Back

Ranking Score Explained

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.

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

87.97%

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 1811 days 100%
S Weslake 10/10 2848 days 59%
Wendy 8/10 3246 days 42%
David 9/10 3246 days 43%
DEBBIE LAMBERT 10/10 3257 days 43%
Charlie Friesen 10/10 3302 days 41%
Guenter 10/10 3333 days 40%
Niels 9/10 3341 days 39%
Tom Brien 8/10 3578 days 30%
Carl 9/10 3605 days 29%
Ferry and Carlyn 9/10 3623 days 28%
Virgil Spruit 9/10 3663 days 26%
GONZALEZ ROBERTO 10/10 3730 days 24%
Megan 10/10 3937 days 16%
Felix Holm 7/10 4015 days 12%
Marion and Ralf 9/10 4034 days 12%
Astrid Egesten 4/10 4041 days 7%
Anna Grafenstein 8/10 4274 days 2%
Alisa 10/10 4277 days 2%
Laura 10/10 4277 days 2%
Jan Legein 10/10 4286 days 2%
Veeh Barrington 7/10 4310 days 1%
Rita Hochstiasser 8/10 4334 days 0%
Sue L 10/10 4337 days 0%
Brian 8/10 4429 days 18%
Christin Woelk 9/10 4638 days 18%
Rouquette 7/10 4684 days 17%
Bucher 10/10 4749 days 19%
Tony Hines 9/10 4750 days 18%
Al Stuart 6/10 4751 days 16%
Moorman 7/10 4755 days 17%
Urs Kloter 8/10 4755 days 18%
Brian Howe 10/10 4757 days 19%
Peter 10/10 4757 days 19%
Reinhard Stahl 9/10 4769 days 18%
Reinhard Stahl 9/10 4769 days 18%
Urs Zuercher 10/10 4769 days 19%
Peter Harden 10/10 4769 days 19%
Reijans 9/10 4770 days 18%
Judy 10/10 4773 days 19%
Henzen 8/10 4773 days 18%
Eric and Jen Popma 10/10 4774 days 19%
Stevie 9/10 4776 days 18%
Christian 10/10 4776 days 19%
Frederick Neilsen 6/10 4776 days 16%
John Freeman 10/10 4780 days 19%
Verest 9/10 4780 days 18%
Kali Lohman 7/10 4780 days 17%
Ton Franke 9/10 4780 days 18%
Stefan Roth 9/10 4780 days 18%
Marjo Cousijn 9/10 4781 days 18%
Megan Child 7/10 4781 days 17%
Roshnie 6/10 4794 days 16%
Adrian Weidell 8/10 4969 days 18%
Dovis Heinemann 10/10 5023 days 19%
Mark Westebring 8/10 5026 days 18%
Sally Gordie 8/10 5026 days 18%
Oliver Hardt 8/10 5028 days 18%
Petr Stepanek 10/10 5031 days 19%
Clausen 9/10 5032 days 18%
Val Phillips 9/10 5032 days 18%
Sabrina Germany 6/10 5034 days 16%
Armin Boehmer 8/10 5034 days 18%
Frank Claassen 7/10 5035 days 17%
tmdilly 7/10 5039 days 17%
Wright 8/10 5043 days 18%
B Sluis 8/10 5048 days 18%
Mark Bogton 9/10 5048 days 18%
Karl Brachtl 10/10 5048 days 19%
Michael Stoll 7/10 5049 days 17%
Martin & Dee Bellarby 10/10 5049 days 19%
Patrick Grant 9/10 5049 days 18%
Miina Hyuonen 8/10 5050 days 18%
Peter & Kate Carmichael 8/10 5050 days 18%
Chris 8/10 5050 days 18%
Stam 8/10 5050 days 18%
Nico Schoots 7/10 5050 days 17%
Russell Eames 8/10 5051 days 18%
Annie 8/10 5051 days 18%
R E Webb 8/10 5051 days 18%
Mickey 7/10 5051 days 17%
Cynthia 10/10 5051 days 19%
Rene 10/10 5051 days 19%
Patricia Fearon 8/10 5051 days 18%
Jacques Duyvestijn 8/10 5052 days 18%
Dominique 9/10 5052 days 18%
Russell 9/10 5053 days 18%
M Abbott 9/10 5053 days 18%
Walter & Heidi Baumann 10/10 5053 days 19%
Houter 8/10 5053 days 18%
Diane Moss 8/10 5053 days 18%
Robert McIlraith 10/10 5054 days 19%
Susie Christensen 8/10 5054 days 18%
Nic Roggeman 9/10 5055 days 18%
Thomas & Ruth Hardmeier 10/10 5056 days 19%
de Weijer 8/10 5056 days 18%
Beyeler 10/10 5056 days 19%
Aled 8/10 5057 days 18%
Lynn Robinson 9/10 5060 days 18%
Suzanne van Kol 9/10 5061 days 18%
Schweiger 10/10 5063 days 19%
Rowena and Ian Lanyon 9/10 5063 days 18%
Robert MacLeod-Smith 8/10 5064 days 18%
Soren Storeboerg 8/10 5065 days 18%
Steve Collier 9/10 5067 days 18%
Dick van Doorn 8/10 5067 days 18%
Heini 8/10 5067 days 18%
Barrie Corless 9/10 5067 days 18%
Stig Domander 9/10 5081 days 18%
Rhi 10/10 5099 days 19%
Tobias Forst 8/10 5131 days 18%
Arnoldus Bergmans 9/10 5134 days 18%
Dirk Faupel 9/10 5134 days 18%
Dirk Faupel 9/10 5134 days 18%
Chris Muller 8/10 5134 days 18%
Jo Delbrugge 9/10 5134 days 18%
Sarah and Soren 9/10 5136 days 18%
van Rees 9/10 5139 days 18%
Robin & Sandra Dijke 8/10 5139 days 18%
Jan & Marian 9/10 5142 days 18%
David & Mary-Jane Ryder 10/10 5142 days 19%
Caroline 9/10 5144 days 18%
Leif Sorensen 10/10 5144 days 19%
Andy Lever 5/10 5145 days 14%
Johanna Maria Brigitta 8/10 5145 days 18%
Konny 10/10 5146 days 19%
Theresa 9/10 5146 days 18%
Rudy Witt 9/10 5146 days 18%
Peter Spooner 10/10 5147 days 19%
Gary A 9/10 5160 days 18%
damaca 10/10 5221 days 19%
Janet Arber 9/10 5355 days 18%
Ralph & Marloes Meyers 7/10 5373 days 17%
Derek 10/10 5385 days 19%
Brian & Di 9/10 5387 days 18%
Eric & Liz McKean 10/10 5387 days 19%
Leon van Hengel 8/10 5388 days 18%
Barbara Probert 9/10 5389 days 18%
Kuhu 9/10 5389 days 18%
Richard Dudfield 8/10 5391 days 18%
Robin Adair 10/10 5392 days 19%
Graham Mason 10/10 5392 days 19%
Oppenoorth 9/10 5393 days 18%
Shane Curline 8/10 5395 days 18%
Michael Orme 9/10 5395 days 18%
Peter & Angela Brown 9/10 5395 days 18%
Janey Chamberlain 8/10 5396 days 18%
Joop Ezendam 8/10 5397 days 18%
J Palmer 7/10 5397 days 17%
David Mellard 10/10 5397 days 19%
Nicola Shaw 10/10 5398 days 19%
Diane Johnston 9/10 5398 days 18%
Richard Broughton 9/10 5399 days 18%
Chris & Anne Pearson 6/10 5399 days 16%
Patrick Schaad 9/10 5399 days 18%
Gerstmann 9/10 5399 days 18%
Aln 8/10 5399 days 18%
Fam de Kruyf 8/10 5402 days 18%
Martin 9/10 5403 days 18%
Jack Vermeidem 8/10 5403 days 18%
Jan Visser 8/10 5405 days 18%
Marjan Van Den Braak 7/10 5406 days 17%
Tyson Burnett 8/10 5406 days 18%
John Gray 8/10 5406 days 18%
Colin Lockwood 8/10 5408 days 18%
David Emerick 10/10 5408 days 19%
Hadleigh 9/10 5410 days 18%
Marcus 9/10 5410 days 18%
Manu & Gabi 10/10 5410 days 19%
Peter 8/10 5410 days 18%
Bert Opdam 8/10 5415 days 18%
Anita Aleva 8/10 5417 days 18%
Leslie 9/10 5417 days 18%
Pat MacDonald 9/10 5420 days 18%
Jill Dean 9/10 5420 days 18%
Martin Current 8/10 5420 days 18%
Jane & Regis 9/10 5421 days 18%
Teum and Orselien 6/10 5421 days 16%
Graham 9/10 5421 days 18%
Ross Hughes 8/10 5424 days 18%
Sarraute 9/10 5425 days 18%
Webster 10/10 5426 days 19%
Jarob Brezigar 9/10 5426 days 18%
Lynn Leitch 10/10 5426 days 19%
Lili 6/10 5426 days 16%
Michael Duckert 9/10 5427 days 18%
Loren van Oordt 10/10 5428 days 19%
Tom Hill 10/10 5428 days 19%
D Oostrum 8/10 5428 days 18%
Elinor Bell 9/10 5428 days 18%
Tanner 10/10 5428 days 19%
John Fry 8/10 5428 days 18%
T Chapman 8/10 5428 days 18%
Ewald Waldner 9/10 5429 days 18%
Chris Chasemore 9/10 5429 days 18%
H Schepers 8/10 5429 days 18%
Steve & Susan Allan 9/10 5430 days 18%
Barbara Koegel 8/10 5430 days 18%
Andreas Neo 5/10 5430 days 14%
Grada Anderson 10/10 5433 days 19%
Chamton 8/10 5433 days 18%
Richardr1 10/10 5688 days 19%
Versteeg 8/10 5691 days 18%
Jon van Hanten 8/10 5695 days 18%
Charli Skinner 9/10 5700 days 18%
Kurt 9/10 5703 days 18%
Sophie & Joffrey 7/10 5704 days 17%
Jane and Dave 10/10 5706 days 19%
Peter Aerborg 9/10 5706 days 18%
krisevelyn 8/10 5709 days 18%
steveE 9/10 5709 days 18%
Maria 8/10 5739 days 18%
maggie Webster 7/10 5756 days 17%
katrina Marshall 10/10 5756 days 19%
Bergemann 10/10 5756 days 19%
Don Keith 6/10 5757 days 16%
OMPA 10/10 5758 days 19%
Theresa 10/10 5758 days 19%
George Lepple 10/10 5763 days 19%
Sue S 10/10 5765 days 19%
Ralph 4/10 5767 days 12%
Gerdes 9/10 5767 days 18%
Main 10/10 5771 days 19%
Stanna 9/10 5771 days 18%
Susan & Richard 10/10 5773 days 19%
Zareua Boree 9/10 5773 days 18%
S Millet 9/10 5776 days 18%
Muller Weissert 10/10 5777 days 19%
Frans N 10/10 5778 days 19%
Sue Bennett 8/10 5780 days 18%
Hans de Rijk 7/10 5780 days 17%
David Rich 9/10 5783 days 18%
Walter 8/10 5784 days 18%
Ferth 9/10 5784 days 18%
J Kempeneers 7/10 5784 days 17%
Vandeput 9/10 5784 days 18%
Marco 8/10 5786 days 18%
John Winter 8/10 5795 days 18%
Sinjc Grude 8/10 5795 days 18%
Hoogh 8/10 5795 days 18%
Keith Maplestone 8/10 5797 days 18%
John Rylance 10/10 5797 days 19%
Anne Fri 8/10 5797 days 18%
uleugel 9/10 5807 days 18%
Sabine Locker 8/10 5814 days 18%
Family van Hessem 7/10 5818 days 17%
Alibeare 10/10 5829 days 19%
graemeh1 9/10 5844 days 18%
klinger 10/10 5844 days 19%
wenerz 8/10 5845 days 18%
ilkal 9/10 5846 days 18%
susanl 10/10 5851 days 19%
Robbertsen 6/10 5852 days 16%
pimn 9/10 5854 days 18%
thomash 10/10 5854 days 19%
jamesg 9/10 5858 days 18%
pthreadgood 9/10 5858 days 18%
Gary Brown 10/10 5862 days 19%
Sandra M 8/10 5862 days 18%
dirkdev 9/10 5864 days 18%
Bill Nash 10/10 5864 days 19%
H Simpson 10/10 5864 days 19%
Wolfgang Mages 10/10 5864 days 19%
Colin S 9/10 5868 days 18%
Jenny Davies 8/10 5870 days 18%
Alan Riley 9/10 5872 days 18%
Ann Riley 9/10 5872 days 18%
Hennie Neeleman 9/10 5872 days 18%
Pieter Neeleman 8/10 5872 days 18%
Daniel Alonso 9/10 5872 days 18%
Hans Barth 8/10 5880 days 18%
Jenny and Dave Close 9/10 5883 days 18%
Graham Butt 8/10 5883 days 18%
Claudia 10/10 5883 days 19%
Evan 9/10 5921 days 18%
marleen451 9/10 5921 days 18%
johanw 9/10 5976 days 18%
ulrichk 10/10 5977 days 19%
lee 10/10 6074 days 19%
EvertG 8/10 6085 days 18%
CarolN 8/10 6088 days 18%
Andrew Lonsdale 8/10 6092 days 18%
RosemaryC 7/10 6101 days 17%
Christian Kamm 10/10 6101 days 19%
caroldarren 9/10 6104 days 18%
monikav 10/10 6104 days 19%
Silvia Huerlimann 9/10 6104 days 18%
Kim 8/10 6108 days 18%
PaulC 10/10 6111 days 19%
Thomas1646 9/10 6111 days 18%
HenizV 9/10 6114 days 18%
EstherW 9/10 6114 days 18%
Marc 7/10 6114 days 17%
LosItaly 10/10 6116 days 19%
Rissmann 9/10 6120 days 18%
Mick 10/10 6121 days 19%
Mayer 9/10 6121 days 18%
BernardK 9/10 6121 days 18%
Vivien Williams 10/10 6122 days 19%
Barry Smith 10/10 6124 days 19%
Siemens 8/10 6124 days 18%
Suzie Lechner 10/10 6124 days 19%
Danlin Yang 8/10 6127 days 18%
A 8/10 6128 days 18%
Dalibor 8/10 6138 days 18%
LindaV 8/10 6138 days 18%
RodW 10/10 6138 days 19%
CarstenU 10/10 6138 days 19%
CarolB 10/10 6138 days 19%
Elrik frau 9/10 6138 days 18%
MargaretH 10/10 6139 days 19%
Manfred 8/10 6141 days 18%
Kay 8/10 6148 days 18%
Visken 8/10 6148 days 18%
Pascal 6/10 6155 days 16%
Nienhaus 7/10 6171 days 17%
Anna 5/10 6171 days 14%
Liane 10/10 6172 days 19%
Hove 8/10 6176 days 18%
Roger 10/10 6176 days 19%
Bennie 9/10 6176 days 18%
Ellis 9/10 6176 days 18%
Rob 9/10 6176 days 18%
johanna 9/10 6177 days 18%
Kathrin 9/10 6177 days 18%
tommfuller 10/10 6188 days 19%
philipaindow 9/10 6206 days 18%
Grace 8/10 6209 days 18%
Ellen 9/10 6218 days 18%
Getkate 9/10 6226 days 18%
Sid 10/10 6245 days 19%
Paul 7/10 6282 days 17%
Andrew 10/10 6288 days 19%
Terry 9/10 6295 days 18%
Christine 8/10 6356 days 18%
angela 9/10 6487 days 18%
Hoetnagels 7/10 6487 days 17%
Wolfgang 10/10 6491 days 19%
Ria 9/10 6491 days 18%
Annette Hurst 7/10 6494 days 17%
Klaus 10/10 6495 days 19%
Raymond 9/10 6497 days 18%
Richard Steward 7/10 6501 days 17%
Christine McKenna 9/10 6502 days 18%
Kathy Hawey 9/10 6503 days 18%
Jurg Meister 10/10 6504 days 19%
Jurgen Westphal 7/10 6504 days 17%
Sally and David Wallis 9/10 6504 days 18%
Jackie Horwell 10/10 6505 days 19%
Paula Curtis 10/10 6508 days 19%
Claas 9/10 6517 days 18%
Travis 9/10 6540 days 18%
Maria 9/10 6547 days 18%
Jane Holm 8/10 6552 days 18%
Hans 10/10 6575 days 19%
Chris Gedda 8/10 6578 days 18%
Gabriela Herger 7/10 6586 days 17%
Jane Cameron 10/10 6588 days 19%
Jane Coleman 10/10 6589 days 19%
Lyn Saxon 10/10 6589 days 19%
Samuel Brejeon 8/10 6589 days 18%
Manuel 7/10 6593 days 17%
Ole Weber 9/10 6593 days 18%
Ed van Dael 7/10 6596 days 17%
Rene Schotvanger 9/10 6706 days 18%
Jo 10/10 6706 days 19%
Hans Knappmann 10/10 6706 days 19%
Martjn 8/10 6832 days 18%
Sandra 10/10 6841 days 19%
Ruefli 10/10 6841 days 19%
TeamFlorida 10/10 6841 days 19%
Deloraine 10/10 6841 days 19%
Petra 8/10 6841 days 18%
Anita 8/10 6841 days 18%
Oliver 10/10 6841 days 19%
Petra 10/10 6844 days 19%
Hannah 9/10 6844 days 18%
Michael 9/10 6846 days 18%
M Bekker 8/10 6846 days 18%
sebastian 9/10 6855 days 18%
John Beirne 10/10 6858 days 19%
Angela 9/10 6858 days 18%
Frederik 10/10 6858 days 19%
Pam 10/10 6860 days 19%
Kate 5/10 6862 days 14%
Danyel 9/10 6864 days 18%
Arjan 8/10 6865 days 18%
Manfred 9/10 6867 days 18%
Tom 9/10 6869 days 18%
Stefan 10/10 6874 days 19%
Pini 9/10 6880 days 18%
Gordon 8/10 6881 days 18%
Gillian 9/10 6881 days 18%
frank 8/10 6881 days 18%
Harrison 8/10 6882 days 18%
Hennielene 8/10 6882 days 18%
Beate 9/10 6882 days 18%
Leah 9/10 6882 days 18%
Liz 9/10 6882 days 18%

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

-4.05% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 42 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 -3.99%
198 -4.01%
199 -4.03%
200 -4.05%
201 -4.07%
202 -4.09%
203 -4.11%
… …

Balancing Adjustment

2.05% 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.