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

87.96%

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 2050 days 100%
S Weslake 10/10 3087 days 54%
Wendy 8/10 3485 days 36%
David 9/10 3485 days 36%
DEBBIE LAMBERT 10/10 3496 days 36%
Charlie Friesen 10/10 3541 days 34%
Guenter 10/10 3572 days 33%
Niels 9/10 3580 days 32%
Tom Brien 8/10 3817 days 21%
Carl 9/10 3844 days 21%
Ferry and Carlyn 9/10 3862 days 20%
Virgil Spruit 9/10 3902 days 18%
GONZALEZ ROBERTO 10/10 3969 days 15%
Megan 10/10 4176 days 6%
Felix Holm 7/10 4254 days 2%
Marion and Ralf 9/10 4273 days 2%
Astrid Egesten 4/10 4280 days 0%
Anna Grafenstein 8/10 4513 days 19%
Alisa 10/10 4516 days 20%
Laura 10/10 4516 days 20%
Jan Legein 10/10 4525 days 20%
Veeh Barrington 7/10 4549 days 18%
Rita Hochstiasser 8/10 4573 days 19%
Sue L 10/10 4576 days 20%
Brian 8/10 4668 days 19%
Christin Woelk 9/10 4877 days 19%
Rouquette 7/10 4923 days 18%
Bucher 10/10 4988 days 20%
Tony Hines 9/10 4989 days 19%
Al Stuart 6/10 4990 days 17%
Moorman 7/10 4994 days 18%
Urs Kloter 8/10 4994 days 19%
Brian Howe 10/10 4996 days 20%
Peter 10/10 4996 days 20%
Reinhard Stahl 9/10 5008 days 19%
Reinhard Stahl 9/10 5008 days 19%
Urs Zuercher 10/10 5008 days 20%
Peter Harden 10/10 5008 days 20%
Reijans 9/10 5009 days 19%
Judy 10/10 5012 days 20%
Henzen 8/10 5012 days 19%
Eric and Jen Popma 10/10 5013 days 20%
Stevie 9/10 5015 days 19%
Christian 10/10 5015 days 20%
Frederick Neilsen 6/10 5015 days 17%
John Freeman 10/10 5019 days 20%
Verest 9/10 5019 days 19%
Kali Lohman 7/10 5019 days 18%
Ton Franke 9/10 5019 days 19%
Stefan Roth 9/10 5019 days 19%
Marjo Cousijn 9/10 5020 days 19%
Megan Child 7/10 5020 days 18%
Roshnie 6/10 5033 days 17%
Adrian Weidell 8/10 5208 days 19%
Dovis Heinemann 10/10 5262 days 20%
Mark Westebring 8/10 5265 days 19%
Sally Gordie 8/10 5265 days 19%
Oliver Hardt 8/10 5267 days 19%
Petr Stepanek 10/10 5270 days 20%
Clausen 9/10 5271 days 19%
Val Phillips 9/10 5271 days 19%
Sabrina Germany 6/10 5273 days 17%
Armin Boehmer 8/10 5273 days 19%
Frank Claassen 7/10 5274 days 18%
tmdilly 7/10 5278 days 18%
Wright 8/10 5282 days 19%
B Sluis 8/10 5287 days 19%
Mark Bogton 9/10 5287 days 19%
Karl Brachtl 10/10 5287 days 20%
Michael Stoll 7/10 5288 days 18%
Martin & Dee Bellarby 10/10 5288 days 20%
Patrick Grant 9/10 5288 days 19%
Miina Hyuonen 8/10 5289 days 19%
Peter & Kate Carmichael 8/10 5289 days 19%
Chris 8/10 5289 days 19%
Stam 8/10 5289 days 19%
Nico Schoots 7/10 5289 days 18%
Russell Eames 8/10 5290 days 19%
Annie 8/10 5290 days 19%
R E Webb 8/10 5290 days 19%
Mickey 7/10 5290 days 18%
Cynthia 10/10 5290 days 20%
Rene 10/10 5290 days 20%
Patricia Fearon 8/10 5290 days 19%
Jacques Duyvestijn 8/10 5291 days 19%
Dominique 9/10 5291 days 19%
Russell 9/10 5292 days 19%
M Abbott 9/10 5292 days 19%
Walter & Heidi Baumann 10/10 5292 days 20%
Houter 8/10 5292 days 19%
Diane Moss 8/10 5292 days 19%
Robert McIlraith 10/10 5293 days 20%
Susie Christensen 8/10 5293 days 19%
Nic Roggeman 9/10 5294 days 19%
Thomas & Ruth Hardmeier 10/10 5295 days 20%
de Weijer 8/10 5295 days 19%
Beyeler 10/10 5295 days 20%
Aled 8/10 5296 days 19%
Lynn Robinson 9/10 5299 days 19%
Suzanne van Kol 9/10 5300 days 19%
Schweiger 10/10 5302 days 20%
Rowena and Ian Lanyon 9/10 5302 days 19%
Robert MacLeod-Smith 8/10 5303 days 19%
Soren Storeboerg 8/10 5304 days 19%
Steve Collier 9/10 5306 days 19%
Dick van Doorn 8/10 5306 days 19%
Heini 8/10 5306 days 19%
Barrie Corless 9/10 5306 days 19%
Stig Domander 9/10 5320 days 19%
Rhi 10/10 5338 days 20%
Tobias Forst 8/10 5370 days 19%
Arnoldus Bergmans 9/10 5373 days 19%
Dirk Faupel 9/10 5373 days 19%
Dirk Faupel 9/10 5373 days 19%
Chris Muller 8/10 5373 days 19%
Jo Delbrugge 9/10 5373 days 19%
Sarah and Soren 9/10 5375 days 19%
van Rees 9/10 5378 days 19%
Robin & Sandra Dijke 8/10 5378 days 19%
Jan & Marian 9/10 5381 days 19%
David & Mary-Jane Ryder 10/10 5381 days 20%
Caroline 9/10 5383 days 19%
Leif Sorensen 10/10 5383 days 20%
Andy Lever 5/10 5384 days 14%
Johanna Maria Brigitta 8/10 5384 days 19%
Konny 10/10 5385 days 20%
Theresa 9/10 5385 days 19%
Rudy Witt 9/10 5385 days 19%
Peter Spooner 10/10 5386 days 20%
Gary A 9/10 5399 days 19%
damaca 10/10 5460 days 20%
Janet Arber 9/10 5594 days 19%
Ralph & Marloes Meyers 7/10 5612 days 18%
Derek 10/10 5624 days 20%
Brian & Di 9/10 5626 days 19%
Eric & Liz McKean 10/10 5626 days 20%
Leon van Hengel 8/10 5627 days 19%
Barbara Probert 9/10 5628 days 19%
Kuhu 9/10 5628 days 19%
Richard Dudfield 8/10 5630 days 19%
Robin Adair 10/10 5631 days 20%
Graham Mason 10/10 5631 days 20%
Oppenoorth 9/10 5632 days 19%
Shane Curline 8/10 5634 days 19%
Michael Orme 9/10 5634 days 19%
Peter & Angela Brown 9/10 5634 days 19%
Janey Chamberlain 8/10 5635 days 19%
Joop Ezendam 8/10 5636 days 19%
J Palmer 7/10 5636 days 18%
David Mellard 10/10 5636 days 20%
Nicola Shaw 10/10 5637 days 20%
Diane Johnston 9/10 5637 days 19%
Richard Broughton 9/10 5638 days 19%
Chris & Anne Pearson 6/10 5638 days 17%
Patrick Schaad 9/10 5638 days 19%
Gerstmann 9/10 5638 days 19%
Aln 8/10 5638 days 19%
Fam de Kruyf 8/10 5641 days 19%
Martin 9/10 5642 days 19%
Jack Vermeidem 8/10 5642 days 19%
Jan Visser 8/10 5644 days 19%
Marjan Van Den Braak 7/10 5645 days 18%
Tyson Burnett 8/10 5645 days 19%
John Gray 8/10 5645 days 19%
Colin Lockwood 8/10 5647 days 19%
David Emerick 10/10 5647 days 20%
Hadleigh 9/10 5649 days 19%
Marcus 9/10 5649 days 19%
Manu & Gabi 10/10 5649 days 20%
Peter 8/10 5649 days 19%
Bert Opdam 8/10 5654 days 19%
Anita Aleva 8/10 5656 days 19%
Leslie 9/10 5656 days 19%
Pat MacDonald 9/10 5659 days 19%
Jill Dean 9/10 5659 days 19%
Martin Current 8/10 5659 days 19%
Jane & Regis 9/10 5660 days 19%
Teum and Orselien 6/10 5660 days 17%
Graham 9/10 5660 days 19%
Ross Hughes 8/10 5663 days 19%
Sarraute 9/10 5664 days 19%
Webster 10/10 5665 days 20%
Jarob Brezigar 9/10 5665 days 19%
Lynn Leitch 10/10 5665 days 20%
Lili 6/10 5665 days 17%
Michael Duckert 9/10 5666 days 19%
Loren van Oordt 10/10 5667 days 20%
Tom Hill 10/10 5667 days 20%
D Oostrum 8/10 5667 days 19%
Elinor Bell 9/10 5667 days 19%
Tanner 10/10 5667 days 20%
John Fry 8/10 5667 days 19%
T Chapman 8/10 5667 days 19%
Ewald Waldner 9/10 5668 days 19%
Chris Chasemore 9/10 5668 days 19%
H Schepers 8/10 5668 days 19%
Steve & Susan Allan 9/10 5669 days 19%
Barbara Koegel 8/10 5669 days 19%
Andreas Neo 5/10 5669 days 14%
Grada Anderson 10/10 5672 days 20%
Chamton 8/10 5672 days 19%
Richardr1 10/10 5927 days 20%
Versteeg 8/10 5930 days 19%
Jon van Hanten 8/10 5934 days 19%
Charli Skinner 9/10 5939 days 19%
Kurt 9/10 5942 days 19%
Sophie & Joffrey 7/10 5943 days 18%
Jane and Dave 10/10 5945 days 20%
Peter Aerborg 9/10 5945 days 19%
krisevelyn 8/10 5948 days 19%
steveE 9/10 5948 days 19%
Maria 8/10 5978 days 19%
maggie Webster 7/10 5995 days 18%
katrina Marshall 10/10 5995 days 20%
Bergemann 10/10 5995 days 20%
Don Keith 6/10 5996 days 17%
OMPA 10/10 5997 days 20%
Theresa 10/10 5997 days 20%
George Lepple 10/10 6002 days 20%
Sue S 10/10 6004 days 20%
Ralph 4/10 6006 days 12%
Gerdes 9/10 6006 days 19%
Main 10/10 6010 days 20%
Stanna 9/10 6010 days 19%
Susan & Richard 10/10 6012 days 20%
Zareua Boree 9/10 6012 days 19%
S Millet 9/10 6015 days 19%
Muller Weissert 10/10 6016 days 20%
Frans N 10/10 6017 days 20%
Sue Bennett 8/10 6019 days 19%
Hans de Rijk 7/10 6019 days 18%
David Rich 9/10 6022 days 19%
Walter 8/10 6023 days 19%
Ferth 9/10 6023 days 19%
J Kempeneers 7/10 6023 days 18%
Vandeput 9/10 6023 days 19%
Marco 8/10 6025 days 19%
John Winter 8/10 6034 days 19%
Sinjc Grude 8/10 6034 days 19%
Hoogh 8/10 6034 days 19%
Keith Maplestone 8/10 6036 days 19%
John Rylance 10/10 6036 days 20%
Anne Fri 8/10 6036 days 19%
uleugel 9/10 6046 days 19%
Sabine Locker 8/10 6053 days 19%
Family van Hessem 7/10 6057 days 18%
Alibeare 10/10 6068 days 20%
graemeh1 9/10 6083 days 19%
klinger 10/10 6083 days 20%
wenerz 8/10 6084 days 19%
ilkal 9/10 6085 days 19%
susanl 10/10 6090 days 20%
Robbertsen 6/10 6091 days 17%
pimn 9/10 6093 days 19%
thomash 10/10 6093 days 20%
jamesg 9/10 6097 days 19%
pthreadgood 9/10 6097 days 19%
Gary Brown 10/10 6101 days 20%
Sandra M 8/10 6101 days 19%
dirkdev 9/10 6103 days 19%
Bill Nash 10/10 6103 days 20%
H Simpson 10/10 6103 days 20%
Wolfgang Mages 10/10 6103 days 20%
Colin S 9/10 6107 days 19%
Jenny Davies 8/10 6109 days 19%
Alan Riley 9/10 6111 days 19%
Ann Riley 9/10 6111 days 19%
Hennie Neeleman 9/10 6111 days 19%
Pieter Neeleman 8/10 6111 days 19%
Daniel Alonso 9/10 6111 days 19%
Hans Barth 8/10 6119 days 19%
Jenny and Dave Close 9/10 6122 days 19%
Graham Butt 8/10 6122 days 19%
Claudia 10/10 6122 days 20%
Evan 9/10 6160 days 19%
marleen451 9/10 6160 days 19%
johanw 9/10 6215 days 19%
ulrichk 10/10 6216 days 20%
lee 10/10 6313 days 20%
EvertG 8/10 6324 days 19%
CarolN 8/10 6327 days 19%
Andrew Lonsdale 8/10 6331 days 19%
RosemaryC 7/10 6340 days 18%
Christian Kamm 10/10 6340 days 20%
caroldarren 9/10 6343 days 19%
monikav 10/10 6343 days 20%
Silvia Huerlimann 9/10 6343 days 19%
Kim 8/10 6347 days 19%
PaulC 10/10 6349 days 20%
Thomas1646 9/10 6350 days 19%
HenizV 9/10 6353 days 19%
EstherW 9/10 6353 days 19%
Marc 7/10 6353 days 18%
LosItaly 10/10 6355 days 20%
Rissmann 9/10 6359 days 19%
Mick 10/10 6360 days 20%
Mayer 9/10 6360 days 19%
BernardK 9/10 6360 days 19%
Vivien Williams 10/10 6361 days 20%
Barry Smith 10/10 6363 days 20%
Siemens 8/10 6363 days 19%
Suzie Lechner 10/10 6363 days 20%
Danlin Yang 8/10 6366 days 19%
A 8/10 6367 days 19%
Dalibor 8/10 6377 days 19%
LindaV 8/10 6377 days 19%
RodW 10/10 6377 days 20%
CarstenU 10/10 6377 days 20%
CarolB 10/10 6377 days 20%
Elrik frau 9/10 6377 days 19%
MargaretH 10/10 6378 days 20%
Manfred 8/10 6380 days 19%
Kay 8/10 6387 days 19%
Visken 8/10 6387 days 19%
Pascal 6/10 6394 days 17%
Nienhaus 7/10 6410 days 18%
Anna 5/10 6410 days 14%
Liane 10/10 6411 days 20%
Hove 8/10 6415 days 19%
Roger 10/10 6415 days 20%
Bennie 9/10 6415 days 19%
Ellis 9/10 6415 days 19%
Rob 9/10 6415 days 19%
johanna 9/10 6416 days 19%
Kathrin 9/10 6416 days 19%
tommfuller 10/10 6427 days 20%
philipaindow 9/10 6445 days 19%
Grace 8/10 6448 days 19%
Ellen 9/10 6457 days 19%
Getkate 9/10 6465 days 19%
Sid 10/10 6484 days 20%
Paul 7/10 6521 days 18%
Andrew 10/10 6527 days 20%
Terry 9/10 6534 days 19%
Christine 8/10 6595 days 19%
angela 9/10 6726 days 19%
Hoetnagels 7/10 6726 days 18%
Wolfgang 10/10 6730 days 20%
Ria 9/10 6730 days 19%
Annette Hurst 7/10 6733 days 18%
Klaus 10/10 6734 days 20%
Raymond 9/10 6736 days 19%
Richard Steward 7/10 6740 days 18%
Christine McKenna 9/10 6741 days 19%
Kathy Hawey 9/10 6742 days 19%
Jurg Meister 10/10 6743 days 20%
Jurgen Westphal 7/10 6743 days 18%
Sally and David Wallis 9/10 6743 days 19%
Jackie Horwell 10/10 6744 days 20%
Paula Curtis 10/10 6747 days 20%
Claas 9/10 6756 days 19%
Travis 9/10 6779 days 19%
Maria 9/10 6786 days 19%
Jane Holm 8/10 6791 days 19%
Hans 10/10 6814 days 20%
Chris Gedda 8/10 6817 days 19%
Gabriela Herger 7/10 6825 days 18%
Jane Cameron 10/10 6827 days 20%
Jane Coleman 10/10 6828 days 20%
Lyn Saxon 10/10 6828 days 20%
Samuel Brejeon 8/10 6828 days 19%
Manuel 7/10 6832 days 18%
Ole Weber 9/10 6832 days 19%
Ed van Dael 7/10 6835 days 18%
Rene Schotvanger 9/10 6945 days 19%
Jo 10/10 6945 days 20%
Hans Knappmann 10/10 6945 days 20%
Martjn 8/10 7071 days 19%
Sandra 10/10 7080 days 20%
Ruefli 10/10 7080 days 20%
TeamFlorida 10/10 7080 days 20%
Deloraine 10/10 7080 days 20%
Petra 8/10 7080 days 19%
Anita 8/10 7080 days 19%
Oliver 10/10 7080 days 20%
Petra 10/10 7083 days 20%
Hannah 9/10 7083 days 19%
Michael 9/10 7085 days 19%
M Bekker 8/10 7085 days 19%
sebastian 9/10 7094 days 19%
John Beirne 10/10 7097 days 20%
Angela 9/10 7097 days 19%
Frederik 10/10 7097 days 20%
Pam 10/10 7099 days 20%
Kate 5/10 7101 days 14%
Danyel 9/10 7103 days 19%
Arjan 8/10 7104 days 19%
Manfred 9/10 7106 days 19%
Tom 9/10 7108 days 19%
Stefan 10/10 7113 days 20%
Pini 9/10 7119 days 19%
Gordon 8/10 7120 days 19%
Gillian 9/10 7120 days 19%
frank 8/10 7120 days 19%
Harrison 8/10 7121 days 19%
Hennielene 8/10 7121 days 19%
Beate 9/10 7121 days 19%
Leah 9/10 7121 days 19%
Liz 9/10 7121 days 19%

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

-2.26% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 116 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 -2.23%
198 -2.24%
199 -2.25%
200 -2.26%
201 -2.27%
202 -2.29%
203 -2.30%
… …

Balancing Adjustment

1.69% 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

87%

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.