaman 8/10 2793 days 2%
S B 10/10 2806 days 2%
M K 10/10 2806 days 2%
Alacchi Moustier 10/10 2806 days 2%
Maya Bakker-deDreu 8/10 2814 days 1%
Stuart Wilson 8/10 2820 days 1%
Fabian Lee 5/10 2823 days 1%
paul beacock 10/10 2824 days 2%
Gal Bero 10/10 2827 days 2%
Elly Zimmer 6/10 2831 days 1%
Bjorn Van Mulders 10/10 2834 days 2%
Kim Maertens 9/10 2834 days 2%
Steve Warren 10/10 2946 days 1%
hendrik king 7/10 3038 days 1%
Peter Jolliffe 10/10 3130 days 1%
Helen Dean 10/10 3130 days 1%
Dave Mertzig 10/10 3130 days 1%
Kathryn Pisco 9/10 3136 days 1%
Mike Pisco 9/10 3136 days 1%
Sebastian and Peter Beate 10/10 3153 days 1%
Fraser Goldsmith 8/10 3154 days 1%
Bucher 9/10 3205 days 1%
Marieke 8/10 3206 days 1%
Chew (Peter) 7/10 3211 days 1%
Natalie Nubler 6/10 3212 days 1%
Frans Derks 9/10 3213 days 1%
Meryem Buchwitz 9/10 3233 days 1%
roos wubben 9/10 3236 days 1%
Dagette 9/10 3281 days 1%
Teri C 10/10 3311 days 1%
Rob Klauer 5/10 3483 days 0%
Oliver Hardt 9/10 3484 days 0%
Val Phillips 8/10 3488 days 0%
Peter Adams 9/10 3489 days 0%
Harry Ruys 8/10 3491 days 0%
John McAllister 9/10 3492 days 0%
Keith Helen 10/10 3495 days 0%
Daniel Patricia 9/10 3498 days 0%
Laura Diepeveen 8/10 3500 days 0%
Fries 10/10 3504 days 0%
Karin Laurev 10/10 3504 days 0%
Gillian Rowe 9/10 3505 days 0%
Nigel Horrocks 7/10 3505 days 0%
Dieter Mangold 10/10 3507 days 0%
Lyn Deavin 8/10 3507 days 0%
Sabine & Stefan 10/10 3508 days 0%
Randewyk 8/10 3508 days 0%
Koster 6/10 3510 days 0%
Peter Aertssen 7/10 3510 days 0%
John A Jerome 8/10 3510 days 0%
Lynn Robinson 10/10 3516 days 0%
Heike 9/10 3519 days 0%
Robert MacLeod-Smith 8/10 3520 days 0%
Carel 8/10 3521 days 0%
Anna 9/10 3522 days 0%
Barrie Corless 9/10 3523 days 0%
Urban Reifler 10/10 3535 days 0%
Lyn Stainton 10/10 3598 days 0%
John & Vicki 8/10 3602 days 0%
jenckes 9/10 3677 days 1%
Debbie Smithers 10/10 3819 days 1%
Julie and Russ Charles 10/10 3843 days 1%
Kevin Wong 10/10 3843 days 1%
Rocipon 8/10 3844 days 1%
Margit and Corein Groenevelt 7/10 3847 days 1%
Richard Dudfield 10/10 3847 days 1%
John Duffy 10/10 3847 days 1%
Richard Gallichan 9/10 3848 days 1%
Jean Barker 8/10 3848 days 1%
Bette Eh 10/10 3850 days 1%
bryfrance 10/10 3851 days 1%
Juliane Kleiu 10/10 3851 days 1%
Claudia 8/10 3851 days 1%
E Brockbank 9/10 3852 days 1%
David Mellard 10/10 3853 days 1%
Bruce & Elaine Chote 10/10 3853 days 1%
Roland Berger 7/10 3854 days 1%
Ross 9/10 3854 days 1%
Gerstmann 9/10 3855 days 1%
Ekhard Wittkugel 10/10 3857 days 1%
Stephen Shearer 10/10 3858 days 1%
Monika 10/10 3859 days 1%
Betten 9/10 3860 days 1%
Stephen Jones 9/10 3861 days 1%
Mike and Diane Baker 10/10 3862 days 1%
Lenore Dejong 10/10 3863 days 1%
Andreas Fritesche 8/10 3864 days 1%
Matthys Kikke 9/10 3865 days 1%
Bucher Weruer 10/10 3865 days 1%
Camilla Andersson 7/10 3866 days 1%
Bob Adams 10/10 3873 days 1%
John 8/10 3873 days 1%
Katie Nicol 10/10 3874 days 1%
Martin Current 9/10 3876 days 1%
Teum and Orselien 8/10 3877 days 1%
Vanderhorst 8/10 3877 days 1%
John Price 9/10 3879 days 1%
Doris Schollenberger 10/10 3879 days 1%
Phil Hunter 9/10 3880 days 1%
Chris 8/10 3881 days 1%
Gordon Daniels 8/10 3884 days 1%
Hull 9/10 3884 days 1%
Lizzie 10/10 3951 days 1%
allesca 10/10 3981 days 1%
M Schram 8/10 4144 days 1%
Versteeg 9/10 4147 days 1%
Lomas 10/10 4156 days 1%
Maureen 10/10 4160 days 1%
Amy 9/10 4165 days 1%
Don & Geraldine 10/10 4201 days 1%
Hans and Astrid 10/10 4203 days 1%
Agnes 10/10 4205 days 1%
maggie Webster 10/10 4212 days 1%
Keita-Karen Buchanan 10/10 4212 days 1%
Lars Taarnhoej 7/10 4212 days 1%
markus Brandenberger 10/10 4213 days 1%
Jvjm Family 9/10 4214 days 1%
David B 7/10 4221 days 1%
Margaret O'Sullivan 8/10 4221 days 1%
Chris el capitan 9/10 4231 days 1%
John Cox 9/10 4232 days 1%
Muller Weissert 8/10 4233 days 1%
Brian Morris 9/10 4235 days 1%
Jobbs 10/10 4235 days 1%
Maria Newton 9/10 4236 days 1%
Dieter Groscurth 8/10 4236 days 1%
Gordon and Joyce 9/10 4236 days 1%
Remko Ebbens 9/10 4239 days 1%
Thijs Schoemaker 8/10 4240 days 1%
Armand 5/10 4240 days 1%
Ferth 10/10 4240 days 1%
J Kempeneers 10/10 4240 days 1%
Thea X 5/10 4249 days 1%
Keith Wilde 10/10 4249 days 1%
Dick Rosman 9/10 4250 days 1%
Terry Phillips 5/10 4251 days 1%
Jules 8/10 4251 days 1%
Carl Diehl 9/10 4252 days 1%
Paul Schoepfer 9/10 4252 days 1%
Uwe Rieper 10/10 4253 days 1%
Yvonne Ing 10/10 4253 days 1%
Diane Chapple 9/10 4253 days 1%
wannab 9/10 4254 days 1%
Kevin and Teresa 9/10 4254 days 1%
Christiane Lindenberg 9/10 4263 days 1%
Nigel Armstrong 9/10 4265 days 1%
Buss 10/10 4267 days 1%
John J 9/10 4268 days 1%
Heinrich Hax 10/10 4274 days 1%
marcusba 8/10 4297 days 1%
tanh 9/10 4301 days 1%
mariak 7/10 4302 days 1%
Silvana Thom 10/10 4326 days 1%
Wolfgang Dittrich 10/10 4326 days 1%
Chris Bulman 10/10 4327 days 1%
andyge 8/10 4346 days 1%
Ritag 9/10 4432 days 1%
regw 10/10 4436 days 1%
Cate 9/10 4560 days 1%
ginekek 9/10 4560 days 1%
geoffelizabeth 9/10 4560 days 1%
mikestep 9/10 4560 days 1%
EllenorO 10/10 4561 days 1%
Van Lent 9/10 4562 days 1%
Anna 10/10 4562 days 1%
Mike 9/10 4565 days 1%
Richard 10/10 4570 days 1%
Michael Walsall 10/10 4570 days 1%
AstridVG 8/10 4577 days 1%
Christine 9/10 4577 days 1%
Peter 9/10 4577 days 1%
DimitriD 5/10 4577 days 1%
Kitty 9/10 4577 days 1%
Max 10/10 4580 days 1%
Andy Baker 9/10 4580 days 1%
Francesca Sabat 8/10 4582 days 1%
Robert 10/10 4591 days 1%
Melissa Gillespie 10/10 4591 days 1%
Hetty 9/10 4592 days 1%
Charles 7/10 4593 days 1%
Byleveld 8/10 4593 days 1%
JoseB 8/10 4594 days 1%
MrHebbard 10/10 4594 days 1%
ChristineM 10/10 4594 days 1%
Elrik frau 10/10 4594 days 1%
Louise 9/10 4601 days 1%
Douglas 9/10 4602 days 1%
CSander 9/10 4618 days 1%
Patricia 8/10 4629 days 1%
Dijk 8/10 4633 days 1%
Josefine 10/10 4633 days 1%
Ducolq 5/10 4633 days 1%
Jacques 8/10 4634 days 1%
Carina 8/10 4639 days 1%
Michael 9/10 4670 days 1%
silvia 8/10 4673 days 1%
Anouk 8/10 4673 days 1%
Mat 9/10 4678 days 1%
Paul 8/10 4724 days 1%
Helga 9/10 4735 days 1%
Mikel 9/10 4800 days 1%
Christine 6/10 4809 days 1%
Jim Summers 9/10 4809 days 1%
Franz 7/10 4931 days 1%
Linda and Peter 10/10 4939 days 1%
Mike and Judy 8/10 4940 days 1%
Methers 9/10 4940 days 1%
Denise 10/10 4943 days 1%
Kavanagh 8/10 4943 days 1%
De Wijn 8/10 4946 days 1%
Lisa Jones 9/10 4947 days 1%
Christian 9/10 4947 days 1%
Soren Danning 8/10 4947 days 1%
Jones 10/10 4951 days 1%
Orla Hansen 10/10 4952 days 1%
Bauer 10/10 4958 days 1%
Aharon 10/10 4958 days 1%
D.A. Mulder 9/10 4959 days 1%
Jurg Meister 8/10 4960 days 1%
Sally and David Wallis 10/10 4960 days 1%
Knol 9/10 4961 days 1%
Sue Randall 8/10 4964 days 1%
Cole Penelope 10/10 4964 days 1%
Blenkoe 6/10 4965 days 1%
Erwin de Kleijn 8/10 4965 days 1%
Thomas 9/10 4974 days 1%
Bex 10/10 4988 days 1%
Van Hoof 9/10 5000 days 1%
Tim 10/10 5000 days 1%
Gabriel Faber 9/10 5035 days 1%
Jonkers 9/10 5037 days 1%
Edwin 10/10 5041 days 1%
Lyn Saxon 10/10 5045 days 1%
Wendy Williams 10/10 5052 days 1%
Hans Knappmann 10/10 5162 days 1%
Phillipa 10/10 5270 days 1%
Stefan&Gerte 9/10 5284 days 1%
Cat 9/10 5290 days 1%
TeamFlorida 10/10 5297 days 1%
Jo 9/10 5297 days 1%
Fenke 9/10 5302 days 1%
Bas 9/10 5302 days 1%
Martin Smith 9/10 5307 days 1%
John Beirne 9/10 5314 days 1%
Palle 9/10 5319 days 1%
Anna 9/10 5319 days 1%
Svenja 10/10 5325 days 1%
Shirely 10/10 5325 days 1%
Rogier 8/10 5326 days 1%
Wendy 8/10 5330 days 1%
Kerry 10/10 5335 days 1%
Henrich 10/10 5335 days 1%
Messing 10/10 5338 days 1%
Rolf Kruger 10/10 5338 days 1%
Ian 8/10 5342 days 1%
Peter 9/10 5342 days 1%
Brian 10/10 5342 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

-1.70% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 71 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 108 days. Adjustments are according to the following table.

Days Adjustment
105 -1.65%
106 -1.66%
107 -1.68%
108 -1.70%
109 -1.71%
110 -1.73%
111 -1.74%

Final Ranking Score

91%

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.