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Ranking Score Explained

Kia ora, 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 1810 days 100%
S Weslake 10/10 2847 days 59%
Wendy 8/10 3245 days 42%
David 9/10 3245 days 43%
DEBBIE LAMBERT 10/10 3256 days 43%
Charlie Friesen 10/10 3301 days 41%
Guenter 10/10 3331 days 40%
Niels 9/10 3340 days 39%
Tom Brien 8/10 3577 days 30%
Carl 9/10 3604 days 29%
Ferry and Carlyn 9/10 3622 days 28%
Virgil Spruit 9/10 3662 days 26%
GONZALEZ ROBERTO 10/10 3728 days 24%
Megan 10/10 3936 days 16%
Felix Holm 7/10 4014 days 12%
Marion and Ralf 9/10 4033 days 12%
Astrid Egesten 4/10 4040 days 7%
Anna Grafenstein 8/10 4273 days 2%
Alisa 10/10 4276 days 2%
Laura 10/10 4276 days 2%
Jan Legein 10/10 4285 days 2%
Veeh Barrington 7/10 4309 days 1%
Rita Hochstiasser 8/10 4333 days 0%
Sue L 10/10 4336 days 0%
Brian 8/10 4428 days 18%
Christin Woelk 9/10 4637 days 18%
Rouquette 7/10 4683 days 17%
Bucher 10/10 4748 days 19%
Tony Hines 9/10 4749 days 18%
Al Stuart 6/10 4750 days 16%
Moorman 7/10 4754 days 17%
Urs Kloter 8/10 4754 days 18%
Brian Howe 10/10 4756 days 19%
Peter 10/10 4756 days 19%
Reinhard Stahl 9/10 4768 days 18%
Reinhard Stahl 9/10 4768 days 18%
Urs Zuercher 10/10 4768 days 19%
Peter Harden 10/10 4768 days 19%
Reijans 9/10 4769 days 18%
Judy 10/10 4772 days 19%
Henzen 8/10 4772 days 18%
Eric and Jen Popma 10/10 4773 days 19%
Stevie 9/10 4775 days 18%
Christian 10/10 4775 days 19%
Frederick Neilsen 6/10 4775 days 16%
John Freeman 10/10 4779 days 19%
Verest 9/10 4779 days 18%
Kali Lohman 7/10 4779 days 17%
Ton Franke 9/10 4779 days 18%
Stefan Roth 9/10 4779 days 18%
Marjo Cousijn 9/10 4780 days 18%
Megan Child 7/10 4780 days 17%
Roshnie 6/10 4793 days 16%
Adrian Weidell 8/10 4968 days 18%
Dovis Heinemann 10/10 5022 days 19%
Mark Westebring 8/10 5025 days 18%
Sally Gordie 8/10 5025 days 18%
Oliver Hardt 8/10 5027 days 18%
Petr Stepanek 10/10 5030 days 19%
Clausen 9/10 5031 days 18%
Val Phillips 9/10 5031 days 18%
Sabrina Germany 6/10 5033 days 16%
Armin Boehmer 8/10 5033 days 18%
Frank Claassen 7/10 5034 days 17%
tmdilly 7/10 5038 days 17%
Wright 8/10 5042 days 18%
B Sluis 8/10 5047 days 18%
Mark Bogton 9/10 5047 days 18%
Karl Brachtl 10/10 5047 days 19%
Michael Stoll 7/10 5048 days 17%
Martin & Dee Bellarby 10/10 5048 days 19%
Patrick Grant 9/10 5048 days 18%
Miina Hyuonen 8/10 5049 days 18%
Peter & Kate Carmichael 8/10 5049 days 18%
Chris 8/10 5049 days 18%
Stam 8/10 5049 days 18%
Nico Schoots 7/10 5049 days 17%
Russell Eames 8/10 5050 days 18%
Annie 8/10 5050 days 18%
R E Webb 8/10 5050 days 18%
Mickey 7/10 5050 days 17%
Cynthia 10/10 5050 days 19%
Rene 10/10 5050 days 19%
Patricia Fearon 8/10 5050 days 18%
Jacques Duyvestijn 8/10 5051 days 18%
Dominique 9/10 5051 days 18%
Russell 9/10 5052 days 18%
M Abbott 9/10 5052 days 18%
Walter & Heidi Baumann 10/10 5052 days 19%
Houter 8/10 5052 days 18%
Diane Moss 8/10 5052 days 18%
Robert McIlraith 10/10 5053 days 19%
Susie Christensen 8/10 5053 days 18%
Nic Roggeman 9/10 5054 days 18%
Thomas & Ruth Hardmeier 10/10 5055 days 19%
de Weijer 8/10 5055 days 18%
Beyeler 10/10 5055 days 19%
Aled 8/10 5056 days 18%
Lynn Robinson 9/10 5059 days 18%
Suzanne van Kol 9/10 5060 days 18%
Schweiger 10/10 5062 days 19%
Rowena and Ian Lanyon 9/10 5062 days 18%
Robert MacLeod-Smith 8/10 5063 days 18%
Soren Storeboerg 8/10 5064 days 18%
Steve Collier 9/10 5066 days 18%
Dick van Doorn 8/10 5066 days 18%
Heini 8/10 5066 days 18%
Barrie Corless 9/10 5066 days 18%
Stig Domander 9/10 5080 days 18%
Rhi 10/10 5098 days 19%
Tobias Forst 8/10 5130 days 18%
Arnoldus Bergmans 9/10 5133 days 18%
Dirk Faupel 9/10 5133 days 18%
Dirk Faupel 9/10 5133 days 18%
Chris Muller 8/10 5133 days 18%
Jo Delbrugge 9/10 5133 days 18%
Sarah and Soren 9/10 5135 days 18%
van Rees 9/10 5138 days 18%
Robin & Sandra Dijke 8/10 5138 days 18%
Jan & Marian 9/10 5141 days 18%
David & Mary-Jane Ryder 10/10 5141 days 19%
Caroline 9/10 5143 days 18%
Leif Sorensen 10/10 5143 days 19%
Andy Lever 5/10 5144 days 14%
Johanna Maria Brigitta 8/10 5144 days 18%
Konny 10/10 5145 days 19%
Theresa 9/10 5145 days 18%
Rudy Witt 9/10 5145 days 18%
Peter Spooner 10/10 5146 days 19%
Gary A 9/10 5159 days 18%
damaca 10/10 5220 days 19%
Janet Arber 9/10 5354 days 18%
Ralph & Marloes Meyers 7/10 5372 days 17%
Derek 10/10 5384 days 19%
Brian & Di 9/10 5386 days 18%
Eric & Liz McKean 10/10 5386 days 19%
Leon van Hengel 8/10 5387 days 18%
Barbara Probert 9/10 5388 days 18%
Kuhu 9/10 5388 days 18%
Richard Dudfield 8/10 5390 days 18%
Robin Adair 10/10 5391 days 19%
Graham Mason 10/10 5391 days 19%
Oppenoorth 9/10 5392 days 18%
Shane Curline 8/10 5394 days 18%
Michael Orme 9/10 5394 days 18%
Peter & Angela Brown 9/10 5394 days 18%
Janey Chamberlain 8/10 5395 days 18%
Joop Ezendam 8/10 5396 days 18%
J Palmer 7/10 5396 days 17%
David Mellard 10/10 5396 days 19%
Nicola Shaw 10/10 5397 days 19%
Diane Johnston 9/10 5397 days 18%
Richard Broughton 9/10 5398 days 18%
Chris & Anne Pearson 6/10 5398 days 16%
Patrick Schaad 9/10 5398 days 18%
Gerstmann 9/10 5398 days 18%
Aln 8/10 5398 days 18%
Fam de Kruyf 8/10 5401 days 18%
Martin 9/10 5402 days 18%
Jack Vermeidem 8/10 5402 days 18%
Jan Visser 8/10 5404 days 18%
Marjan Van Den Braak 7/10 5405 days 17%
Tyson Burnett 8/10 5405 days 18%
John Gray 8/10 5405 days 18%
Colin Lockwood 8/10 5407 days 18%
David Emerick 10/10 5407 days 19%
Hadleigh 9/10 5409 days 18%
Marcus 9/10 5409 days 18%
Manu & Gabi 10/10 5409 days 19%
Peter 8/10 5409 days 18%
Bert Opdam 8/10 5414 days 18%
Anita Aleva 8/10 5416 days 18%
Leslie 9/10 5416 days 18%
Pat MacDonald 9/10 5419 days 18%
Jill Dean 9/10 5419 days 18%
Martin Current 8/10 5419 days 18%
Jane & Regis 9/10 5420 days 18%
Teum and Orselien 6/10 5420 days 16%
Graham 9/10 5420 days 18%
Ross Hughes 8/10 5423 days 18%
Sarraute 9/10 5424 days 18%
Webster 10/10 5425 days 19%
Jarob Brezigar 9/10 5425 days 18%
Lynn Leitch 10/10 5425 days 19%
Lili 6/10 5425 days 16%
Michael Duckert 9/10 5426 days 18%
Loren van Oordt 10/10 5427 days 19%
Tom Hill 10/10 5427 days 19%
D Oostrum 8/10 5427 days 18%
Elinor Bell 9/10 5427 days 18%
Tanner 10/10 5427 days 19%
John Fry 8/10 5427 days 18%
T Chapman 8/10 5427 days 18%
Ewald Waldner 9/10 5428 days 18%
Chris Chasemore 9/10 5428 days 18%
H Schepers 8/10 5428 days 18%
Steve & Susan Allan 9/10 5429 days 18%
Barbara Koegel 8/10 5429 days 18%
Andreas Neo 5/10 5429 days 14%
Grada Anderson 10/10 5432 days 19%
Chamton 8/10 5432 days 18%
Richardr1 10/10 5687 days 19%
Versteeg 8/10 5690 days 18%
Jon van Hanten 8/10 5694 days 18%
Charli Skinner 9/10 5699 days 18%
Kurt 9/10 5702 days 18%
Sophie & Joffrey 7/10 5703 days 17%
Jane and Dave 10/10 5705 days 19%
Peter Aerborg 9/10 5705 days 18%
krisevelyn 8/10 5708 days 18%
steveE 9/10 5708 days 18%
Maria 8/10 5738 days 18%
maggie Webster 7/10 5755 days 17%
katrina Marshall 10/10 5755 days 19%
Bergemann 10/10 5755 days 19%
Don Keith 6/10 5756 days 16%
OMPA 10/10 5757 days 19%
Theresa 10/10 5757 days 19%
George Lepple 10/10 5762 days 19%
Sue S 10/10 5764 days 19%
Ralph 4/10 5766 days 12%
Gerdes 9/10 5766 days 18%
Main 10/10 5770 days 19%
Stanna 9/10 5770 days 18%
Susan & Richard 10/10 5772 days 19%
Zareua Boree 9/10 5772 days 18%
S Millet 9/10 5775 days 18%
Muller Weissert 10/10 5776 days 19%
Frans N 10/10 5777 days 19%
Sue Bennett 8/10 5779 days 18%
Hans de Rijk 7/10 5779 days 17%
David Rich 9/10 5782 days 18%
Walter 8/10 5783 days 18%
Ferth 9/10 5783 days 18%
J Kempeneers 7/10 5783 days 17%
Vandeput 9/10 5783 days 18%
Marco 8/10 5785 days 18%
John Winter 8/10 5794 days 18%
Sinjc Grude 8/10 5794 days 18%
Hoogh 8/10 5794 days 18%
Keith Maplestone 8/10 5796 days 18%
John Rylance 10/10 5796 days 19%
Anne Fri 8/10 5796 days 18%
uleugel 9/10 5806 days 18%
Sabine Locker 8/10 5813 days 18%
Family van Hessem 7/10 5817 days 17%
Alibeare 10/10 5828 days 19%
graemeh1 9/10 5843 days 18%
klinger 10/10 5843 days 19%
wenerz 8/10 5844 days 18%
ilkal 9/10 5845 days 18%
susanl 10/10 5850 days 19%
Robbertsen 6/10 5851 days 16%
pimn 9/10 5853 days 18%
thomash 10/10 5853 days 19%
jamesg 9/10 5857 days 18%
pthreadgood 9/10 5857 days 18%
Gary Brown 10/10 5861 days 19%
Sandra M 8/10 5861 days 18%
dirkdev 9/10 5863 days 18%
Bill Nash 10/10 5863 days 19%
H Simpson 10/10 5863 days 19%
Wolfgang Mages 10/10 5863 days 19%
Colin S 9/10 5867 days 18%
Jenny Davies 8/10 5869 days 18%
Alan Riley 9/10 5871 days 18%
Ann Riley 9/10 5871 days 18%
Hennie Neeleman 9/10 5871 days 18%
Pieter Neeleman 8/10 5871 days 18%
Daniel Alonso 9/10 5871 days 18%
Hans Barth 8/10 5879 days 18%
Jenny and Dave Close 9/10 5882 days 18%
Graham Butt 8/10 5882 days 18%
Claudia 10/10 5882 days 19%
Evan 9/10 5920 days 18%
marleen451 9/10 5920 days 18%
johanw 9/10 5975 days 18%
ulrichk 10/10 5976 days 19%
lee 10/10 6073 days 19%
EvertG 8/10 6084 days 18%
CarolN 8/10 6087 days 18%
Andrew Lonsdale 8/10 6091 days 18%
RosemaryC 7/10 6100 days 17%
Christian Kamm 10/10 6100 days 19%
caroldarren 9/10 6103 days 18%
monikav 10/10 6103 days 19%
Silvia Huerlimann 9/10 6103 days 18%
Kim 8/10 6107 days 18%
PaulC 10/10 6109 days 19%
Thomas1646 9/10 6110 days 18%
HenizV 9/10 6112 days 18%
EstherW 9/10 6112 days 18%
Marc 7/10 6112 days 17%
LosItaly 10/10 6115 days 19%
Rissmann 9/10 6119 days 18%
Mick 10/10 6119 days 19%
Mayer 9/10 6119 days 18%
BernardK 9/10 6120 days 18%
Vivien Williams 10/10 6121 days 19%
Barry Smith 10/10 6123 days 19%
Siemens 8/10 6123 days 18%
Suzie Lechner 10/10 6123 days 19%
Danlin Yang 8/10 6126 days 18%
A 8/10 6127 days 18%
Dalibor 8/10 6137 days 18%
LindaV 8/10 6137 days 18%
RodW 10/10 6137 days 19%
CarstenU 10/10 6137 days 19%
CarolB 10/10 6137 days 19%
Elrik frau 9/10 6137 days 18%
MargaretH 10/10 6138 days 19%
Manfred 8/10 6139 days 18%
Kay 8/10 6146 days 18%
Visken 8/10 6146 days 18%
Pascal 6/10 6154 days 16%
Nienhaus 7/10 6170 days 17%
Anna 5/10 6170 days 14%
Liane 10/10 6171 days 19%
Hove 8/10 6175 days 18%
Roger 10/10 6175 days 19%
Bennie 9/10 6175 days 18%
Ellis 9/10 6175 days 18%
Rob 9/10 6175 days 18%
johanna 9/10 6176 days 18%
Kathrin 9/10 6176 days 18%
tommfuller 10/10 6187 days 19%
philipaindow 9/10 6205 days 18%
Grace 8/10 6207 days 18%
Ellen 9/10 6216 days 18%
Getkate 9/10 6224 days 18%
Sid 10/10 6243 days 19%
Paul 7/10 6280 days 17%
Andrew 10/10 6286 days 19%
Terry 9/10 6293 days 18%
Christine 8/10 6355 days 18%
angela 9/10 6486 days 18%
Hoetnagels 7/10 6486 days 17%
Wolfgang 10/10 6490 days 19%
Ria 9/10 6490 days 18%
Annette Hurst 7/10 6493 days 17%
Klaus 10/10 6494 days 19%
Raymond 9/10 6496 days 18%
Richard Steward 7/10 6500 days 17%
Christine McKenna 9/10 6501 days 18%
Kathy Hawey 9/10 6502 days 18%
Jurg Meister 10/10 6503 days 19%
Jurgen Westphal 7/10 6503 days 17%
Sally and David Wallis 9/10 6503 days 18%
Jackie Horwell 10/10 6504 days 19%
Paula Curtis 10/10 6507 days 19%
Claas 9/10 6516 days 18%
Travis 9/10 6539 days 18%
Maria 9/10 6546 days 18%
Jane Holm 8/10 6551 days 18%
Hans 10/10 6574 days 19%
Chris Gedda 8/10 6577 days 18%
Gabriela Herger 7/10 6585 days 17%
Jane Cameron 10/10 6587 days 19%
Jane Coleman 10/10 6588 days 19%
Lyn Saxon 10/10 6588 days 19%
Samuel Brejeon 8/10 6588 days 18%
Manuel 7/10 6592 days 17%
Ole Weber 9/10 6592 days 18%
Ed van Dael 7/10 6595 days 17%
Rene Schotvanger 9/10 6705 days 18%
Jo 10/10 6705 days 19%
Hans Knappmann 10/10 6705 days 19%
Martjn 8/10 6831 days 18%
Sandra 10/10 6840 days 19%
Ruefli 10/10 6840 days 19%
TeamFlorida 10/10 6840 days 19%
Deloraine 10/10 6840 days 19%
Petra 8/10 6840 days 18%
Anita 8/10 6840 days 18%
Oliver 10/10 6840 days 19%
Petra 10/10 6843 days 19%
Hannah 9/10 6843 days 18%
Michael 9/10 6845 days 18%
M Bekker 8/10 6845 days 18%
sebastian 9/10 6854 days 18%
John Beirne 10/10 6857 days 19%
Angela 9/10 6857 days 18%
Frederik 10/10 6857 days 19%
Pam 10/10 6859 days 19%
Kate 5/10 6861 days 14%
Danyel 9/10 6863 days 18%
Arjan 8/10 6864 days 18%
Manfred 9/10 6866 days 18%
Tom 9/10 6868 days 18%
Stefan 10/10 6873 days 19%
Pini 9/10 6879 days 18%
Gordon 8/10 6880 days 18%
Gillian 9/10 6880 days 18%
frank 8/10 6880 days 18%
Harrison 8/10 6881 days 18%
Hennielene 8/10 6881 days 18%
Beate 9/10 6881 days 18%
Leah 9/10 6881 days 18%
Liz 9/10 6881 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

-4.05% 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 -3.99%
198 -4.01%
199 -4.03%
200 -4.05%
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.