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

88.17%

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 1524 days 100%
S Weslake 10/10 2561 days 35%
Wendy 8/10 2959 days 26%
David 9/10 2959 days 27%
DEBBIE LAMBERT 10/10 2970 days 27%
Charlie Friesen 10/10 3015 days 26%
Guenter 10/10 3045 days 25%
Niels 9/10 3054 days 25%
Tom Brien 8/10 3291 days 20%
Carl 9/10 3318 days 20%
Ferry and Carlyn 9/10 3336 days 19%
Virgil Spruit 9/10 3376 days 19%
GONZALEZ ROBERTO 10/10 3442 days 18%
Megan 10/10 3650 days 14%
Felix Holm 7/10 3728 days 11%
Marion and Ralf 9/10 3747 days 12%
Astrid Egesten 4/10 3754 days 7%
Anna Grafenstein 8/10 3987 days 7%
Alisa 10/10 3990 days 7%
Laura 10/10 3990 days 7%
Jan Legein 10/10 3999 days 7%
Veeh Barrington 7/10 4023 days 6%
Rita Hochstiasser 8/10 4047 days 6%
Sue L 10/10 4050 days 6%
Brian 8/10 4142 days 4%
Christin Woelk 9/10 4351 days 0%
Rouquette 7/10 4397 days 9%
Bucher 10/10 4462 days 9%
Tony Hines 9/10 4463 days 9%
Al Stuart 6/10 4464 days 8%
Moorman 7/10 4468 days 9%
Urs Kloter 8/10 4468 days 9%
Brian Howe 10/10 4470 days 9%
Peter 10/10 4470 days 9%
Reinhard Stahl 9/10 4482 days 9%
Reinhard Stahl 9/10 4482 days 9%
Urs Zuercher 10/10 4482 days 9%
Peter Harden 10/10 4482 days 9%
Reijans 9/10 4483 days 9%
Judy 10/10 4486 days 9%
Henzen 8/10 4486 days 9%
Eric and Jen Popma 10/10 4487 days 9%
Stevie 9/10 4489 days 9%
Christian 10/10 4489 days 9%
Frederick Neilsen 6/10 4489 days 8%
John Freeman 10/10 4493 days 9%
Verest 9/10 4493 days 9%
Kali Lohman 7/10 4493 days 9%
Ton Franke 9/10 4493 days 9%
Stefan Roth 9/10 4493 days 9%
Marjo Cousijn 9/10 4494 days 9%
Megan Child 7/10 4494 days 9%
Roshnie 6/10 4507 days 8%
Adrian Weidell 8/10 4682 days 9%
Dovis Heinemann 10/10 4736 days 9%
Mark Westebring 8/10 4739 days 9%
Sally Gordie 8/10 4739 days 9%
Oliver Hardt 8/10 4741 days 9%
Petr Stepanek 10/10 4744 days 9%
Clausen 9/10 4745 days 9%
Val Phillips 9/10 4745 days 9%
Sabrina Germany 6/10 4747 days 8%
Armin Boehmer 8/10 4747 days 9%
Frank Claassen 7/10 4748 days 9%
tmdilly 7/10 4752 days 9%
Wright 8/10 4756 days 9%
B Sluis 8/10 4761 days 9%
Mark Bogton 9/10 4761 days 9%
Karl Brachtl 10/10 4761 days 9%
Michael Stoll 7/10 4762 days 9%
Martin & Dee Bellarby 10/10 4762 days 9%
Patrick Grant 9/10 4762 days 9%
Miina Hyuonen 8/10 4763 days 9%
Peter & Kate Carmichael 8/10 4763 days 9%
Chris 8/10 4763 days 9%
Stam 8/10 4763 days 9%
Nico Schoots 7/10 4763 days 9%
Russell Eames 8/10 4764 days 9%
Annie 8/10 4764 days 9%
R E Webb 8/10 4764 days 9%
Mickey 7/10 4764 days 9%
Cynthia 10/10 4764 days 9%
Rene 10/10 4764 days 9%
Patricia Fearon 8/10 4764 days 9%
Jacques Duyvestijn 8/10 4765 days 9%
Dominique 9/10 4765 days 9%
Russell 9/10 4766 days 9%
M Abbott 9/10 4766 days 9%
Walter & Heidi Baumann 10/10 4766 days 9%
Houter 8/10 4766 days 9%
Diane Moss 8/10 4766 days 9%
Robert McIlraith 10/10 4767 days 9%
Susie Christensen 8/10 4767 days 9%
Nic Roggeman 9/10 4768 days 9%
Thomas & Ruth Hardmeier 10/10 4769 days 9%
de Weijer 8/10 4769 days 9%
Beyeler 10/10 4769 days 9%
Aled 8/10 4770 days 9%
Lynn Robinson 9/10 4773 days 9%
Suzanne van Kol 9/10 4774 days 9%
Schweiger 10/10 4776 days 9%
Rowena and Ian Lanyon 9/10 4776 days 9%
Robert MacLeod-Smith 8/10 4777 days 9%
Soren Storeboerg 8/10 4778 days 9%
Steve Collier 9/10 4780 days 9%
Dick van Doorn 8/10 4780 days 9%
Heini 8/10 4780 days 9%
Barrie Corless 9/10 4780 days 9%
Stig Domander 9/10 4794 days 9%
Rhi 10/10 4812 days 9%
Tobias Forst 8/10 4844 days 9%
Arnoldus Bergmans 9/10 4847 days 9%
Dirk Faupel 9/10 4847 days 9%
Dirk Faupel 9/10 4847 days 9%
Chris Muller 8/10 4847 days 9%
Jo Delbrugge 9/10 4847 days 9%
Sarah and Soren 9/10 4849 days 9%
van Rees 9/10 4852 days 9%
Robin & Sandra Dijke 8/10 4852 days 9%
Jan & Marian 9/10 4855 days 9%
David & Mary-Jane Ryder 10/10 4855 days 9%
Caroline 9/10 4857 days 9%
Leif Sorensen 10/10 4857 days 9%
Andy Lever 5/10 4858 days 7%
Johanna Maria Brigitta 8/10 4858 days 9%
Konny 10/10 4859 days 9%
Theresa 9/10 4859 days 9%
Rudy Witt 9/10 4859 days 9%
Peter Spooner 10/10 4860 days 9%
Gary A 9/10 4873 days 9%
damaca 10/10 4934 days 9%
Janet Arber 9/10 5068 days 9%
Ralph & Marloes Meyers 7/10 5086 days 9%
Derek 10/10 5098 days 9%
Brian & Di 9/10 5100 days 9%
Eric & Liz McKean 10/10 5100 days 9%
Leon van Hengel 8/10 5101 days 9%
Barbara Probert 9/10 5102 days 9%
Kuhu 9/10 5102 days 9%
Richard Dudfield 8/10 5104 days 9%
Robin Adair 10/10 5105 days 9%
Graham Mason 10/10 5105 days 9%
Oppenoorth 9/10 5106 days 9%
Shane Curline 8/10 5108 days 9%
Michael Orme 9/10 5108 days 9%
Peter & Angela Brown 9/10 5108 days 9%
Janey Chamberlain 8/10 5109 days 9%
Joop Ezendam 8/10 5110 days 9%
J Palmer 7/10 5110 days 9%
David Mellard 10/10 5110 days 9%
Nicola Shaw 10/10 5111 days 9%
Diane Johnston 9/10 5111 days 9%
Richard Broughton 9/10 5112 days 9%
Chris & Anne Pearson 6/10 5112 days 8%
Patrick Schaad 9/10 5112 days 9%
Gerstmann 9/10 5112 days 9%
Aln 8/10 5112 days 9%
Fam de Kruyf 8/10 5115 days 9%
Martin 9/10 5116 days 9%
Jack Vermeidem 8/10 5116 days 9%
Jan Visser 8/10 5118 days 9%
Marjan Van Den Braak 7/10 5119 days 9%
Tyson Burnett 8/10 5119 days 9%
John Gray 8/10 5119 days 9%
Colin Lockwood 8/10 5121 days 9%
David Emerick 10/10 5121 days 9%
Hadleigh 9/10 5123 days 9%
Marcus 9/10 5123 days 9%
Manu & Gabi 10/10 5123 days 9%
Peter 8/10 5123 days 9%
Bert Opdam 8/10 5128 days 9%
Anita Aleva 8/10 5130 days 9%
Leslie 9/10 5130 days 9%
Pat MacDonald 9/10 5133 days 9%
Jill Dean 9/10 5133 days 9%
Martin Current 8/10 5133 days 9%
Jane & Regis 9/10 5134 days 9%
Teum and Orselien 6/10 5134 days 8%
Graham 9/10 5134 days 9%
Ross Hughes 8/10 5137 days 9%
Sarraute 9/10 5138 days 9%
Webster 10/10 5139 days 9%
Jarob Brezigar 9/10 5139 days 9%
Lynn Leitch 10/10 5139 days 9%
Lili 6/10 5139 days 8%
Michael Duckert 9/10 5140 days 9%
Loren van Oordt 10/10 5141 days 9%
Tom Hill 10/10 5141 days 9%
D Oostrum 8/10 5141 days 9%
Elinor Bell 9/10 5141 days 9%
Tanner 10/10 5141 days 9%
John Fry 8/10 5141 days 9%
T Chapman 8/10 5141 days 9%
Ewald Waldner 9/10 5142 days 9%
Chris Chasemore 9/10 5142 days 9%
H Schepers 8/10 5142 days 9%
Steve & Susan Allan 9/10 5143 days 9%
Barbara Koegel 8/10 5143 days 9%
Andreas Neo 5/10 5143 days 7%
Grada Anderson 10/10 5146 days 9%
Chamton 8/10 5146 days 9%
Richardr1 10/10 5401 days 9%
Versteeg 8/10 5404 days 9%
Jon van Hanten 8/10 5408 days 9%
Charli Skinner 9/10 5413 days 9%
Kurt 9/10 5416 days 9%
Sophie & Joffrey 7/10 5417 days 9%
Jane and Dave 10/10 5419 days 9%
Peter Aerborg 9/10 5419 days 9%
krisevelyn 8/10 5422 days 9%
steveE 9/10 5422 days 9%
Maria 8/10 5452 days 9%
maggie Webster 7/10 5469 days 9%
katrina Marshall 10/10 5469 days 9%
Bergemann 10/10 5469 days 9%
Don Keith 6/10 5470 days 8%
OMPA 10/10 5471 days 9%
Theresa 10/10 5471 days 9%
George Lepple 10/10 5476 days 9%
Sue S 10/10 5478 days 9%
Ralph 4/10 5480 days 6%
Gerdes 9/10 5480 days 9%
Main 10/10 5484 days 9%
Stanna 9/10 5484 days 9%
Susan & Richard 10/10 5486 days 9%
Zareua Boree 9/10 5486 days 9%
S Millet 9/10 5489 days 9%
Muller Weissert 10/10 5490 days 9%
Frans N 10/10 5491 days 9%
Sue Bennett 8/10 5493 days 9%
Hans de Rijk 7/10 5493 days 9%
David Rich 9/10 5496 days 9%
Walter 8/10 5497 days 9%
Ferth 9/10 5497 days 9%
J Kempeneers 7/10 5497 days 9%
Vandeput 9/10 5497 days 9%
Marco 8/10 5499 days 9%
John Winter 8/10 5508 days 9%
Sinjc Grude 8/10 5508 days 9%
Hoogh 8/10 5508 days 9%
Keith Maplestone 8/10 5510 days 9%
John Rylance 10/10 5510 days 9%
Anne Fri 8/10 5510 days 9%
uleugel 9/10 5520 days 9%
Sabine Locker 8/10 5527 days 9%
Family van Hessem 7/10 5531 days 9%
Alibeare 10/10 5542 days 9%
graemeh1 9/10 5557 days 9%
klinger 10/10 5557 days 9%
wenerz 8/10 5558 days 9%
ilkal 9/10 5559 days 9%
susanl 10/10 5564 days 9%
Robbertsen 6/10 5565 days 8%
pimn 9/10 5567 days 9%
thomash 10/10 5567 days 9%
jamesg 9/10 5571 days 9%
pthreadgood 9/10 5571 days 9%
Gary Brown 10/10 5575 days 9%
Sandra M 8/10 5575 days 9%
dirkdev 9/10 5577 days 9%
Bill Nash 10/10 5577 days 9%
H Simpson 10/10 5577 days 9%
Wolfgang Mages 10/10 5577 days 9%
Colin S 9/10 5581 days 9%
Jenny Davies 8/10 5583 days 9%
Alan Riley 9/10 5585 days 9%
Ann Riley 9/10 5585 days 9%
Hennie Neeleman 9/10 5585 days 9%
Pieter Neeleman 8/10 5585 days 9%
Daniel Alonso 9/10 5585 days 9%
Hans Barth 8/10 5593 days 9%
Jenny and Dave Close 9/10 5596 days 9%
Graham Butt 8/10 5596 days 9%
Claudia 10/10 5596 days 9%
Evan 9/10 5634 days 9%
marleen451 9/10 5634 days 9%
johanw 9/10 5689 days 9%
ulrichk 10/10 5690 days 9%
lee 10/10 5787 days 9%
EvertG 8/10 5798 days 9%
CarolN 8/10 5801 days 9%
Andrew Lonsdale 8/10 5805 days 9%
RosemaryC 7/10 5814 days 9%
Christian Kamm 10/10 5814 days 9%
caroldarren 9/10 5817 days 9%
monikav 10/10 5817 days 9%
Silvia Huerlimann 9/10 5817 days 9%
Kim 8/10 5821 days 9%
PaulC 10/10 5823 days 9%
Thomas1646 9/10 5824 days 9%
HenizV 9/10 5826 days 9%
EstherW 9/10 5826 days 9%
Marc 7/10 5826 days 9%
LosItaly 10/10 5829 days 9%
Rissmann 9/10 5833 days 9%
Mick 10/10 5833 days 9%
Mayer 9/10 5833 days 9%
BernardK 9/10 5834 days 9%
Vivien Williams 10/10 5835 days 9%
Barry Smith 10/10 5837 days 9%
Siemens 8/10 5837 days 9%
Suzie Lechner 10/10 5837 days 9%
Danlin Yang 8/10 5840 days 9%
A 8/10 5841 days 9%
Dalibor 8/10 5851 days 9%
LindaV 8/10 5851 days 9%
RodW 10/10 5851 days 9%
CarstenU 10/10 5851 days 9%
CarolB 10/10 5851 days 9%
Elrik frau 9/10 5851 days 9%
MargaretH 10/10 5852 days 9%
Manfred 8/10 5853 days 9%
Kay 8/10 5860 days 9%
Visken 8/10 5860 days 9%
Pascal 6/10 5868 days 8%
Nienhaus 7/10 5884 days 9%
Anna 5/10 5884 days 7%
Liane 10/10 5885 days 9%
Hove 8/10 5889 days 9%
Roger 10/10 5889 days 9%
Bennie 9/10 5889 days 9%
Ellis 9/10 5889 days 9%
Rob 9/10 5889 days 9%
johanna 9/10 5890 days 9%
Kathrin 9/10 5890 days 9%
tommfuller 10/10 5901 days 9%
philipaindow 9/10 5919 days 9%
Grace 8/10 5921 days 9%
Ellen 9/10 5930 days 9%
Getkate 9/10 5938 days 9%
Sid 10/10 5957 days 9%
Paul 7/10 5994 days 9%
Andrew 10/10 6000 days 9%
Terry 9/10 6007 days 9%
Christine 8/10 6069 days 9%
angela 9/10 6200 days 9%
Hoetnagels 7/10 6200 days 9%
Wolfgang 10/10 6204 days 9%
Ria 9/10 6204 days 9%
Annette Hurst 7/10 6207 days 9%
Klaus 10/10 6208 days 9%
Raymond 9/10 6210 days 9%
Richard Steward 7/10 6214 days 9%
Christine McKenna 9/10 6215 days 9%
Kathy Hawey 9/10 6216 days 9%
Jurg Meister 10/10 6217 days 9%
Jurgen Westphal 7/10 6217 days 9%
Sally and David Wallis 9/10 6217 days 9%
Jackie Horwell 10/10 6218 days 9%
Paula Curtis 10/10 6221 days 9%
Claas 9/10 6230 days 9%
Travis 9/10 6253 days 9%
Maria 9/10 6260 days 9%
Jane Holm 8/10 6265 days 9%
Hans 10/10 6288 days 9%
Chris Gedda 8/10 6291 days 9%
Gabriela Herger 7/10 6299 days 9%
Jane Cameron 10/10 6301 days 9%
Jane Coleman 10/10 6302 days 9%
Lyn Saxon 10/10 6302 days 9%
Samuel Brejeon 8/10 6302 days 9%
Manuel 7/10 6306 days 9%
Ole Weber 9/10 6306 days 9%
Ed van Dael 7/10 6309 days 9%
Rene Schotvanger 9/10 6419 days 9%
Jo 10/10 6419 days 9%
Hans Knappmann 10/10 6419 days 9%
Martjn 8/10 6545 days 9%
Sandra 10/10 6554 days 9%
Ruefli 10/10 6554 days 9%
TeamFlorida 10/10 6554 days 9%
Deloraine 10/10 6554 days 9%
Petra 8/10 6554 days 9%
Anita 8/10 6554 days 9%
Oliver 10/10 6554 days 9%
Petra 10/10 6557 days 9%
Hannah 9/10 6557 days 9%
Michael 9/10 6559 days 9%
M Bekker 8/10 6559 days 9%
sebastian 9/10 6568 days 9%
John Beirne 10/10 6571 days 9%
Angela 9/10 6571 days 9%
Frederik 10/10 6571 days 9%
Pam 10/10 6573 days 9%
Kate 5/10 6575 days 7%
Danyel 9/10 6577 days 9%
Arjan 8/10 6578 days 9%
Manfred 9/10 6580 days 9%
Tom 9/10 6582 days 9%
Stefan 10/10 6587 days 9%
Pini 9/10 6593 days 9%
Gordon 8/10 6594 days 9%
Gillian 9/10 6594 days 9%
frank 8/10 6594 days 9%
Harrison 8/10 6595 days 9%
Hennielene 8/10 6595 days 9%
Beate 9/10 6595 days 9%
Leah 9/10 6595 days 9%
Liz 9/10 6595 days 9%

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

-4.08% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 56 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 -4.02%
198 -4.04%
199 -4.06%
200 -4.08%
201 -4.10%
202 -4.12%
203 -4.14%

Balancing Adjustment

2.01% 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.