Hey, 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 Abel Tasman Sea Shuttle.

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

Abel Tasman Sea Shuttle

Valid Reviews

399 Valid Reviews

The Abel Tasman Sea Shuttle experience has a total of 400 reviews. There are 399 valid reviews that are included when calculating the ranking score and 1 invalid review 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 399 valid reviews:

Rating Count Percentage
10/10 113
28%
9/10 135
34%
8/10 105
26%
7/10 30
8%
6/10 10
3%
5/10 4
1%
4/10 2
1%
3/10 0
0%
2/10 0
0%
1/10 0
0%

87.29% Average

The raw data average (mean) for all the Abel Tasman Sea Shuttle valid reviews is 87.29% and is based on 399 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

385 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 399 valid reviews, the experience has 385 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 385 face-to-face reviews:

Rating Count Percentage
10/10 103
27%
9/10 133
35%
8/10 104
27%
7/10 29
8%
6/10 10
3%
5/10 4
1%
4/10 2
1%
3/10 0
0%
2/10 0
0%
1/10 0
0%

87.01% Average

The raw data average (mean) for all the Abel Tasman Sea Shuttle face-to-face reviews is 87.01% and is based on 385 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

88.14%

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
Mel brown 10/10 1555 days 100%
S Weslake 10/10 2592 days 35%
Wendy 8/10 2990 days 26%
David 9/10 2990 days 26%
DEBBIE LAMBERT 10/10 3001 days 26%
Charlie Friesen 10/10 3046 days 25%
Guenter 10/10 3076 days 25%
Niels 9/10 3085 days 24%
Tom Brien 8/10 3322 days 19%
Carl 9/10 3349 days 18%
Ferry and Carlyn 9/10 3367 days 18%
Virgil Spruit 9/10 3407 days 17%
GONZALEZ ROBERTO 10/10 3473 days 16%
Megan 10/10 3681 days 11%
Felix Holm 7/10 3759 days 8%
Marion and Ralf 9/10 3778 days 9%
Astrid Egesten 4/10 3785 days 4%
Anna Grafenstein 8/10 4018 days 3%
Alisa 10/10 4021 days 3%
Laura 10/10 4021 days 3%
Jan Legein 10/10 4030 days 3%
Veeh Barrington 7/10 4054 days 2%
Rita Hochstiasser 8/10 4078 days 2%
Sue L 10/10 4081 days 2%
Brian 8/10 4173 days 0%
Christin Woelk 9/10 4382 days 7%
Rouquette 7/10 4428 days 6%
Bucher 10/10 4493 days 7%
Tony Hines 9/10 4494 days 7%
Al Stuart 6/10 4495 days 5%
Moorman 7/10 4499 days 6%
Urs Kloter 8/10 4499 days 7%
Brian Howe 10/10 4501 days 7%
Peter 10/10 4501 days 7%
Reinhard Stahl 9/10 4513 days 7%
Reinhard Stahl 9/10 4513 days 7%
Urs Zuercher 10/10 4513 days 7%
Peter Harden 10/10 4513 days 7%
Reijans 9/10 4514 days 7%
Judy 10/10 4517 days 7%
Henzen 8/10 4517 days 7%
Eric and Jen Popma 10/10 4518 days 7%
Stevie 9/10 4520 days 7%
Christian 10/10 4520 days 7%
Frederick Neilsen 6/10 4520 days 5%
John Freeman 10/10 4524 days 7%
Verest 9/10 4524 days 7%
Kali Lohman 7/10 4524 days 6%
Ton Franke 9/10 4524 days 7%
Stefan Roth 9/10 4524 days 7%
Marjo Cousijn 9/10 4525 days 7%
Megan Child 7/10 4525 days 6%
Roshnie 6/10 4538 days 5%
Adrian Weidell 8/10 4713 days 7%
Dovis Heinemann 10/10 4767 days 7%
Mark Westebring 8/10 4770 days 7%
Sally Gordie 8/10 4770 days 7%
Oliver Hardt 8/10 4772 days 7%
Petr Stepanek 10/10 4775 days 7%
Clausen 9/10 4776 days 7%
Val Phillips 9/10 4776 days 7%
Sabrina Germany 6/10 4778 days 5%
Armin Boehmer 8/10 4778 days 7%
Frank Claassen 7/10 4779 days 6%
tmdilly 7/10 4783 days 6%
Wright 8/10 4787 days 7%
B Sluis 8/10 4792 days 7%
Mark Bogton 9/10 4792 days 7%
Karl Brachtl 10/10 4792 days 7%
Michael Stoll 7/10 4793 days 6%
Martin & Dee Bellarby 10/10 4793 days 7%
Patrick Grant 9/10 4793 days 7%
Miina Hyuonen 8/10 4794 days 7%
Peter & Kate Carmichael 8/10 4794 days 7%
Chris 8/10 4794 days 7%
Stam 8/10 4794 days 7%
Nico Schoots 7/10 4794 days 6%
Russell Eames 8/10 4795 days 7%
Annie 8/10 4795 days 7%
R E Webb 8/10 4795 days 7%
Mickey 7/10 4795 days 6%
Cynthia 10/10 4795 days 7%
Rene 10/10 4795 days 7%
Patricia Fearon 8/10 4795 days 7%
Jacques Duyvestijn 8/10 4796 days 7%
Dominique 9/10 4796 days 7%
Russell 9/10 4797 days 7%
M Abbott 9/10 4797 days 7%
Walter & Heidi Baumann 10/10 4797 days 7%
Houter 8/10 4797 days 7%
Diane Moss 8/10 4797 days 7%
Robert McIlraith 10/10 4798 days 7%
Susie Christensen 8/10 4798 days 7%
Nic Roggeman 9/10 4799 days 7%
Thomas & Ruth Hardmeier 10/10 4800 days 7%
de Weijer 8/10 4800 days 7%
Beyeler 10/10 4800 days 7%
Aled 8/10 4801 days 7%
Lynn Robinson 9/10 4804 days 7%
Suzanne van Kol 9/10 4805 days 7%
Schweiger 10/10 4807 days 7%
Rowena and Ian Lanyon 9/10 4807 days 7%
Robert MacLeod-Smith 8/10 4808 days 7%
Soren Storeboerg 8/10 4809 days 7%
Steve Collier 9/10 4811 days 7%
Dick van Doorn 8/10 4811 days 7%
Heini 8/10 4811 days 7%
Barrie Corless 9/10 4811 days 7%
Stig Domander 9/10 4825 days 7%
Rhi 10/10 4843 days 7%
Tobias Forst 8/10 4875 days 7%
Arnoldus Bergmans 9/10 4878 days 7%
Dirk Faupel 9/10 4878 days 7%
Dirk Faupel 9/10 4878 days 7%
Chris Muller 8/10 4878 days 7%
Jo Delbrugge 9/10 4878 days 7%
Sarah and Soren 9/10 4880 days 7%
van Rees 9/10 4883 days 7%
Robin & Sandra Dijke 8/10 4883 days 7%
Jan & Marian 9/10 4886 days 7%
David & Mary-Jane Ryder 10/10 4886 days 7%
Caroline 9/10 4888 days 7%
Leif Sorensen 10/10 4888 days 7%
Andy Lever 5/10 4889 days 4%
Johanna Maria Brigitta 8/10 4889 days 7%
Konny 10/10 4890 days 7%
Theresa 9/10 4890 days 7%
Rudy Witt 9/10 4890 days 7%
Peter Spooner 10/10 4891 days 7%
Gary A 9/10 4904 days 7%
damaca 10/10 4965 days 7%
Janet Arber 9/10 5099 days 7%
Ralph & Marloes Meyers 7/10 5117 days 6%
Derek 10/10 5129 days 7%
Brian & Di 9/10 5131 days 7%
Eric & Liz McKean 10/10 5131 days 7%
Leon van Hengel 8/10 5132 days 7%
Barbara Probert 9/10 5133 days 7%
Kuhu 9/10 5133 days 7%
Richard Dudfield 8/10 5135 days 7%
Robin Adair 10/10 5136 days 7%
Graham Mason 10/10 5136 days 7%
Oppenoorth 9/10 5137 days 7%
Shane Curline 8/10 5139 days 7%
Michael Orme 9/10 5139 days 7%
Peter & Angela Brown 9/10 5139 days 7%
Janey Chamberlain 8/10 5140 days 7%
Joop Ezendam 8/10 5141 days 7%
J Palmer 7/10 5141 days 6%
David Mellard 10/10 5141 days 7%
Nicola Shaw 10/10 5142 days 7%
Diane Johnston 9/10 5142 days 7%
Richard Broughton 9/10 5143 days 7%
Chris & Anne Pearson 6/10 5143 days 5%
Patrick Schaad 9/10 5143 days 7%
Gerstmann 9/10 5143 days 7%
Aln 8/10 5143 days 7%
Fam de Kruyf 8/10 5146 days 7%
Martin 9/10 5147 days 7%
Jack Vermeidem 8/10 5147 days 7%
Jan Visser 8/10 5149 days 7%
Marjan Van Den Braak 7/10 5150 days 6%
Tyson Burnett 8/10 5150 days 7%
John Gray 8/10 5150 days 7%
Colin Lockwood 8/10 5152 days 7%
David Emerick 10/10 5152 days 7%
Hadleigh 9/10 5154 days 7%
Marcus 9/10 5154 days 7%
Manu & Gabi 10/10 5154 days 7%
Peter 8/10 5154 days 7%
Bert Opdam 8/10 5159 days 7%
Anita Aleva 8/10 5161 days 7%
Leslie 9/10 5161 days 7%
Pat MacDonald 9/10 5164 days 7%
Jill Dean 9/10 5164 days 7%
Martin Current 8/10 5164 days 7%
Jane & Regis 9/10 5165 days 7%
Teum and Orselien 6/10 5165 days 5%
Graham 9/10 5165 days 7%
Ross Hughes 8/10 5168 days 7%
Sarraute 9/10 5169 days 7%
Webster 10/10 5170 days 7%
Jarob Brezigar 9/10 5170 days 7%
Lynn Leitch 10/10 5170 days 7%
Lili 6/10 5170 days 5%
Michael Duckert 9/10 5171 days 7%
Loren van Oordt 10/10 5172 days 7%
Tom Hill 10/10 5172 days 7%
D Oostrum 8/10 5172 days 7%
Elinor Bell 9/10 5172 days 7%
Tanner 10/10 5172 days 7%
John Fry 8/10 5172 days 7%
T Chapman 8/10 5172 days 7%
Ewald Waldner 9/10 5173 days 7%
Chris Chasemore 9/10 5173 days 7%
H Schepers 8/10 5173 days 7%
Steve & Susan Allan 9/10 5174 days 7%
Barbara Koegel 8/10 5174 days 7%
Andreas Neo 5/10 5174 days 4%
Grada Anderson 10/10 5177 days 7%
Chamton 8/10 5177 days 7%
Richardr1 10/10 5432 days 7%
Versteeg 8/10 5435 days 7%
Jon van Hanten 8/10 5439 days 7%
Charli Skinner 9/10 5444 days 7%
Kurt 9/10 5447 days 7%
Sophie & Joffrey 7/10 5448 days 6%
Jane and Dave 10/10 5450 days 7%
Peter Aerborg 9/10 5450 days 7%
krisevelyn 8/10 5453 days 7%
steveE 9/10 5453 days 7%
Maria 8/10 5483 days 7%
maggie Webster 7/10 5500 days 6%
katrina Marshall 10/10 5500 days 7%
Bergemann 10/10 5500 days 7%
Don Keith 6/10 5501 days 5%
OMPA 10/10 5502 days 7%
Theresa 10/10 5502 days 7%
George Lepple 10/10 5507 days 7%
Sue S 10/10 5509 days 7%
Ralph 4/10 5511 days 3%
Gerdes 9/10 5511 days 7%
Main 10/10 5515 days 7%
Stanna 9/10 5515 days 7%
Susan & Richard 10/10 5517 days 7%
Zareua Boree 9/10 5517 days 7%
S Millet 9/10 5520 days 7%
Muller Weissert 10/10 5521 days 7%
Frans N 10/10 5522 days 7%
Sue Bennett 8/10 5524 days 7%
Hans de Rijk 7/10 5524 days 6%
David Rich 9/10 5527 days 7%
Walter 8/10 5528 days 7%
Ferth 9/10 5528 days 7%
J Kempeneers 7/10 5528 days 6%
Vandeput 9/10 5528 days 7%
Marco 8/10 5530 days 7%
John Winter 8/10 5539 days 7%
Sinjc Grude 8/10 5539 days 7%
Hoogh 8/10 5539 days 7%
Keith Maplestone 8/10 5541 days 7%
John Rylance 10/10 5541 days 7%
Anne Fri 8/10 5541 days 7%
uleugel 9/10 5551 days 7%
Sabine Locker 8/10 5558 days 7%
Family van Hessem 7/10 5562 days 6%
Alibeare 10/10 5573 days 7%
graemeh1 9/10 5588 days 7%
klinger 10/10 5588 days 7%
wenerz 8/10 5589 days 7%
ilkal 9/10 5590 days 7%
susanl 10/10 5595 days 7%
Robbertsen 6/10 5596 days 5%
pimn 9/10 5598 days 7%
thomash 10/10 5598 days 7%
jamesg 9/10 5602 days 7%
pthreadgood 9/10 5602 days 7%
Gary Brown 10/10 5606 days 7%
Sandra M 8/10 5606 days 7%
dirkdev 9/10 5608 days 7%
Bill Nash 10/10 5608 days 7%
H Simpson 10/10 5608 days 7%
Wolfgang Mages 10/10 5608 days 7%
Colin S 9/10 5612 days 7%
Jenny Davies 8/10 5614 days 7%
Alan Riley 9/10 5616 days 7%
Ann Riley 9/10 5616 days 7%
Hennie Neeleman 9/10 5616 days 7%
Pieter Neeleman 8/10 5616 days 7%
Daniel Alonso 9/10 5616 days 7%
Hans Barth 8/10 5624 days 7%
Jenny and Dave Close 9/10 5627 days 7%
Graham Butt 8/10 5627 days 7%
Claudia 10/10 5627 days 7%
Evan 9/10 5665 days 7%
marleen451 9/10 5665 days 7%
johanw 9/10 5720 days 7%
ulrichk 10/10 5721 days 7%
lee 10/10 5818 days 7%
EvertG 8/10 5829 days 7%
CarolN 8/10 5832 days 7%
Andrew Lonsdale 8/10 5836 days 7%
RosemaryC 7/10 5845 days 6%
Christian Kamm 10/10 5845 days 7%
caroldarren 9/10 5848 days 7%
monikav 10/10 5848 days 7%
Silvia Huerlimann 9/10 5848 days 7%
Kim 8/10 5852 days 7%
PaulC 10/10 5854 days 7%
Thomas1646 9/10 5855 days 7%
HenizV 9/10 5857 days 7%
EstherW 9/10 5857 days 7%
Marc 7/10 5857 days 6%
LosItaly 10/10 5860 days 7%
Rissmann 9/10 5864 days 7%
Mick 10/10 5864 days 7%
Mayer 9/10 5864 days 7%
BernardK 9/10 5865 days 7%
Vivien Williams 10/10 5866 days 7%
Barry Smith 10/10 5868 days 7%
Siemens 8/10 5868 days 7%
Suzie Lechner 10/10 5868 days 7%
Danlin Yang 8/10 5871 days 7%
A 8/10 5872 days 7%
Dalibor 8/10 5882 days 7%
LindaV 8/10 5882 days 7%
RodW 10/10 5882 days 7%
CarstenU 10/10 5882 days 7%
CarolB 10/10 5882 days 7%
Elrik frau 9/10 5882 days 7%
MargaretH 10/10 5883 days 7%
Manfred 8/10 5884 days 7%
Kay 8/10 5891 days 7%
Visken 8/10 5891 days 7%
Pascal 6/10 5899 days 5%
Nienhaus 7/10 5915 days 6%
Anna 5/10 5915 days 4%
Liane 10/10 5916 days 7%
Hove 8/10 5920 days 7%
Roger 10/10 5920 days 7%
Bennie 9/10 5920 days 7%
Ellis 9/10 5920 days 7%
Rob 9/10 5920 days 7%
johanna 9/10 5921 days 7%
Kathrin 9/10 5921 days 7%
tommfuller 10/10 5932 days 7%
philipaindow 9/10 5950 days 7%
Grace 8/10 5953 days 7%
Ellen 9/10 5961 days 7%
Getkate 9/10 5969 days 7%
Sid 10/10 5989 days 7%
Paul 7/10 6025 days 6%
Andrew 10/10 6031 days 7%
Terry 9/10 6038 days 7%
Christine 8/10 6100 days 7%
angela 9/10 6231 days 7%
Hoetnagels 7/10 6231 days 6%
Wolfgang 10/10 6235 days 7%
Ria 9/10 6235 days 7%
Annette Hurst 7/10 6238 days 6%
Klaus 10/10 6239 days 7%
Raymond 9/10 6241 days 7%
Richard Steward 7/10 6245 days 6%
Christine McKenna 9/10 6246 days 7%
Kathy Hawey 9/10 6247 days 7%
Jurg Meister 10/10 6248 days 7%
Jurgen Westphal 7/10 6248 days 6%
Sally and David Wallis 9/10 6248 days 7%
Jackie Horwell 10/10 6249 days 7%
Paula Curtis 10/10 6252 days 7%
Claas 9/10 6261 days 7%
Travis 9/10 6284 days 7%
Maria 9/10 6291 days 7%
Jane Holm 8/10 6296 days 7%
Hans 10/10 6319 days 7%
Chris Gedda 8/10 6322 days 7%
Gabriela Herger 7/10 6330 days 6%
Jane Cameron 10/10 6332 days 7%
Jane Coleman 10/10 6333 days 7%
Lyn Saxon 10/10 6333 days 7%
Samuel Brejeon 8/10 6333 days 7%
Manuel 7/10 6337 days 6%
Ole Weber 9/10 6337 days 7%
Ed van Dael 7/10 6340 days 6%
Rene Schotvanger 9/10 6450 days 7%
Jo 10/10 6450 days 7%
Hans Knappmann 10/10 6450 days 7%
Martjn 8/10 6576 days 7%
Sandra 10/10 6585 days 7%
Ruefli 10/10 6585 days 7%
TeamFlorida 10/10 6585 days 7%
Deloraine 10/10 6585 days 7%
Petra 8/10 6585 days 7%
Anita 8/10 6585 days 7%
Oliver 10/10 6585 days 7%
Petra 10/10 6588 days 7%
Hannah 9/10 6588 days 7%
Michael 9/10 6590 days 7%
M Bekker 8/10 6590 days 7%
sebastian 9/10 6599 days 7%
John Beirne 10/10 6602 days 7%
Angela 9/10 6602 days 7%
Frederik 10/10 6602 days 7%
Pam 10/10 6604 days 7%
Kate 5/10 6606 days 4%
Danyel 9/10 6608 days 7%
Arjan 8/10 6609 days 7%
Manfred 9/10 6611 days 7%
Tom 9/10 6613 days 7%
Stefan 10/10 6618 days 7%
Pini 9/10 6624 days 7%
Gordon 8/10 6625 days 7%
Gillian 9/10 6625 days 7%
frank 8/10 6625 days 7%
Harrison 8/10 6626 days 7%
Hennielene 8/10 6626 days 7%
Beate 9/10 6626 days 7%
Leah 9/10 6626 days 7%
Liz 9/10 6626 days 7%

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 Abel Tasman Sea Shuttle experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.66% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 61 days. However the Abel Tasman Sea Shuttle 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 Abel Tasman Sea Shuttle experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -3.61%
198 -3.63%
199 -3.65%
200 -3.66%
201 -3.68%
202 -3.70%
203 -3.72%

Balancing Adjustment

1.93% 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

86%

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.