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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

88.35%

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 1402 days 100%
S Weslake 10/10 2439 days 25%
Wendy 8/10 2837 days 19%
David 9/10 2837 days 20%
DEBBIE LAMBERT 10/10 2848 days 20%
Charlie Friesen 10/10 2893 days 19%
Guenter 10/10 2923 days 19%
Niels 9/10 2932 days 18%
Tom Brien 8/10 3169 days 15%
Carl 9/10 3196 days 15%
Ferry and Carlyn 9/10 3214 days 15%
Virgil Spruit 9/10 3254 days 14%
GONZALEZ ROBERTO 10/10 3320 days 14%
Megan 10/10 3528 days 11%
Felix Holm 7/10 3606 days 9%
Marion and Ralf 9/10 3625 days 10%
Astrid Egesten 4/10 3632 days 6%
Anna Grafenstein 8/10 3865 days 6%
Alisa 10/10 3868 days 6%
Laura 10/10 3868 days 6%
Jan Legein 10/10 3877 days 6%
Veeh Barrington 7/10 3901 days 6%
Rita Hochstiasser 8/10 3925 days 6%
Sue L 10/10 3928 days 6%
Brian 8/10 4020 days 4%
Christin Woelk 9/10 4229 days 2%
Rouquette 7/10 4275 days 1%
Bucher 10/10 4340 days 0%
Tony Hines 9/10 4341 days 0%
Al Stuart 6/10 4342 days 0%
Moorman 7/10 4346 days 0%
Urs Kloter 8/10 4346 days 0%
Brian Howe 10/10 4348 days 0%
Peter 10/10 4348 days 0%
Reinhard Stahl 9/10 4360 days 0%
Reinhard Stahl 9/10 4360 days 0%
Urs Zuercher 10/10 4360 days 0%
Peter Harden 10/10 4360 days 0%
Reijans 9/10 4361 days 0%
Judy 10/10 4364 days 0%
Henzen 8/10 4364 days 0%
Eric and Jen Popma 10/10 4365 days 0%
Stevie 9/10 4367 days 0%
Christian 10/10 4367 days 0%
Frederick Neilsen 6/10 4367 days 0%
John Freeman 10/10 4371 days 0%
Verest 9/10 4371 days 0%
Kali Lohman 7/10 4371 days 0%
Ton Franke 9/10 4371 days 0%
Stefan Roth 9/10 4371 days 0%
Marjo Cousijn 9/10 4372 days 0%
Megan Child 7/10 4372 days 0%
Roshnie 6/10 4385 days 6%
Adrian Weidell 8/10 4560 days 6%
Dovis Heinemann 10/10 4614 days 6%
Mark Westebring 8/10 4617 days 6%
Sally Gordie 8/10 4617 days 6%
Oliver Hardt 8/10 4619 days 6%
Petr Stepanek 10/10 4622 days 6%
Clausen 9/10 4623 days 6%
Val Phillips 9/10 4623 days 6%
Sabrina Germany 6/10 4625 days 6%
Armin Boehmer 8/10 4625 days 6%
Frank Claassen 7/10 4626 days 6%
tmdilly 7/10 4630 days 6%
Wright 8/10 4634 days 6%
B Sluis 8/10 4639 days 6%
Mark Bogton 9/10 4639 days 6%
Karl Brachtl 10/10 4639 days 6%
Michael Stoll 7/10 4640 days 6%
Martin & Dee Bellarby 10/10 4640 days 6%
Patrick Grant 9/10 4640 days 6%
Miina Hyuonen 8/10 4641 days 6%
Peter & Kate Carmichael 8/10 4641 days 6%
Chris 8/10 4641 days 6%
Stam 8/10 4641 days 6%
Nico Schoots 7/10 4641 days 6%
Russell Eames 8/10 4642 days 6%
Annie 8/10 4642 days 6%
R E Webb 8/10 4642 days 6%
Mickey 7/10 4642 days 6%
Cynthia 10/10 4642 days 6%
Rene 10/10 4642 days 6%
Patricia Fearon 8/10 4642 days 6%
Jacques Duyvestijn 8/10 4643 days 6%
Dominique 9/10 4643 days 6%
Russell 9/10 4644 days 6%
M Abbott 9/10 4644 days 6%
Walter & Heidi Baumann 10/10 4644 days 6%
Houter 8/10 4644 days 6%
Diane Moss 8/10 4644 days 6%
Robert McIlraith 10/10 4645 days 6%
Susie Christensen 8/10 4645 days 6%
Nic Roggeman 9/10 4646 days 6%
Thomas & Ruth Hardmeier 10/10 4647 days 6%
de Weijer 8/10 4647 days 6%
Beyeler 10/10 4647 days 6%
Aled 8/10 4648 days 6%
Lynn Robinson 9/10 4651 days 6%
Suzanne van Kol 9/10 4652 days 6%
Schweiger 10/10 4654 days 6%
Rowena and Ian Lanyon 9/10 4654 days 6%
Robert MacLeod-Smith 8/10 4655 days 6%
Soren Storeboerg 8/10 4656 days 6%
Steve Collier 9/10 4658 days 6%
Dick van Doorn 8/10 4658 days 6%
Heini 8/10 4658 days 6%
Barrie Corless 9/10 4658 days 6%
Stig Domander 9/10 4672 days 6%
Rhi 10/10 4690 days 6%
Tobias Forst 8/10 4722 days 6%
Arnoldus Bergmans 9/10 4725 days 6%
Dirk Faupel 9/10 4725 days 6%
Dirk Faupel 9/10 4725 days 6%
Chris Muller 8/10 4725 days 6%
Jo Delbrugge 9/10 4725 days 6%
Sarah and Soren 9/10 4727 days 6%
van Rees 9/10 4730 days 6%
Robin & Sandra Dijke 8/10 4730 days 6%
Jan & Marian 9/10 4733 days 6%
David & Mary-Jane Ryder 10/10 4733 days 6%
Caroline 9/10 4735 days 6%
Leif Sorensen 10/10 4735 days 6%
Andy Lever 5/10 4736 days 5%
Johanna Maria Brigitta 8/10 4736 days 6%
Konny 10/10 4737 days 6%
Theresa 9/10 4737 days 6%
Rudy Witt 9/10 4737 days 6%
Peter Spooner 10/10 4738 days 6%
Gary A 9/10 4751 days 6%
damaca 10/10 4812 days 6%
Janet Arber 9/10 4946 days 6%
Ralph & Marloes Meyers 7/10 4964 days 6%
Derek 10/10 4976 days 6%
Brian & Di 9/10 4978 days 6%
Eric & Liz McKean 10/10 4978 days 6%
Leon van Hengel 8/10 4979 days 6%
Barbara Probert 9/10 4980 days 6%
Kuhu 9/10 4980 days 6%
Richard Dudfield 8/10 4982 days 6%
Robin Adair 10/10 4983 days 6%
Graham Mason 10/10 4983 days 6%
Oppenoorth 9/10 4984 days 6%
Shane Curline 8/10 4986 days 6%
Michael Orme 9/10 4986 days 6%
Peter & Angela Brown 9/10 4986 days 6%
Janey Chamberlain 8/10 4987 days 6%
Joop Ezendam 8/10 4988 days 6%
J Palmer 7/10 4988 days 6%
David Mellard 10/10 4988 days 6%
Nicola Shaw 10/10 4989 days 6%
Diane Johnston 9/10 4989 days 6%
Richard Broughton 9/10 4990 days 6%
Chris & Anne Pearson 6/10 4990 days 6%
Patrick Schaad 9/10 4990 days 6%
Gerstmann 9/10 4990 days 6%
Aln 8/10 4990 days 6%
Fam de Kruyf 8/10 4993 days 6%
Martin 9/10 4994 days 6%
Jack Vermeidem 8/10 4994 days 6%
Jan Visser 8/10 4996 days 6%
Marjan Van Den Braak 7/10 4997 days 6%
Tyson Burnett 8/10 4997 days 6%
John Gray 8/10 4997 days 6%
Colin Lockwood 8/10 4999 days 6%
David Emerick 10/10 4999 days 6%
Hadleigh 9/10 5001 days 6%
Marcus 9/10 5001 days 6%
Manu & Gabi 10/10 5001 days 6%
Peter 8/10 5001 days 6%
Bert Opdam 8/10 5006 days 6%
Anita Aleva 8/10 5008 days 6%
Leslie 9/10 5008 days 6%
Pat MacDonald 9/10 5011 days 6%
Jill Dean 9/10 5011 days 6%
Martin Current 8/10 5011 days 6%
Jane & Regis 9/10 5012 days 6%
Teum and Orselien 6/10 5012 days 6%
Graham 9/10 5012 days 6%
Ross Hughes 8/10 5015 days 6%
Sarraute 9/10 5016 days 6%
Webster 10/10 5017 days 6%
Jarob Brezigar 9/10 5017 days 6%
Lynn Leitch 10/10 5017 days 6%
Lili 6/10 5017 days 6%
Michael Duckert 9/10 5018 days 6%
Loren van Oordt 10/10 5019 days 6%
Tom Hill 10/10 5019 days 6%
D Oostrum 8/10 5019 days 6%
Elinor Bell 9/10 5019 days 6%
Tanner 10/10 5019 days 6%
John Fry 8/10 5019 days 6%
T Chapman 8/10 5019 days 6%
Ewald Waldner 9/10 5020 days 6%
Chris Chasemore 9/10 5020 days 6%
H Schepers 8/10 5020 days 6%
Steve & Susan Allan 9/10 5021 days 6%
Barbara Koegel 8/10 5021 days 6%
Andreas Neo 5/10 5021 days 5%
Grada Anderson 10/10 5024 days 6%
Chamton 8/10 5024 days 6%
Richardr1 10/10 5279 days 6%
Versteeg 8/10 5282 days 6%
Jon van Hanten 8/10 5286 days 6%
Charli Skinner 9/10 5291 days 6%
Kurt 9/10 5294 days 6%
Sophie & Joffrey 7/10 5295 days 6%
Jane and Dave 10/10 5297 days 6%
Peter Aerborg 9/10 5297 days 6%
krisevelyn 8/10 5300 days 6%
steveE 9/10 5300 days 6%
Maria 8/10 5330 days 6%
maggie Webster 7/10 5347 days 6%
katrina Marshall 10/10 5347 days 6%
Bergemann 10/10 5347 days 6%
Don Keith 6/10 5348 days 6%
OMPA 10/10 5349 days 6%
Theresa 10/10 5349 days 6%
George Lepple 10/10 5354 days 6%
Sue S 10/10 5356 days 6%
Ralph 4/10 5358 days 4%
Gerdes 9/10 5358 days 6%
Main 10/10 5362 days 6%
Stanna 9/10 5362 days 6%
Susan & Richard 10/10 5364 days 6%
Zareua Boree 9/10 5364 days 6%
S Millet 9/10 5367 days 6%
Muller Weissert 10/10 5368 days 6%
Frans N 10/10 5369 days 6%
Sue Bennett 8/10 5371 days 6%
Hans de Rijk 7/10 5371 days 6%
David Rich 9/10 5374 days 6%
Walter 8/10 5375 days 6%
Ferth 9/10 5375 days 6%
J Kempeneers 7/10 5375 days 6%
Vandeput 9/10 5375 days 6%
Marco 8/10 5377 days 6%
John Winter 8/10 5386 days 6%
Sinjc Grude 8/10 5386 days 6%
Hoogh 8/10 5386 days 6%
Keith Maplestone 8/10 5388 days 6%
John Rylance 10/10 5388 days 6%
Anne Fri 8/10 5388 days 6%
uleugel 9/10 5398 days 6%
Sabine Locker 8/10 5405 days 6%
Family van Hessem 7/10 5409 days 6%
Alibeare 10/10 5420 days 6%
graemeh1 9/10 5435 days 6%
klinger 10/10 5435 days 6%
wenerz 8/10 5436 days 6%
ilkal 9/10 5437 days 6%
susanl 10/10 5442 days 6%
Robbertsen 6/10 5443 days 6%
pimn 9/10 5445 days 6%
thomash 10/10 5445 days 6%
jamesg 9/10 5449 days 6%
pthreadgood 9/10 5449 days 6%
Gary Brown 10/10 5453 days 6%
Sandra M 8/10 5453 days 6%
dirkdev 9/10 5455 days 6%
Bill Nash 10/10 5455 days 6%
H Simpson 10/10 5455 days 6%
Wolfgang Mages 10/10 5455 days 6%
Colin S 9/10 5459 days 6%
Jenny Davies 8/10 5461 days 6%
Alan Riley 9/10 5463 days 6%
Ann Riley 9/10 5463 days 6%
Hennie Neeleman 9/10 5463 days 6%
Pieter Neeleman 8/10 5463 days 6%
Daniel Alonso 9/10 5463 days 6%
Hans Barth 8/10 5471 days 6%
Jenny and Dave Close 9/10 5474 days 6%
Graham Butt 8/10 5474 days 6%
Claudia 10/10 5474 days 6%
Evan 9/10 5512 days 6%
marleen451 9/10 5512 days 6%
johanw 9/10 5567 days 6%
ulrichk 10/10 5568 days 6%
lee 10/10 5665 days 6%
EvertG 8/10 5676 days 6%
CarolN 8/10 5679 days 6%
Andrew Lonsdale 8/10 5683 days 6%
RosemaryC 7/10 5692 days 6%
Christian Kamm 10/10 5692 days 6%
caroldarren 9/10 5695 days 6%
monikav 10/10 5695 days 6%
Silvia Huerlimann 9/10 5695 days 6%
Kim 8/10 5699 days 6%
PaulC 10/10 5701 days 6%
Thomas1646 9/10 5702 days 6%
HenizV 9/10 5704 days 6%
EstherW 9/10 5704 days 6%
Marc 7/10 5704 days 6%
LosItaly 10/10 5707 days 6%
Rissmann 9/10 5711 days 6%
Mick 10/10 5711 days 6%
Mayer 9/10 5711 days 6%
BernardK 9/10 5712 days 6%
Vivien Williams 10/10 5713 days 6%
Barry Smith 10/10 5715 days 6%
Siemens 8/10 5715 days 6%
Suzie Lechner 10/10 5715 days 6%
Danlin Yang 8/10 5718 days 6%
A 8/10 5719 days 6%
Dalibor 8/10 5729 days 6%
LindaV 8/10 5729 days 6%
RodW 10/10 5729 days 6%
CarstenU 10/10 5729 days 6%
CarolB 10/10 5729 days 6%
Elrik frau 9/10 5729 days 6%
MargaretH 10/10 5730 days 6%
Manfred 8/10 5731 days 6%
Kay 8/10 5738 days 6%
Visken 8/10 5738 days 6%
Pascal 6/10 5746 days 6%
Nienhaus 7/10 5762 days 6%
Anna 5/10 5762 days 5%
Liane 10/10 5763 days 6%
Hove 8/10 5767 days 6%
Roger 10/10 5767 days 6%
Bennie 9/10 5767 days 6%
Ellis 9/10 5767 days 6%
Rob 9/10 5767 days 6%
johanna 9/10 5768 days 6%
Kathrin 9/10 5768 days 6%
tommfuller 10/10 5779 days 6%
philipaindow 9/10 5797 days 6%
Grace 8/10 5799 days 6%
Ellen 9/10 5808 days 6%
Getkate 9/10 5816 days 6%
Sid 10/10 5835 days 6%
Paul 7/10 5872 days 6%
Andrew 10/10 5878 days 6%
Terry 9/10 5885 days 6%
Christine 8/10 5947 days 6%
angela 9/10 6078 days 6%
Hoetnagels 7/10 6078 days 6%
Wolfgang 10/10 6082 days 6%
Ria 9/10 6082 days 6%
Annette Hurst 7/10 6085 days 6%
Klaus 10/10 6086 days 6%
Raymond 9/10 6088 days 6%
Richard Steward 7/10 6092 days 6%
Christine McKenna 9/10 6093 days 6%
Kathy Hawey 9/10 6094 days 6%
Jurg Meister 10/10 6095 days 6%
Jurgen Westphal 7/10 6095 days 6%
Sally and David Wallis 9/10 6095 days 6%
Jackie Horwell 10/10 6096 days 6%
Paula Curtis 10/10 6099 days 6%
Claas 9/10 6108 days 6%
Travis 9/10 6131 days 6%
Maria 9/10 6138 days 6%
Jane Holm 8/10 6143 days 6%
Hans 10/10 6166 days 6%
Chris Gedda 8/10 6169 days 6%
Gabriela Herger 7/10 6177 days 6%
Jane Cameron 10/10 6179 days 6%
Jane Coleman 10/10 6180 days 6%
Lyn Saxon 10/10 6180 days 6%
Samuel Brejeon 8/10 6180 days 6%
Manuel 7/10 6184 days 6%
Ole Weber 9/10 6184 days 6%
Ed van Dael 7/10 6187 days 6%
Rene Schotvanger 9/10 6297 days 6%
Jo 10/10 6297 days 6%
Hans Knappmann 10/10 6297 days 6%
Martjn 8/10 6423 days 6%
Sandra 10/10 6432 days 6%
Ruefli 10/10 6432 days 6%
TeamFlorida 10/10 6432 days 6%
Deloraine 10/10 6432 days 6%
Petra 8/10 6432 days 6%
Anita 8/10 6432 days 6%
Oliver 10/10 6432 days 6%
Petra 10/10 6435 days 6%
Hannah 9/10 6435 days 6%
Michael 9/10 6437 days 6%
M Bekker 8/10 6437 days 6%
sebastian 9/10 6446 days 6%
John Beirne 10/10 6449 days 6%
Angela 9/10 6449 days 6%
Frederik 10/10 6449 days 6%
Pam 10/10 6451 days 6%
Kate 5/10 6453 days 5%
Danyel 9/10 6455 days 6%
Arjan 8/10 6456 days 6%
Manfred 9/10 6458 days 6%
Tom 9/10 6460 days 6%
Stefan 10/10 6465 days 6%
Pini 9/10 6471 days 6%
Gordon 8/10 6472 days 6%
Gillian 9/10 6472 days 6%
frank 8/10 6472 days 6%
Harrison 8/10 6473 days 6%
Hennielene 8/10 6473 days 6%
Beate 9/10 6473 days 6%
Leah 9/10 6473 days 6%
Liz 9/10 6473 days 6%

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

-3.89% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 49 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 -3.84%
198 -3.86%
199 -3.87%
200 -3.89%
201 -3.91%
202 -3.93%
203 -3.95%
… …

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.