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

282 Valid Reviews

The Doubtful Sound Day Cruise experience has a total of 284 reviews. There are 282 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 282 valid reviews:

Rating Count Percentage
10/10 103
37%
9/10 93
33%
8/10 55
20%
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%

88.48% Average

The raw data average (mean) for all the Doubtful Sound Day Cruise valid reviews is 88.48% and is based on 282 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 282 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

91.22%

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
Joanne&Ian 10/10 49 days 100%
Geoff Steele 8/10 1325 days 4%
Axel and Patricia G 6/10 1514 days 3%
Leonie Westerhot 8/10 1586 days 4%
Ivanova R 9/10 1843 days 3%
Lorenz Pfisterer 10/10 1855 days 3%
Heidi et Mat 8/10 1864 days 3%
Anke Vater 10/10 1865 days 3%
Anouk Jongsma 9/10 1873 days 3%
Robin WUERFEL 9/10 1945 days 3%
Helen Parsons 10/10 2265 days 2%
Peter Beeloo 9/10 2268 days 2%
Laurent Arditi 9/10 2453 days 2%
Sheila Galpin 9/10 2604 days 2%
Simon Galpin 9/10 2604 days 2%
Douglas Dean 10/10 2606 days 2%
Stina Hultberg 4/10 2610 days 1%
Alexander Zimmer 7/10 2611 days 2%
Linus Larsson 3/10 2612 days 1%
Leon Courtney 10/10 2613 days 2%
Libby 10/10 2627 days 2%
Colin Billington 7/10 2628 days 2%
Don Wallis 10/10 2631 days 2%
Bill 7/10 2632 days 2%
Saskia 5/10 2632 days 1%
Terry Seaman 8/10 2634 days 2%
S B 10/10 2647 days 2%
M K 10/10 2647 days 2%
Alacchi Moustier 10/10 2647 days 2%
Maya Bakker-deDreu 8/10 2655 days 2%
Stuart Wilson 8/10 2661 days 2%
Fabian Lee 5/10 2664 days 1%
paul beacock 10/10 2665 days 2%
Gal Bero 10/10 2668 days 2%
Elly Zimmer 6/10 2672 days 1%
Bjorn Van Mulders 10/10 2675 days 2%
Kim Maertens 9/10 2675 days 2%
Steve Warren 10/10 2787 days 1%
hendrik king 7/10 2879 days 1%
Peter Jolliffe 10/10 2971 days 1%
Helen Dean 10/10 2971 days 1%
Dave Mertzig 10/10 2971 days 1%
Kathryn Pisco 9/10 2977 days 1%
Mike Pisco 9/10 2977 days 1%
Sebastian and Peter Beate 10/10 2994 days 1%
Fraser Goldsmith 8/10 2995 days 1%
Bucher 9/10 3046 days 1%
Marieke 8/10 3047 days 1%
Chew (Peter) 7/10 3052 days 1%
Natalie Nubler 6/10 3053 days 1%
Frans Derks 9/10 3054 days 1%
Meryem Buchwitz 9/10 3074 days 1%
roos wubben 9/10 3077 days 1%
Dagette 9/10 3122 days 1%
Teri C 10/10 3152 days 1%
Rob Klauer 5/10 3324 days 0%
Oliver Hardt 9/10 3325 days 0%
Val Phillips 8/10 3329 days 0%
Peter Adams 9/10 3330 days 0%
Harry Ruys 8/10 3332 days 0%
John McAllister 9/10 3333 days 0%
Keith Helen 10/10 3336 days 0%
Daniel Patricia 9/10 3339 days 0%
Laura Diepeveen 8/10 3341 days 0%
Fries 10/10 3345 days 0%
Karin Laurev 10/10 3345 days 0%
Gillian Rowe 9/10 3346 days 0%
Nigel Horrocks 7/10 3346 days 0%
Dieter Mangold 10/10 3348 days 0%
Lyn Deavin 8/10 3348 days 0%
Sabine & Stefan 10/10 3349 days 0%
Randewyk 8/10 3349 days 0%
Koster 6/10 3351 days 0%
Peter Aertssen 7/10 3351 days 0%
John A Jerome 8/10 3351 days 0%
Lynn Robinson 10/10 3357 days 0%
Heike 9/10 3360 days 0%
Robert MacLeod-Smith 8/10 3361 days 0%
Carel 8/10 3362 days 0%
Anna 9/10 3363 days 0%
Barrie Corless 9/10 3364 days 0%
Urban Reifler 10/10 3376 days 0%
Lyn Stainton 10/10 3439 days 0%
John & Vicki 8/10 3443 days 0%
jenckes 9/10 3518 days 0%
Debbie Smithers 10/10 3660 days 1%
Julie and Russ Charles 10/10 3684 days 1%
Kevin Wong 10/10 3684 days 1%
Rocipon 8/10 3685 days 1%
Margit and Corein Groenevelt 7/10 3688 days 1%
Richard Dudfield 10/10 3688 days 1%
John Duffy 10/10 3688 days 1%
Richard Gallichan 9/10 3689 days 1%
Jean Barker 8/10 3689 days 1%
Bette Eh 10/10 3691 days 1%
bryfrance 10/10 3692 days 1%
Juliane Kleiu 10/10 3692 days 1%
Claudia 8/10 3692 days 1%
E Brockbank 9/10 3693 days 1%
David Mellard 10/10 3694 days 1%
Bruce & Elaine Chote 10/10 3694 days 1%
Roland Berger 7/10 3695 days 1%
Ross 9/10 3695 days 1%
Gerstmann 9/10 3696 days 1%
Ekhard Wittkugel 10/10 3698 days 1%
Stephen Shearer 10/10 3699 days 1%
Monika 10/10 3700 days 1%
Betten 9/10 3701 days 1%
Stephen Jones 9/10 3702 days 1%
Mike and Diane Baker 10/10 3703 days 1%
Lenore Dejong 10/10 3704 days 1%
Andreas Fritesche 8/10 3705 days 1%
Matthys Kikke 9/10 3706 days 1%
Bucher Weruer 10/10 3706 days 1%
Camilla Andersson 7/10 3707 days 1%
Bob Adams 10/10 3714 days 1%
John 8/10 3714 days 1%
Katie Nicol 10/10 3715 days 1%
Martin Current 9/10 3717 days 1%
Teum and Orselien 8/10 3718 days 1%
Vanderhorst 8/10 3718 days 1%
John Price 9/10 3720 days 1%
Doris Schollenberger 10/10 3720 days 1%
Phil Hunter 9/10 3721 days 1%
Chris 8/10 3722 days 1%
Gordon Daniels 8/10 3725 days 1%
Hull 9/10 3725 days 1%
Lizzie 10/10 3792 days 1%
allesca 10/10 3822 days 1%
M Schram 8/10 3985 days 1%
Versteeg 9/10 3988 days 1%
Lomas 10/10 3997 days 1%
Maureen 10/10 4001 days 1%
Amy 9/10 4006 days 1%
Don & Geraldine 10/10 4042 days 1%
Hans and Astrid 10/10 4044 days 1%
Agnes 10/10 4046 days 1%
maggie Webster 10/10 4053 days 1%
Keita-Karen Buchanan 10/10 4053 days 1%
Lars Taarnhoej 7/10 4053 days 1%
markus Brandenberger 10/10 4054 days 1%
Jvjm Family 9/10 4055 days 1%
David B 7/10 4062 days 1%
Margaret O'Sullivan 8/10 4062 days 1%
Chris el capitan 9/10 4072 days 1%
John Cox 9/10 4073 days 1%
Muller Weissert 8/10 4074 days 1%
Brian Morris 9/10 4076 days 1%
Jobbs 10/10 4076 days 1%
Maria Newton 9/10 4077 days 1%
Dieter Groscurth 8/10 4077 days 1%
Gordon and Joyce 9/10 4077 days 1%
Remko Ebbens 9/10 4080 days 1%
Thijs Schoemaker 8/10 4081 days 1%
Armand 5/10 4081 days 1%
Ferth 10/10 4081 days 1%
J Kempeneers 10/10 4081 days 1%
Thea X 5/10 4090 days 1%
Keith Wilde 10/10 4090 days 1%
Dick Rosman 9/10 4091 days 1%
Terry Phillips 5/10 4092 days 1%
Jules 8/10 4092 days 1%
Carl Diehl 9/10 4093 days 1%
Paul Schoepfer 9/10 4093 days 1%
Uwe Rieper 10/10 4094 days 1%
Yvonne Ing 10/10 4094 days 1%
Diane Chapple 9/10 4094 days 1%
wannab 9/10 4095 days 1%
Kevin and Teresa 9/10 4095 days 1%
Christiane Lindenberg 9/10 4104 days 1%
Nigel Armstrong 9/10 4106 days 1%
Buss 10/10 4108 days 1%
John J 9/10 4109 days 1%
Heinrich Hax 10/10 4115 days 1%
marcusba 8/10 4138 days 1%
tanh 9/10 4142 days 1%
mariak 7/10 4143 days 1%
Silvana Thom 10/10 4167 days 1%
Wolfgang Dittrich 10/10 4167 days 1%
Chris Bulman 10/10 4168 days 1%
andyge 8/10 4187 days 1%
Ritag 9/10 4273 days 1%
regw 10/10 4277 days 1%
Cate 9/10 4400 days 1%
ginekek 9/10 4401 days 1%
geoffelizabeth 9/10 4401 days 1%
mikestep 9/10 4401 days 1%
EllenorO 10/10 4401 days 1%
Van Lent 9/10 4402 days 1%
Anna 10/10 4402 days 1%
Mike 9/10 4405 days 1%
Richard 10/10 4410 days 1%
Michael Walsall 10/10 4410 days 1%
AstridVG 8/10 4417 days 1%
Christine 9/10 4417 days 1%
Peter 9/10 4417 days 1%
DimitriD 5/10 4418 days 1%
Kitty 9/10 4418 days 1%
Max 10/10 4420 days 1%
Andy Baker 9/10 4421 days 1%
Francesca Sabat 8/10 4423 days 1%
Robert 10/10 4431 days 1%
Melissa Gillespie 10/10 4432 days 1%
Hetty 9/10 4432 days 1%
Charles 7/10 4433 days 1%
Byleveld 8/10 4434 days 1%
JoseB 8/10 4435 days 1%
MrHebbard 10/10 4435 days 1%
ChristineM 10/10 4435 days 1%
Elrik frau 10/10 4435 days 1%
Louise 9/10 4441 days 1%
Douglas 9/10 4442 days 1%
CSander 9/10 4459 days 1%
Patricia 8/10 4469 days 1%
Dijk 8/10 4473 days 1%
Josefine 10/10 4473 days 1%
Ducolq 5/10 4473 days 1%
Jacques 8/10 4474 days 1%
Carina 8/10 4479 days 1%
Michael 9/10 4511 days 1%
silvia 8/10 4513 days 1%
Anouk 8/10 4513 days 1%
Mat 9/10 4518 days 1%
Paul 8/10 4564 days 1%
Helga 9/10 4575 days 1%
Mikel 9/10 4640 days 1%
Christine 6/10 4649 days 1%
Jim Summers 9/10 4649 days 1%
Franz 7/10 4772 days 1%
Linda and Peter 10/10 4780 days 1%
Mike and Judy 8/10 4781 days 1%
Methers 9/10 4781 days 1%
Denise 10/10 4784 days 1%
Kavanagh 8/10 4784 days 1%
De Wijn 8/10 4787 days 1%
Lisa Jones 9/10 4788 days 1%
Christian 9/10 4788 days 1%
Soren Danning 8/10 4788 days 1%
Jones 10/10 4792 days 1%
Orla Hansen 10/10 4793 days 1%
Bauer 10/10 4799 days 1%
Aharon 10/10 4799 days 1%
D.A. Mulder 9/10 4800 days 1%
Jurg Meister 8/10 4801 days 1%
Sally and David Wallis 10/10 4801 days 1%
Knol 9/10 4802 days 1%
Sue Randall 8/10 4805 days 1%
Cole Penelope 10/10 4805 days 1%
Blenkoe 6/10 4806 days 1%
Erwin de Kleijn 8/10 4806 days 1%
Thomas 9/10 4815 days 1%
Bex 10/10 4828 days 1%
Van Hoof 9/10 4841 days 1%
Tim 10/10 4841 days 1%
Gabriel Faber 9/10 4876 days 1%
Jonkers 9/10 4878 days 1%
Edwin 10/10 4882 days 1%
Lyn Saxon 10/10 4886 days 1%
Wendy Williams 10/10 4893 days 1%
Hans Knappmann 10/10 5003 days 1%
Phillipa 10/10 5111 days 1%
Stefan&Gerte 9/10 5125 days 1%
Cat 9/10 5131 days 1%
TeamFlorida 10/10 5138 days 1%
Jo 9/10 5138 days 1%
Fenke 9/10 5143 days 1%
Bas 9/10 5143 days 1%
Martin Smith 9/10 5148 days 1%
John Beirne 9/10 5155 days 1%
Palle 9/10 5160 days 1%
Anna 9/10 5160 days 1%
Svenja 10/10 5166 days 1%
Shirely 10/10 5166 days 1%
Rogier 8/10 5167 days 1%
Wendy 8/10 5171 days 1%
Kerry 10/10 5176 days 1%
Henrich 10/10 5176 days 1%
Messing 10/10 5179 days 1%
Rolf Kruger 10/10 5179 days 1%
Ian 8/10 5183 days 1%
Peter 9/10 5183 days 1%
Brian 10/10 5183 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

-0.71% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 68 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 42 days. Adjustments are according to the following table.

Days Adjustment
39 -0.66%
40 -0.68%
41 -0.69%
42 -0.71%
43 -0.73%
44 -0.74%
45 -0.76%

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.