Hi, 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's avatar

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 1561 days 100%
S Weslake 10/10 2598 days 36%
Wendy 8/10 2996 days 26%
David 9/10 2996 days 27%
DEBBIE LAMBERT 10/10 3007 days 27%
Charlie Friesen 10/10 3052 days 26%
Guenter 10/10 3082 days 25%
Niels 9/10 3091 days 25%
Tom Brien 8/10 3328 days 19%
Carl 9/10 3355 days 19%
Ferry and Carlyn 9/10 3373 days 18%
Virgil Spruit 9/10 3413 days 17%
GONZALEZ ROBERTO 10/10 3479 days 16%
Megan 10/10 3687 days 11%
Felix Holm 7/10 3765 days 9%
Marion and Ralf 9/10 3784 days 9%
Astrid Egesten 4/10 3791 days 4%
Anna Grafenstein 8/10 4024 days 3%
Alisa 10/10 4027 days 4%
Laura 10/10 4027 days 4%
Jan Legein 10/10 4036 days 3%
Veeh Barrington 7/10 4060 days 2%
Rita Hochstiasser 8/10 4084 days 2%
Sue L 10/10 4087 days 2%
Brian 8/10 4179 days 0%
Christin Woelk 9/10 4388 days 7%
Rouquette 7/10 4434 days 6%
Bucher 10/10 4499 days 7%
Tony Hines 9/10 4500 days 7%
Al Stuart 6/10 4501 days 6%
Moorman 7/10 4505 days 6%
Urs Kloter 8/10 4505 days 7%
Brian Howe 10/10 4507 days 7%
Peter 10/10 4507 days 7%
Reinhard Stahl 9/10 4519 days 7%
Reinhard Stahl 9/10 4519 days 7%
Urs Zuercher 10/10 4519 days 7%
Peter Harden 10/10 4519 days 7%
Reijans 9/10 4520 days 7%
Judy 10/10 4523 days 7%
Henzen 8/10 4523 days 7%
Eric and Jen Popma 10/10 4524 days 7%
Stevie 9/10 4526 days 7%
Christian 10/10 4526 days 7%
Frederick Neilsen 6/10 4526 days 6%
John Freeman 10/10 4530 days 7%
Verest 9/10 4530 days 7%
Kali Lohman 7/10 4530 days 6%
Ton Franke 9/10 4530 days 7%
Stefan Roth 9/10 4530 days 7%
Marjo Cousijn 9/10 4531 days 7%
Megan Child 7/10 4531 days 6%
Roshnie 6/10 4544 days 6%
Adrian Weidell 8/10 4719 days 7%
Dovis Heinemann 10/10 4773 days 7%
Mark Westebring 8/10 4776 days 7%
Sally Gordie 8/10 4776 days 7%
Oliver Hardt 8/10 4778 days 7%
Petr Stepanek 10/10 4781 days 7%
Clausen 9/10 4782 days 7%
Val Phillips 9/10 4782 days 7%
Sabrina Germany 6/10 4784 days 6%
Armin Boehmer 8/10 4784 days 7%
Frank Claassen 7/10 4785 days 6%
tmdilly 7/10 4789 days 6%
Wright 8/10 4793 days 7%
B Sluis 8/10 4798 days 7%
Mark Bogton 9/10 4798 days 7%
Karl Brachtl 10/10 4798 days 7%
Michael Stoll 7/10 4799 days 6%
Martin & Dee Bellarby 10/10 4799 days 7%
Patrick Grant 9/10 4799 days 7%
Miina Hyuonen 8/10 4800 days 7%
Peter & Kate Carmichael 8/10 4800 days 7%
Chris 8/10 4800 days 7%
Stam 8/10 4800 days 7%
Nico Schoots 7/10 4800 days 6%
Russell Eames 8/10 4801 days 7%
Annie 8/10 4801 days 7%
R E Webb 8/10 4801 days 7%
Mickey 7/10 4801 days 6%
Cynthia 10/10 4801 days 7%
Rene 10/10 4801 days 7%
Patricia Fearon 8/10 4801 days 7%
Jacques Duyvestijn 8/10 4802 days 7%
Dominique 9/10 4802 days 7%
Russell 9/10 4803 days 7%
M Abbott 9/10 4803 days 7%
Walter & Heidi Baumann 10/10 4803 days 7%
Houter 8/10 4803 days 7%
Diane Moss 8/10 4803 days 7%
Robert McIlraith 10/10 4804 days 7%
Susie Christensen 8/10 4804 days 7%
Nic Roggeman 9/10 4805 days 7%
Thomas & Ruth Hardmeier 10/10 4806 days 7%
de Weijer 8/10 4806 days 7%
Beyeler 10/10 4806 days 7%
Aled 8/10 4807 days 7%
Lynn Robinson 9/10 4810 days 7%
Suzanne van Kol 9/10 4811 days 7%
Schweiger 10/10 4813 days 7%
Rowena and Ian Lanyon 9/10 4813 days 7%
Robert MacLeod-Smith 8/10 4814 days 7%
Soren Storeboerg 8/10 4815 days 7%
Steve Collier 9/10 4817 days 7%
Dick van Doorn 8/10 4817 days 7%
Heini 8/10 4817 days 7%
Barrie Corless 9/10 4817 days 7%
Stig Domander 9/10 4831 days 7%
Rhi 10/10 4849 days 7%
Tobias Forst 8/10 4881 days 7%
Arnoldus Bergmans 9/10 4884 days 7%
Dirk Faupel 9/10 4884 days 7%
Dirk Faupel 9/10 4884 days 7%
Chris Muller 8/10 4884 days 7%
Jo Delbrugge 9/10 4884 days 7%
Sarah and Soren 9/10 4886 days 7%
van Rees 9/10 4889 days 7%
Robin & Sandra Dijke 8/10 4889 days 7%
Jan & Marian 9/10 4892 days 7%
David & Mary-Jane Ryder 10/10 4892 days 7%
Caroline 9/10 4894 days 7%
Leif Sorensen 10/10 4894 days 7%
Andy Lever 5/10 4895 days 4%
Johanna Maria Brigitta 8/10 4895 days 7%
Konny 10/10 4896 days 7%
Theresa 9/10 4896 days 7%
Rudy Witt 9/10 4896 days 7%
Peter Spooner 10/10 4897 days 7%
Gary A 9/10 4910 days 7%
damaca 10/10 4971 days 7%
Janet Arber 9/10 5105 days 7%
Ralph & Marloes Meyers 7/10 5123 days 6%
Derek 10/10 5135 days 7%
Brian & Di 9/10 5137 days 7%
Eric & Liz McKean 10/10 5137 days 7%
Leon van Hengel 8/10 5138 days 7%
Barbara Probert 9/10 5139 days 7%
Kuhu 9/10 5139 days 7%
Richard Dudfield 8/10 5141 days 7%
Robin Adair 10/10 5142 days 7%
Graham Mason 10/10 5142 days 7%
Oppenoorth 9/10 5143 days 7%
Shane Curline 8/10 5145 days 7%
Michael Orme 9/10 5145 days 7%
Peter & Angela Brown 9/10 5145 days 7%
Janey Chamberlain 8/10 5146 days 7%
Joop Ezendam 8/10 5147 days 7%
J Palmer 7/10 5147 days 6%
David Mellard 10/10 5147 days 7%
Nicola Shaw 10/10 5148 days 7%
Diane Johnston 9/10 5148 days 7%
Richard Broughton 9/10 5149 days 7%
Chris & Anne Pearson 6/10 5149 days 6%
Patrick Schaad 9/10 5149 days 7%
Gerstmann 9/10 5149 days 7%
Aln 8/10 5149 days 7%
Fam de Kruyf 8/10 5152 days 7%
Martin 9/10 5153 days 7%
Jack Vermeidem 8/10 5153 days 7%
Jan Visser 8/10 5155 days 7%
Marjan Van Den Braak 7/10 5156 days 6%
Tyson Burnett 8/10 5156 days 7%
John Gray 8/10 5156 days 7%
Colin Lockwood 8/10 5158 days 7%
David Emerick 10/10 5158 days 7%
Hadleigh 9/10 5160 days 7%
Marcus 9/10 5160 days 7%
Manu & Gabi 10/10 5160 days 7%
Peter 8/10 5160 days 7%
Bert Opdam 8/10 5165 days 7%
Anita Aleva 8/10 5167 days 7%
Leslie 9/10 5167 days 7%
Pat MacDonald 9/10 5170 days 7%
Jill Dean 9/10 5170 days 7%
Martin Current 8/10 5170 days 7%
Jane & Regis 9/10 5171 days 7%
Teum and Orselien 6/10 5171 days 6%
Graham 9/10 5171 days 7%
Ross Hughes 8/10 5174 days 7%
Sarraute 9/10 5175 days 7%
Webster 10/10 5176 days 7%
Jarob Brezigar 9/10 5176 days 7%
Lynn Leitch 10/10 5176 days 7%
Lili 6/10 5176 days 6%
Michael Duckert 9/10 5177 days 7%
Loren van Oordt 10/10 5178 days 7%
Tom Hill 10/10 5178 days 7%
D Oostrum 8/10 5178 days 7%
Elinor Bell 9/10 5178 days 7%
Tanner 10/10 5178 days 7%
John Fry 8/10 5178 days 7%
T Chapman 8/10 5178 days 7%
Ewald Waldner 9/10 5179 days 7%
Chris Chasemore 9/10 5179 days 7%
H Schepers 8/10 5179 days 7%
Steve & Susan Allan 9/10 5180 days 7%
Barbara Koegel 8/10 5180 days 7%
Andreas Neo 5/10 5180 days 4%
Grada Anderson 10/10 5183 days 7%
Chamton 8/10 5183 days 7%
Richardr1 10/10 5438 days 7%
Versteeg 8/10 5441 days 7%
Jon van Hanten 8/10 5445 days 7%
Charli Skinner 9/10 5450 days 7%
Kurt 9/10 5453 days 7%
Sophie & Joffrey 7/10 5454 days 6%
Jane and Dave 10/10 5456 days 7%
Peter Aerborg 9/10 5456 days 7%
krisevelyn 8/10 5459 days 7%
steveE 9/10 5459 days 7%
Maria 8/10 5489 days 7%
maggie Webster 7/10 5506 days 6%
katrina Marshall 10/10 5506 days 7%
Bergemann 10/10 5506 days 7%
Don Keith 6/10 5507 days 6%
OMPA 10/10 5508 days 7%
Theresa 10/10 5508 days 7%
George Lepple 10/10 5513 days 7%
Sue S 10/10 5515 days 7%
Ralph 4/10 5517 days 3%
Gerdes 9/10 5517 days 7%
Main 10/10 5521 days 7%
Stanna 9/10 5521 days 7%
Susan & Richard 10/10 5523 days 7%
Zareua Boree 9/10 5523 days 7%
S Millet 9/10 5526 days 7%
Muller Weissert 10/10 5527 days 7%
Frans N 10/10 5528 days 7%
Sue Bennett 8/10 5530 days 7%
Hans de Rijk 7/10 5530 days 6%
David Rich 9/10 5533 days 7%
Walter 8/10 5534 days 7%
Ferth 9/10 5534 days 7%
J Kempeneers 7/10 5534 days 6%
Vandeput 9/10 5534 days 7%
Marco 8/10 5536 days 7%
John Winter 8/10 5545 days 7%
Sinjc Grude 8/10 5545 days 7%
Hoogh 8/10 5545 days 7%
Keith Maplestone 8/10 5547 days 7%
John Rylance 10/10 5547 days 7%
Anne Fri 8/10 5547 days 7%
uleugel 9/10 5557 days 7%
Sabine Locker 8/10 5564 days 7%
Family van Hessem 7/10 5568 days 6%
Alibeare 10/10 5579 days 7%
graemeh1 9/10 5594 days 7%
klinger 10/10 5594 days 7%
wenerz 8/10 5595 days 7%
ilkal 9/10 5596 days 7%
susanl 10/10 5601 days 7%
Robbertsen 6/10 5602 days 6%
pimn 9/10 5604 days 7%
thomash 10/10 5604 days 7%
jamesg 9/10 5608 days 7%
pthreadgood 9/10 5608 days 7%
Gary Brown 10/10 5612 days 7%
Sandra M 8/10 5612 days 7%
dirkdev 9/10 5614 days 7%
Bill Nash 10/10 5614 days 7%
H Simpson 10/10 5614 days 7%
Wolfgang Mages 10/10 5614 days 7%
Colin S 9/10 5618 days 7%
Jenny Davies 8/10 5620 days 7%
Alan Riley 9/10 5622 days 7%
Ann Riley 9/10 5622 days 7%
Hennie Neeleman 9/10 5622 days 7%
Pieter Neeleman 8/10 5622 days 7%
Daniel Alonso 9/10 5622 days 7%
Hans Barth 8/10 5630 days 7%
Jenny and Dave Close 9/10 5633 days 7%
Graham Butt 8/10 5633 days 7%
Claudia 10/10 5633 days 7%
Evan 9/10 5671 days 7%
marleen451 9/10 5671 days 7%
johanw 9/10 5726 days 7%
ulrichk 10/10 5727 days 7%
lee 10/10 5824 days 7%
EvertG 8/10 5835 days 7%
CarolN 8/10 5838 days 7%
Andrew Lonsdale 8/10 5842 days 7%
RosemaryC 7/10 5851 days 6%
Christian Kamm 10/10 5851 days 7%
caroldarren 9/10 5854 days 7%
monikav 10/10 5854 days 7%
Silvia Huerlimann 9/10 5854 days 7%
Kim 8/10 5858 days 7%
PaulC 10/10 5860 days 7%
Thomas1646 9/10 5861 days 7%
HenizV 9/10 5863 days 7%
EstherW 9/10 5863 days 7%
Marc 7/10 5863 days 6%
LosItaly 10/10 5866 days 7%
Rissmann 9/10 5870 days 7%
Mick 10/10 5870 days 7%
Mayer 9/10 5870 days 7%
BernardK 9/10 5871 days 7%
Vivien Williams 10/10 5872 days 7%
Barry Smith 10/10 5874 days 7%
Siemens 8/10 5874 days 7%
Suzie Lechner 10/10 5874 days 7%
Danlin Yang 8/10 5877 days 7%
A 8/10 5878 days 7%
Dalibor 8/10 5888 days 7%
LindaV 8/10 5888 days 7%
RodW 10/10 5888 days 7%
CarstenU 10/10 5888 days 7%
CarolB 10/10 5888 days 7%
Elrik frau 9/10 5888 days 7%
MargaretH 10/10 5889 days 7%
Manfred 8/10 5890 days 7%
Kay 8/10 5897 days 7%
Visken 8/10 5897 days 7%
Pascal 6/10 5905 days 6%
Nienhaus 7/10 5921 days 6%
Anna 5/10 5921 days 4%
Liane 10/10 5922 days 7%
Hove 8/10 5926 days 7%
Roger 10/10 5926 days 7%
Bennie 9/10 5926 days 7%
Ellis 9/10 5926 days 7%
Rob 9/10 5926 days 7%
johanna 9/10 5927 days 7%
Kathrin 9/10 5927 days 7%
tommfuller 10/10 5938 days 7%
philipaindow 9/10 5956 days 7%
Grace 8/10 5958 days 7%
Ellen 9/10 5967 days 7%
Getkate 9/10 5975 days 7%
Sid 10/10 5994 days 7%
Paul 7/10 6031 days 6%
Andrew 10/10 6037 days 7%
Terry 9/10 6044 days 7%
Christine 8/10 6106 days 7%
angela 9/10 6237 days 7%
Hoetnagels 7/10 6237 days 6%
Wolfgang 10/10 6241 days 7%
Ria 9/10 6241 days 7%
Annette Hurst 7/10 6244 days 6%
Klaus 10/10 6245 days 7%
Raymond 9/10 6247 days 7%
Richard Steward 7/10 6251 days 6%
Christine McKenna 9/10 6252 days 7%
Kathy Hawey 9/10 6253 days 7%
Jurg Meister 10/10 6254 days 7%
Jurgen Westphal 7/10 6254 days 6%
Sally and David Wallis 9/10 6254 days 7%
Jackie Horwell 10/10 6255 days 7%
Paula Curtis 10/10 6258 days 7%
Claas 9/10 6267 days 7%
Travis 9/10 6290 days 7%
Maria 9/10 6297 days 7%
Jane Holm 8/10 6302 days 7%
Hans 10/10 6325 days 7%
Chris Gedda 8/10 6328 days 7%
Gabriela Herger 7/10 6336 days 6%
Jane Cameron 10/10 6338 days 7%
Jane Coleman 10/10 6339 days 7%
Lyn Saxon 10/10 6339 days 7%
Samuel Brejeon 8/10 6339 days 7%
Manuel 7/10 6343 days 6%
Ole Weber 9/10 6343 days 7%
Ed van Dael 7/10 6346 days 6%
Rene Schotvanger 9/10 6456 days 7%
Jo 10/10 6456 days 7%
Hans Knappmann 10/10 6456 days 7%
Martjn 8/10 6582 days 7%
Sandra 10/10 6591 days 7%
Ruefli 10/10 6591 days 7%
TeamFlorida 10/10 6591 days 7%
Deloraine 10/10 6591 days 7%
Petra 8/10 6591 days 7%
Anita 8/10 6591 days 7%
Oliver 10/10 6591 days 7%
Petra 10/10 6594 days 7%
Hannah 9/10 6594 days 7%
Michael 9/10 6596 days 7%
M Bekker 8/10 6596 days 7%
sebastian 9/10 6605 days 7%
John Beirne 10/10 6608 days 7%
Angela 9/10 6608 days 7%
Frederik 10/10 6608 days 7%
Pam 10/10 6610 days 7%
Kate 5/10 6612 days 4%
Danyel 9/10 6614 days 7%
Arjan 8/10 6615 days 7%
Manfred 9/10 6617 days 7%
Tom 9/10 6619 days 7%
Stefan 10/10 6624 days 7%
Pini 9/10 6630 days 7%
Gordon 8/10 6631 days 7%
Gillian 9/10 6631 days 7%
frank 8/10 6631 days 7%
Harrison 8/10 6632 days 7%
Hennielene 8/10 6632 days 7%
Beate 9/10 6632 days 7%
Leah 9/10 6632 days 7%
Liz 9/10 6632 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

-3.55% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 63 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 -3.49%
198 -3.51%
199 -3.53%
200 -3.55%
201 -3.56%
202 -3.58%
203 -3.60%

Balancing Adjustment

1.90% 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.