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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

87.97%

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 1809 days 100%
S Weslake 10/10 2846 days 59%
Wendy 8/10 3244 days 42%
David 9/10 3244 days 43%
DEBBIE LAMBERT 10/10 3255 days 43%
Charlie Friesen 10/10 3300 days 41%
Guenter 10/10 3330 days 40%
Niels 9/10 3339 days 39%
Tom Brien 8/10 3576 days 30%
Carl 9/10 3603 days 29%
Ferry and Carlyn 9/10 3621 days 28%
Virgil Spruit 9/10 3661 days 26%
GONZALEZ ROBERTO 10/10 3727 days 24%
Megan 10/10 3935 days 16%
Felix Holm 7/10 4013 days 12%
Marion and Ralf 9/10 4032 days 12%
Astrid Egesten 4/10 4039 days 7%
Anna Grafenstein 8/10 4272 days 2%
Alisa 10/10 4275 days 2%
Laura 10/10 4275 days 2%
Jan Legein 10/10 4284 days 2%
Veeh Barrington 7/10 4308 days 1%
Rita Hochstiasser 8/10 4332 days 0%
Sue L 10/10 4335 days 0%
Brian 8/10 4427 days 18%
Christin Woelk 9/10 4636 days 18%
Rouquette 7/10 4682 days 17%
Bucher 10/10 4747 days 19%
Tony Hines 9/10 4748 days 18%
Al Stuart 6/10 4749 days 16%
Moorman 7/10 4753 days 17%
Urs Kloter 8/10 4753 days 18%
Brian Howe 10/10 4755 days 19%
Peter 10/10 4755 days 19%
Reinhard Stahl 9/10 4767 days 18%
Reinhard Stahl 9/10 4767 days 18%
Urs Zuercher 10/10 4767 days 19%
Peter Harden 10/10 4767 days 19%
Reijans 9/10 4768 days 18%
Judy 10/10 4771 days 19%
Henzen 8/10 4771 days 18%
Eric and Jen Popma 10/10 4772 days 19%
Stevie 9/10 4774 days 18%
Christian 10/10 4774 days 19%
Frederick Neilsen 6/10 4774 days 16%
John Freeman 10/10 4778 days 19%
Verest 9/10 4778 days 18%
Kali Lohman 7/10 4778 days 17%
Ton Franke 9/10 4778 days 18%
Stefan Roth 9/10 4778 days 18%
Marjo Cousijn 9/10 4779 days 18%
Megan Child 7/10 4779 days 17%
Roshnie 6/10 4792 days 16%
Adrian Weidell 8/10 4967 days 18%
Dovis Heinemann 10/10 5021 days 19%
Mark Westebring 8/10 5024 days 18%
Sally Gordie 8/10 5024 days 18%
Oliver Hardt 8/10 5026 days 18%
Petr Stepanek 10/10 5029 days 19%
Clausen 9/10 5030 days 18%
Val Phillips 9/10 5030 days 18%
Sabrina Germany 6/10 5032 days 16%
Armin Boehmer 8/10 5032 days 18%
Frank Claassen 7/10 5033 days 17%
tmdilly 7/10 5037 days 17%
Wright 8/10 5041 days 18%
B Sluis 8/10 5046 days 18%
Mark Bogton 9/10 5046 days 18%
Karl Brachtl 10/10 5046 days 19%
Michael Stoll 7/10 5047 days 17%
Martin & Dee Bellarby 10/10 5047 days 19%
Patrick Grant 9/10 5047 days 18%
Miina Hyuonen 8/10 5048 days 18%
Peter & Kate Carmichael 8/10 5048 days 18%
Chris 8/10 5048 days 18%
Stam 8/10 5048 days 18%
Nico Schoots 7/10 5048 days 17%
Russell Eames 8/10 5049 days 18%
Annie 8/10 5049 days 18%
R E Webb 8/10 5049 days 18%
Mickey 7/10 5049 days 17%
Cynthia 10/10 5049 days 19%
Rene 10/10 5049 days 19%
Patricia Fearon 8/10 5049 days 18%
Jacques Duyvestijn 8/10 5050 days 18%
Dominique 9/10 5050 days 18%
Russell 9/10 5051 days 18%
M Abbott 9/10 5051 days 18%
Walter & Heidi Baumann 10/10 5051 days 19%
Houter 8/10 5051 days 18%
Diane Moss 8/10 5051 days 18%
Robert McIlraith 10/10 5052 days 19%
Susie Christensen 8/10 5052 days 18%
Nic Roggeman 9/10 5053 days 18%
Thomas & Ruth Hardmeier 10/10 5054 days 19%
de Weijer 8/10 5054 days 18%
Beyeler 10/10 5054 days 19%
Aled 8/10 5055 days 18%
Lynn Robinson 9/10 5058 days 18%
Suzanne van Kol 9/10 5059 days 18%
Schweiger 10/10 5061 days 19%
Rowena and Ian Lanyon 9/10 5061 days 18%
Robert MacLeod-Smith 8/10 5062 days 18%
Soren Storeboerg 8/10 5063 days 18%
Steve Collier 9/10 5065 days 18%
Dick van Doorn 8/10 5065 days 18%
Heini 8/10 5065 days 18%
Barrie Corless 9/10 5065 days 18%
Stig Domander 9/10 5079 days 18%
Rhi 10/10 5097 days 19%
Tobias Forst 8/10 5129 days 18%
Arnoldus Bergmans 9/10 5132 days 18%
Dirk Faupel 9/10 5132 days 18%
Dirk Faupel 9/10 5132 days 18%
Chris Muller 8/10 5132 days 18%
Jo Delbrugge 9/10 5132 days 18%
Sarah and Soren 9/10 5134 days 18%
van Rees 9/10 5137 days 18%
Robin & Sandra Dijke 8/10 5137 days 18%
Jan & Marian 9/10 5140 days 18%
David & Mary-Jane Ryder 10/10 5140 days 19%
Caroline 9/10 5142 days 18%
Leif Sorensen 10/10 5142 days 19%
Andy Lever 5/10 5143 days 14%
Johanna Maria Brigitta 8/10 5143 days 18%
Konny 10/10 5144 days 19%
Theresa 9/10 5144 days 18%
Rudy Witt 9/10 5144 days 18%
Peter Spooner 10/10 5145 days 19%
Gary A 9/10 5158 days 18%
damaca 10/10 5219 days 19%
Janet Arber 9/10 5353 days 18%
Ralph & Marloes Meyers 7/10 5371 days 17%
Derek 10/10 5383 days 19%
Brian & Di 9/10 5385 days 18%
Eric & Liz McKean 10/10 5385 days 19%
Leon van Hengel 8/10 5386 days 18%
Barbara Probert 9/10 5387 days 18%
Kuhu 9/10 5387 days 18%
Richard Dudfield 8/10 5389 days 18%
Robin Adair 10/10 5390 days 19%
Graham Mason 10/10 5390 days 19%
Oppenoorth 9/10 5391 days 18%
Shane Curline 8/10 5393 days 18%
Michael Orme 9/10 5393 days 18%
Peter & Angela Brown 9/10 5393 days 18%
Janey Chamberlain 8/10 5394 days 18%
Joop Ezendam 8/10 5395 days 18%
J Palmer 7/10 5395 days 17%
David Mellard 10/10 5395 days 19%
Nicola Shaw 10/10 5396 days 19%
Diane Johnston 9/10 5396 days 18%
Richard Broughton 9/10 5397 days 18%
Chris & Anne Pearson 6/10 5397 days 16%
Patrick Schaad 9/10 5397 days 18%
Gerstmann 9/10 5397 days 18%
Aln 8/10 5397 days 18%
Fam de Kruyf 8/10 5400 days 18%
Martin 9/10 5401 days 18%
Jack Vermeidem 8/10 5401 days 18%
Jan Visser 8/10 5403 days 18%
Marjan Van Den Braak 7/10 5404 days 17%
Tyson Burnett 8/10 5404 days 18%
John Gray 8/10 5404 days 18%
Colin Lockwood 8/10 5406 days 18%
David Emerick 10/10 5406 days 19%
Hadleigh 9/10 5408 days 18%
Marcus 9/10 5408 days 18%
Manu & Gabi 10/10 5408 days 19%
Peter 8/10 5408 days 18%
Bert Opdam 8/10 5413 days 18%
Anita Aleva 8/10 5415 days 18%
Leslie 9/10 5415 days 18%
Pat MacDonald 9/10 5418 days 18%
Jill Dean 9/10 5418 days 18%
Martin Current 8/10 5418 days 18%
Jane & Regis 9/10 5419 days 18%
Teum and Orselien 6/10 5419 days 16%
Graham 9/10 5419 days 18%
Ross Hughes 8/10 5422 days 18%
Sarraute 9/10 5423 days 18%
Webster 10/10 5424 days 19%
Jarob Brezigar 9/10 5424 days 18%
Lynn Leitch 10/10 5424 days 19%
Lili 6/10 5424 days 16%
Michael Duckert 9/10 5425 days 18%
Loren van Oordt 10/10 5426 days 19%
Tom Hill 10/10 5426 days 19%
D Oostrum 8/10 5426 days 18%
Elinor Bell 9/10 5426 days 18%
Tanner 10/10 5426 days 19%
John Fry 8/10 5426 days 18%
T Chapman 8/10 5426 days 18%
Ewald Waldner 9/10 5427 days 18%
Chris Chasemore 9/10 5427 days 18%
H Schepers 8/10 5427 days 18%
Steve & Susan Allan 9/10 5428 days 18%
Barbara Koegel 8/10 5428 days 18%
Andreas Neo 5/10 5428 days 14%
Grada Anderson 10/10 5431 days 19%
Chamton 8/10 5431 days 18%
Richardr1 10/10 5686 days 19%
Versteeg 8/10 5689 days 18%
Jon van Hanten 8/10 5693 days 18%
Charli Skinner 9/10 5698 days 18%
Kurt 9/10 5701 days 18%
Sophie & Joffrey 7/10 5702 days 17%
Jane and Dave 10/10 5704 days 19%
Peter Aerborg 9/10 5704 days 18%
krisevelyn 8/10 5707 days 18%
steveE 9/10 5707 days 18%
Maria 8/10 5737 days 18%
maggie Webster 7/10 5754 days 17%
katrina Marshall 10/10 5754 days 19%
Bergemann 10/10 5754 days 19%
Don Keith 6/10 5755 days 16%
OMPA 10/10 5756 days 19%
Theresa 10/10 5756 days 19%
George Lepple 10/10 5761 days 19%
Sue S 10/10 5763 days 19%
Ralph 4/10 5765 days 11%
Gerdes 9/10 5765 days 18%
Main 10/10 5769 days 19%
Stanna 9/10 5769 days 18%
Susan & Richard 10/10 5771 days 19%
Zareua Boree 9/10 5771 days 18%
S Millet 9/10 5774 days 18%
Muller Weissert 10/10 5775 days 19%
Frans N 10/10 5776 days 19%
Sue Bennett 8/10 5778 days 18%
Hans de Rijk 7/10 5778 days 17%
David Rich 9/10 5781 days 18%
Walter 8/10 5782 days 18%
Ferth 9/10 5782 days 18%
J Kempeneers 7/10 5782 days 17%
Vandeput 9/10 5782 days 18%
Marco 8/10 5784 days 18%
John Winter 8/10 5793 days 18%
Sinjc Grude 8/10 5793 days 18%
Hoogh 8/10 5793 days 18%
Keith Maplestone 8/10 5795 days 18%
John Rylance 10/10 5795 days 19%
Anne Fri 8/10 5795 days 18%
uleugel 9/10 5805 days 18%
Sabine Locker 8/10 5812 days 18%
Family van Hessem 7/10 5816 days 17%
Alibeare 10/10 5827 days 19%
graemeh1 9/10 5842 days 18%
klinger 10/10 5842 days 19%
wenerz 8/10 5843 days 18%
ilkal 9/10 5844 days 18%
susanl 10/10 5849 days 19%
Robbertsen 6/10 5850 days 16%
pimn 9/10 5852 days 18%
thomash 10/10 5852 days 19%
jamesg 9/10 5856 days 18%
pthreadgood 9/10 5856 days 18%
Gary Brown 10/10 5860 days 19%
Sandra M 8/10 5860 days 18%
dirkdev 9/10 5862 days 18%
Bill Nash 10/10 5862 days 19%
H Simpson 10/10 5862 days 19%
Wolfgang Mages 10/10 5862 days 19%
Colin S 9/10 5866 days 18%
Jenny Davies 8/10 5868 days 18%
Alan Riley 9/10 5870 days 18%
Ann Riley 9/10 5870 days 18%
Hennie Neeleman 9/10 5870 days 18%
Pieter Neeleman 8/10 5870 days 18%
Daniel Alonso 9/10 5870 days 18%
Hans Barth 8/10 5878 days 18%
Jenny and Dave Close 9/10 5881 days 18%
Graham Butt 8/10 5881 days 18%
Claudia 10/10 5881 days 19%
Evan 9/10 5919 days 18%
marleen451 9/10 5919 days 18%
johanw 9/10 5974 days 18%
ulrichk 10/10 5975 days 19%
lee 10/10 6072 days 19%
EvertG 8/10 6083 days 18%
CarolN 8/10 6086 days 18%
Andrew Lonsdale 8/10 6090 days 18%
RosemaryC 7/10 6099 days 17%
Christian Kamm 10/10 6099 days 19%
caroldarren 9/10 6102 days 18%
monikav 10/10 6102 days 19%
Silvia Huerlimann 9/10 6102 days 18%
Kim 8/10 6106 days 18%
PaulC 10/10 6108 days 19%
Thomas1646 9/10 6109 days 18%
HenizV 9/10 6111 days 18%
EstherW 9/10 6111 days 18%
Marc 7/10 6111 days 17%
LosItaly 10/10 6114 days 19%
Rissmann 9/10 6118 days 18%
Mick 10/10 6118 days 19%
Mayer 9/10 6118 days 18%
BernardK 9/10 6119 days 18%
Vivien Williams 10/10 6120 days 19%
Barry Smith 10/10 6122 days 19%
Siemens 8/10 6122 days 18%
Suzie Lechner 10/10 6122 days 19%
Danlin Yang 8/10 6125 days 18%
A 8/10 6126 days 18%
Dalibor 8/10 6136 days 18%
LindaV 8/10 6136 days 18%
RodW 10/10 6136 days 19%
CarstenU 10/10 6136 days 19%
CarolB 10/10 6136 days 19%
Elrik frau 9/10 6136 days 18%
MargaretH 10/10 6137 days 19%
Manfred 8/10 6138 days 18%
Kay 8/10 6145 days 18%
Visken 8/10 6145 days 18%
Pascal 6/10 6153 days 16%
Nienhaus 7/10 6169 days 17%
Anna 5/10 6169 days 14%
Liane 10/10 6170 days 19%
Hove 8/10 6174 days 18%
Roger 10/10 6174 days 19%
Bennie 9/10 6174 days 18%
Ellis 9/10 6174 days 18%
Rob 9/10 6174 days 18%
johanna 9/10 6175 days 18%
Kathrin 9/10 6175 days 18%
tommfuller 10/10 6186 days 19%
philipaindow 9/10 6204 days 18%
Grace 8/10 6207 days 18%
Ellen 9/10 6215 days 18%
Getkate 9/10 6223 days 18%
Sid 10/10 6243 days 19%
Paul 7/10 6279 days 17%
Andrew 10/10 6285 days 19%
Terry 9/10 6292 days 18%
Christine 8/10 6354 days 18%
angela 9/10 6485 days 18%
Hoetnagels 7/10 6485 days 17%
Wolfgang 10/10 6489 days 19%
Ria 9/10 6489 days 18%
Annette Hurst 7/10 6492 days 17%
Klaus 10/10 6493 days 19%
Raymond 9/10 6495 days 18%
Richard Steward 7/10 6499 days 17%
Christine McKenna 9/10 6500 days 18%
Kathy Hawey 9/10 6501 days 18%
Jurg Meister 10/10 6502 days 19%
Jurgen Westphal 7/10 6502 days 17%
Sally and David Wallis 9/10 6502 days 18%
Jackie Horwell 10/10 6503 days 19%
Paula Curtis 10/10 6506 days 19%
Claas 9/10 6515 days 18%
Travis 9/10 6538 days 18%
Maria 9/10 6545 days 18%
Jane Holm 8/10 6550 days 18%
Hans 10/10 6573 days 19%
Chris Gedda 8/10 6576 days 18%
Gabriela Herger 7/10 6584 days 17%
Jane Cameron 10/10 6586 days 19%
Jane Coleman 10/10 6587 days 19%
Lyn Saxon 10/10 6587 days 19%
Samuel Brejeon 8/10 6587 days 18%
Manuel 7/10 6591 days 17%
Ole Weber 9/10 6591 days 18%
Ed van Dael 7/10 6594 days 17%
Rene Schotvanger 9/10 6704 days 18%
Jo 10/10 6704 days 19%
Hans Knappmann 10/10 6704 days 19%
Martjn 8/10 6830 days 18%
Sandra 10/10 6839 days 19%
Ruefli 10/10 6839 days 19%
TeamFlorida 10/10 6839 days 19%
Deloraine 10/10 6839 days 19%
Petra 8/10 6839 days 18%
Anita 8/10 6839 days 18%
Oliver 10/10 6839 days 19%
Petra 10/10 6842 days 19%
Hannah 9/10 6842 days 18%
Michael 9/10 6844 days 18%
M Bekker 8/10 6844 days 18%
sebastian 9/10 6853 days 18%
John Beirne 10/10 6856 days 19%
Angela 9/10 6856 days 18%
Frederik 10/10 6856 days 19%
Pam 10/10 6858 days 19%
Kate 5/10 6860 days 14%
Danyel 9/10 6862 days 18%
Arjan 8/10 6863 days 18%
Manfred 9/10 6865 days 18%
Tom 9/10 6867 days 18%
Stefan 10/10 6872 days 19%
Pini 9/10 6878 days 18%
Gordon 8/10 6879 days 18%
Gillian 9/10 6879 days 18%
frank 8/10 6879 days 18%
Harrison 8/10 6880 days 18%
Hennielene 8/10 6880 days 18%
Beate 9/10 6880 days 18%
Leah 9/10 6880 days 18%
Liz 9/10 6880 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

-4.06% 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 -4.00%
198 -4.02%
199 -4.04%
200 -4.06%
201 -4.08%
202 -4.10%
203 -4.12%
… …

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.