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Ranking Score Explained

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.

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 2078 days 100%
S Weslake 10/10 3115 days 54%
Wendy 8/10 3513 days 36%
David 9/10 3513 days 36%
DEBBIE LAMBERT 10/10 3524 days 36%
Charlie Friesen 10/10 3569 days 34%
Guenter 10/10 3599 days 33%
Niels 9/10 3608 days 32%
Tom Brien 8/10 3845 days 21%
Carl 9/10 3872 days 20%
Ferry and Carlyn 9/10 3890 days 19%
Virgil Spruit 9/10 3930 days 18%
GONZALEZ ROBERTO 10/10 3996 days 15%
Megan 10/10 4204 days 6%
Felix Holm 7/10 4282 days 2%
Marion and Ralf 9/10 4301 days 1%
Astrid Egesten 4/10 4308 days 0%
Anna Grafenstein 8/10 4541 days 20%
Alisa 10/10 4544 days 21%
Laura 10/10 4544 days 21%
Jan Legein 10/10 4553 days 21%
Veeh Barrington 7/10 4577 days 19%
Rita Hochstiasser 8/10 4601 days 20%
Sue L 10/10 4604 days 21%
Brian 8/10 4696 days 20%
Christin Woelk 9/10 4905 days 20%
Rouquette 7/10 4951 days 19%
Bucher 10/10 5016 days 21%
Tony Hines 9/10 5017 days 20%
Al Stuart 6/10 5018 days 17%
Moorman 7/10 5022 days 19%
Urs Kloter 8/10 5022 days 20%
Brian Howe 10/10 5024 days 21%
Peter 10/10 5024 days 21%
Reinhard Stahl 9/10 5036 days 20%
Reinhard Stahl 9/10 5036 days 20%
Urs Zuercher 10/10 5036 days 21%
Peter Harden 10/10 5036 days 21%
Reijans 9/10 5037 days 20%
Judy 10/10 5040 days 21%
Henzen 8/10 5040 days 20%
Eric and Jen Popma 10/10 5041 days 21%
Stevie 9/10 5043 days 20%
Christian 10/10 5043 days 21%
Frederick Neilsen 6/10 5043 days 17%
John Freeman 10/10 5047 days 21%
Verest 9/10 5047 days 20%
Kali Lohman 7/10 5047 days 19%
Ton Franke 9/10 5047 days 20%
Stefan Roth 9/10 5047 days 20%
Marjo Cousijn 9/10 5048 days 20%
Megan Child 7/10 5048 days 19%
Roshnie 6/10 5061 days 17%
Adrian Weidell 8/10 5236 days 20%
Dovis Heinemann 10/10 5290 days 21%
Mark Westebring 8/10 5293 days 20%
Sally Gordie 8/10 5293 days 20%
Oliver Hardt 8/10 5295 days 20%
Petr Stepanek 10/10 5298 days 21%
Clausen 9/10 5299 days 20%
Val Phillips 9/10 5299 days 20%
Sabrina Germany 6/10 5301 days 17%
Armin Boehmer 8/10 5301 days 20%
Frank Claassen 7/10 5302 days 19%
tmdilly 7/10 5306 days 19%
Wright 8/10 5310 days 20%
B Sluis 8/10 5315 days 20%
Mark Bogton 9/10 5315 days 20%
Karl Brachtl 10/10 5315 days 21%
Michael Stoll 7/10 5316 days 19%
Martin & Dee Bellarby 10/10 5316 days 21%
Patrick Grant 9/10 5316 days 20%
Miina Hyuonen 8/10 5317 days 20%
Peter & Kate Carmichael 8/10 5317 days 20%
Chris 8/10 5317 days 20%
Stam 8/10 5317 days 20%
Nico Schoots 7/10 5317 days 19%
Russell Eames 8/10 5318 days 20%
Annie 8/10 5318 days 20%
R E Webb 8/10 5318 days 20%
Mickey 7/10 5318 days 19%
Cynthia 10/10 5318 days 21%
Rene 10/10 5318 days 21%
Patricia Fearon 8/10 5318 days 20%
Jacques Duyvestijn 8/10 5319 days 20%
Dominique 9/10 5319 days 20%
Russell 9/10 5320 days 20%
M Abbott 9/10 5320 days 20%
Walter & Heidi Baumann 10/10 5320 days 21%
Houter 8/10 5320 days 20%
Diane Moss 8/10 5320 days 20%
Robert McIlraith 10/10 5321 days 21%
Susie Christensen 8/10 5321 days 20%
Nic Roggeman 9/10 5322 days 20%
Thomas & Ruth Hardmeier 10/10 5323 days 21%
de Weijer 8/10 5323 days 20%
Beyeler 10/10 5323 days 21%
Aled 8/10 5324 days 20%
Lynn Robinson 9/10 5327 days 20%
Suzanne van Kol 9/10 5328 days 20%
Schweiger 10/10 5330 days 21%
Rowena and Ian Lanyon 9/10 5330 days 20%
Robert MacLeod-Smith 8/10 5331 days 20%
Soren Storeboerg 8/10 5332 days 20%
Steve Collier 9/10 5334 days 20%
Dick van Doorn 8/10 5334 days 20%
Heini 8/10 5334 days 20%
Barrie Corless 9/10 5334 days 20%
Stig Domander 9/10 5348 days 20%
Rhi 10/10 5366 days 21%
Tobias Forst 8/10 5398 days 20%
Arnoldus Bergmans 9/10 5401 days 20%
Dirk Faupel 9/10 5401 days 20%
Dirk Faupel 9/10 5401 days 20%
Chris Muller 8/10 5401 days 20%
Jo Delbrugge 9/10 5401 days 20%
Sarah and Soren 9/10 5403 days 20%
van Rees 9/10 5406 days 20%
Robin & Sandra Dijke 8/10 5406 days 20%
Jan & Marian 9/10 5409 days 20%
David & Mary-Jane Ryder 10/10 5409 days 21%
Caroline 9/10 5411 days 20%
Leif Sorensen 10/10 5411 days 21%
Andy Lever 5/10 5412 days 15%
Johanna Maria Brigitta 8/10 5412 days 20%
Konny 10/10 5413 days 21%
Theresa 9/10 5413 days 20%
Rudy Witt 9/10 5413 days 20%
Peter Spooner 10/10 5414 days 21%
Gary A 9/10 5427 days 20%
damaca 10/10 5488 days 21%
Janet Arber 9/10 5622 days 20%
Ralph & Marloes Meyers 7/10 5640 days 19%
Derek 10/10 5652 days 21%
Brian & Di 9/10 5654 days 20%
Eric & Liz McKean 10/10 5654 days 21%
Leon van Hengel 8/10 5655 days 20%
Barbara Probert 9/10 5656 days 20%
Kuhu 9/10 5656 days 20%
Richard Dudfield 8/10 5658 days 20%
Robin Adair 10/10 5659 days 21%
Graham Mason 10/10 5659 days 21%
Oppenoorth 9/10 5660 days 20%
Shane Curline 8/10 5662 days 20%
Michael Orme 9/10 5662 days 20%
Peter & Angela Brown 9/10 5662 days 20%
Janey Chamberlain 8/10 5663 days 20%
Joop Ezendam 8/10 5664 days 20%
J Palmer 7/10 5664 days 19%
David Mellard 10/10 5664 days 21%
Nicola Shaw 10/10 5665 days 21%
Diane Johnston 9/10 5665 days 20%
Richard Broughton 9/10 5666 days 20%
Chris & Anne Pearson 6/10 5666 days 17%
Patrick Schaad 9/10 5666 days 20%
Gerstmann 9/10 5666 days 20%
Aln 8/10 5666 days 20%
Fam de Kruyf 8/10 5669 days 20%
Martin 9/10 5670 days 20%
Jack Vermeidem 8/10 5670 days 20%
Jan Visser 8/10 5672 days 20%
Marjan Van Den Braak 7/10 5673 days 19%
Tyson Burnett 8/10 5673 days 20%
John Gray 8/10 5673 days 20%
Colin Lockwood 8/10 5675 days 20%
David Emerick 10/10 5675 days 21%
Hadleigh 9/10 5677 days 20%
Marcus 9/10 5677 days 20%
Manu & Gabi 10/10 5677 days 21%
Peter 8/10 5677 days 20%
Bert Opdam 8/10 5682 days 20%
Anita Aleva 8/10 5684 days 20%
Leslie 9/10 5684 days 20%
Pat MacDonald 9/10 5687 days 20%
Jill Dean 9/10 5687 days 20%
Martin Current 8/10 5687 days 20%
Jane & Regis 9/10 5688 days 20%
Teum and Orselien 6/10 5688 days 17%
Graham 9/10 5688 days 20%
Ross Hughes 8/10 5691 days 20%
Sarraute 9/10 5692 days 20%
Webster 10/10 5693 days 21%
Jarob Brezigar 9/10 5693 days 20%
Lynn Leitch 10/10 5693 days 21%
Lili 6/10 5693 days 17%
Michael Duckert 9/10 5694 days 20%
Loren van Oordt 10/10 5695 days 21%
Tom Hill 10/10 5695 days 21%
D Oostrum 8/10 5695 days 20%
Elinor Bell 9/10 5695 days 20%
Tanner 10/10 5695 days 21%
John Fry 8/10 5695 days 20%
T Chapman 8/10 5695 days 20%
Ewald Waldner 9/10 5696 days 20%
Chris Chasemore 9/10 5696 days 20%
H Schepers 8/10 5696 days 20%
Steve & Susan Allan 9/10 5697 days 20%
Barbara Koegel 8/10 5697 days 20%
Andreas Neo 5/10 5697 days 15%
Grada Anderson 10/10 5700 days 21%
Chamton 8/10 5700 days 20%
Richardr1 10/10 5955 days 21%
Versteeg 8/10 5958 days 20%
Jon van Hanten 8/10 5962 days 20%
Charli Skinner 9/10 5967 days 20%
Kurt 9/10 5970 days 20%
Sophie & Joffrey 7/10 5971 days 19%
Jane and Dave 10/10 5973 days 21%
Peter Aerborg 9/10 5973 days 20%
krisevelyn 8/10 5976 days 20%
steveE 9/10 5976 days 20%
Maria 8/10 6006 days 20%
maggie Webster 7/10 6023 days 19%
katrina Marshall 10/10 6023 days 21%
Bergemann 10/10 6023 days 21%
Don Keith 6/10 6024 days 17%
OMPA 10/10 6025 days 21%
Theresa 10/10 6025 days 21%
George Lepple 10/10 6030 days 21%
Sue S 10/10 6032 days 21%
Ralph 4/10 6034 days 13%
Gerdes 9/10 6034 days 20%
Main 10/10 6038 days 21%
Stanna 9/10 6038 days 20%
Susan & Richard 10/10 6040 days 21%
Zareua Boree 9/10 6040 days 20%
S Millet 9/10 6043 days 20%
Muller Weissert 10/10 6044 days 21%
Frans N 10/10 6045 days 21%
Sue Bennett 8/10 6047 days 20%
Hans de Rijk 7/10 6047 days 19%
David Rich 9/10 6050 days 20%
Walter 8/10 6051 days 20%
Ferth 9/10 6051 days 20%
J Kempeneers 7/10 6051 days 19%
Vandeput 9/10 6051 days 20%
Marco 8/10 6053 days 20%
John Winter 8/10 6062 days 20%
Sinjc Grude 8/10 6062 days 20%
Hoogh 8/10 6062 days 20%
Keith Maplestone 8/10 6064 days 20%
John Rylance 10/10 6064 days 21%
Anne Fri 8/10 6064 days 20%
uleugel 9/10 6074 days 20%
Sabine Locker 8/10 6081 days 20%
Family van Hessem 7/10 6085 days 19%
Alibeare 10/10 6096 days 21%
graemeh1 9/10 6111 days 20%
klinger 10/10 6111 days 21%
wenerz 8/10 6112 days 20%
ilkal 9/10 6113 days 20%
susanl 10/10 6118 days 21%
Robbertsen 6/10 6119 days 17%
pimn 9/10 6121 days 20%
thomash 10/10 6121 days 21%
jamesg 9/10 6125 days 20%
pthreadgood 9/10 6125 days 20%
Gary Brown 10/10 6129 days 21%
Sandra M 8/10 6129 days 20%
dirkdev 9/10 6131 days 20%
Bill Nash 10/10 6131 days 21%
H Simpson 10/10 6131 days 21%
Wolfgang Mages 10/10 6131 days 21%
Colin S 9/10 6135 days 20%
Jenny Davies 8/10 6137 days 20%
Alan Riley 9/10 6139 days 20%
Ann Riley 9/10 6139 days 20%
Hennie Neeleman 9/10 6139 days 20%
Pieter Neeleman 8/10 6139 days 20%
Daniel Alonso 9/10 6139 days 20%
Hans Barth 8/10 6147 days 20%
Jenny and Dave Close 9/10 6150 days 20%
Graham Butt 8/10 6150 days 20%
Claudia 10/10 6150 days 21%
Evan 9/10 6188 days 20%
marleen451 9/10 6188 days 20%
johanw 9/10 6243 days 20%
ulrichk 10/10 6244 days 21%
lee 10/10 6341 days 21%
EvertG 8/10 6352 days 20%
CarolN 8/10 6355 days 20%
Andrew Lonsdale 8/10 6359 days 20%
RosemaryC 7/10 6368 days 19%
Christian Kamm 10/10 6368 days 21%
caroldarren 9/10 6371 days 20%
monikav 10/10 6371 days 21%
Silvia Huerlimann 9/10 6371 days 20%
Kim 8/10 6375 days 20%
PaulC 10/10 6377 days 21%
Thomas1646 9/10 6378 days 20%
HenizV 9/10 6380 days 20%
EstherW 9/10 6380 days 20%
Marc 7/10 6380 days 19%
LosItaly 10/10 6383 days 21%
Rissmann 9/10 6387 days 20%
Mick 10/10 6387 days 21%
Mayer 9/10 6387 days 20%
BernardK 9/10 6388 days 20%
Vivien Williams 10/10 6389 days 21%
Barry Smith 10/10 6391 days 21%
Siemens 8/10 6391 days 20%
Suzie Lechner 10/10 6391 days 21%
Danlin Yang 8/10 6394 days 20%
A 8/10 6395 days 20%
Dalibor 8/10 6405 days 20%
LindaV 8/10 6405 days 20%
RodW 10/10 6405 days 21%
CarstenU 10/10 6405 days 21%
CarolB 10/10 6405 days 21%
Elrik frau 9/10 6405 days 20%
MargaretH 10/10 6406 days 21%
Manfred 8/10 6407 days 20%
Kay 8/10 6414 days 20%
Visken 8/10 6414 days 20%
Pascal 6/10 6422 days 17%
Nienhaus 7/10 6438 days 19%
Anna 5/10 6438 days 15%
Liane 10/10 6439 days 21%
Hove 8/10 6443 days 20%
Roger 10/10 6443 days 21%
Bennie 9/10 6443 days 20%
Ellis 9/10 6443 days 20%
Rob 9/10 6443 days 20%
johanna 9/10 6444 days 20%
Kathrin 9/10 6444 days 20%
tommfuller 10/10 6455 days 21%
philipaindow 9/10 6473 days 20%
Grace 8/10 6476 days 20%
Ellen 9/10 6484 days 20%
Getkate 9/10 6492 days 20%
Sid 10/10 6512 days 21%
Paul 7/10 6548 days 19%
Andrew 10/10 6554 days 21%
Terry 9/10 6561 days 20%
Christine 8/10 6623 days 20%
angela 9/10 6754 days 20%
Hoetnagels 7/10 6754 days 19%
Wolfgang 10/10 6758 days 21%
Ria 9/10 6758 days 20%
Annette Hurst 7/10 6761 days 19%
Klaus 10/10 6762 days 21%
Raymond 9/10 6764 days 20%
Richard Steward 7/10 6768 days 19%
Christine McKenna 9/10 6769 days 20%
Kathy Hawey 9/10 6770 days 20%
Jurg Meister 10/10 6771 days 21%
Jurgen Westphal 7/10 6771 days 19%
Sally and David Wallis 9/10 6771 days 20%
Jackie Horwell 10/10 6772 days 21%
Paula Curtis 10/10 6775 days 21%
Claas 9/10 6784 days 20%
Travis 9/10 6807 days 20%
Maria 9/10 6814 days 20%
Jane Holm 8/10 6819 days 20%
Hans 10/10 6842 days 21%
Chris Gedda 8/10 6845 days 20%
Gabriela Herger 7/10 6853 days 19%
Jane Cameron 10/10 6855 days 21%
Jane Coleman 10/10 6856 days 21%
Lyn Saxon 10/10 6856 days 21%
Samuel Brejeon 8/10 6856 days 20%
Manuel 7/10 6860 days 19%
Ole Weber 9/10 6860 days 20%
Ed van Dael 7/10 6863 days 19%
Rene Schotvanger 9/10 6973 days 20%
Jo 10/10 6973 days 21%
Hans Knappmann 10/10 6973 days 21%
Martjn 8/10 7099 days 20%
Sandra 10/10 7108 days 21%
Ruefli 10/10 7108 days 21%
TeamFlorida 10/10 7108 days 21%
Deloraine 10/10 7108 days 21%
Petra 8/10 7108 days 20%
Anita 8/10 7108 days 20%
Oliver 10/10 7108 days 21%
Petra 10/10 7111 days 21%
Hannah 9/10 7111 days 20%
Michael 9/10 7113 days 20%
M Bekker 8/10 7113 days 20%
sebastian 9/10 7122 days 20%
John Beirne 10/10 7125 days 21%
Angela 9/10 7125 days 20%
Frederik 10/10 7125 days 21%
Pam 10/10 7127 days 21%
Kate 5/10 7129 days 15%
Danyel 9/10 7131 days 20%
Arjan 8/10 7132 days 20%
Manfred 9/10 7134 days 20%
Tom 9/10 7136 days 20%
Stefan 10/10 7141 days 21%
Pini 9/10 7147 days 20%
Gordon 8/10 7148 days 20%
Gillian 9/10 7148 days 20%
frank 8/10 7148 days 20%
Harrison 8/10 7149 days 20%
Hennielene 8/10 7149 days 20%
Beate 9/10 7149 days 20%
Leah 9/10 7149 days 20%
Liz 9/10 7149 days 20%

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

-2.81% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 84 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 -2.76%
198 -2.78%
199 -2.79%
200 -2.81%
201 -2.82%
202 -2.83%
203 -2.85%
… …

Balancing Adjustment

1.79% 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.