Back

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 1808 days 100%
S Weslake 10/10 2845 days 59%
Wendy 8/10 3243 days 42%
David 9/10 3243 days 43%
DEBBIE LAMBERT 10/10 3254 days 43%
Charlie Friesen 10/10 3299 days 41%
Guenter 10/10 3330 days 40%
Niels 9/10 3338 days 39%
Tom Brien 8/10 3575 days 30%
Carl 9/10 3602 days 29%
Ferry and Carlyn 9/10 3620 days 28%
Virgil Spruit 9/10 3660 days 26%
GONZALEZ ROBERTO 10/10 3727 days 24%
Megan 10/10 3934 days 16%
Felix Holm 7/10 4012 days 12%
Marion and Ralf 9/10 4031 days 12%
Astrid Egesten 4/10 4038 days 7%
Anna Grafenstein 8/10 4271 days 2%
Alisa 10/10 4274 days 2%
Laura 10/10 4274 days 2%
Jan Legein 10/10 4283 days 2%
Veeh Barrington 7/10 4307 days 1%
Rita Hochstiasser 8/10 4331 days 0%
Sue L 10/10 4334 days 0%
Brian 8/10 4426 days 18%
Christin Woelk 9/10 4635 days 18%
Rouquette 7/10 4681 days 17%
Bucher 10/10 4746 days 18%
Tony Hines 9/10 4747 days 18%
Al Stuart 6/10 4748 days 16%
Moorman 7/10 4752 days 17%
Urs Kloter 8/10 4752 days 18%
Brian Howe 10/10 4754 days 18%
Peter 10/10 4754 days 18%
Reinhard Stahl 9/10 4766 days 18%
Reinhard Stahl 9/10 4766 days 18%
Urs Zuercher 10/10 4766 days 18%
Peter Harden 10/10 4766 days 18%
Reijans 9/10 4767 days 18%
Judy 10/10 4770 days 18%
Henzen 8/10 4770 days 18%
Eric and Jen Popma 10/10 4771 days 18%
Stevie 9/10 4773 days 18%
Christian 10/10 4773 days 18%
Frederick Neilsen 6/10 4773 days 16%
John Freeman 10/10 4777 days 18%
Verest 9/10 4777 days 18%
Kali Lohman 7/10 4777 days 17%
Ton Franke 9/10 4777 days 18%
Stefan Roth 9/10 4777 days 18%
Marjo Cousijn 9/10 4778 days 18%
Megan Child 7/10 4778 days 17%
Roshnie 6/10 4791 days 16%
Adrian Weidell 8/10 4966 days 18%
Dovis Heinemann 10/10 5020 days 18%
Mark Westebring 8/10 5023 days 18%
Sally Gordie 8/10 5023 days 18%
Oliver Hardt 8/10 5025 days 18%
Petr Stepanek 10/10 5028 days 18%
Clausen 9/10 5029 days 18%
Val Phillips 9/10 5029 days 18%
Sabrina Germany 6/10 5031 days 16%
Armin Boehmer 8/10 5031 days 18%
Frank Claassen 7/10 5032 days 17%
tmdilly 7/10 5036 days 17%
Wright 8/10 5040 days 18%
B Sluis 8/10 5045 days 18%
Mark Bogton 9/10 5045 days 18%
Karl Brachtl 10/10 5045 days 18%
Michael Stoll 7/10 5046 days 17%
Martin & Dee Bellarby 10/10 5046 days 18%
Patrick Grant 9/10 5046 days 18%
Miina Hyuonen 8/10 5047 days 18%
Peter & Kate Carmichael 8/10 5047 days 18%
Chris 8/10 5047 days 18%
Stam 8/10 5047 days 18%
Nico Schoots 7/10 5047 days 17%
Russell Eames 8/10 5048 days 18%
Annie 8/10 5048 days 18%
R E Webb 8/10 5048 days 18%
Mickey 7/10 5048 days 17%
Cynthia 10/10 5048 days 18%
Rene 10/10 5048 days 18%
Patricia Fearon 8/10 5048 days 18%
Jacques Duyvestijn 8/10 5049 days 18%
Dominique 9/10 5049 days 18%
Russell 9/10 5050 days 18%
M Abbott 9/10 5050 days 18%
Walter & Heidi Baumann 10/10 5050 days 18%
Houter 8/10 5050 days 18%
Diane Moss 8/10 5050 days 18%
Robert McIlraith 10/10 5051 days 18%
Susie Christensen 8/10 5051 days 18%
Nic Roggeman 9/10 5052 days 18%
Thomas & Ruth Hardmeier 10/10 5053 days 18%
de Weijer 8/10 5053 days 18%
Beyeler 10/10 5053 days 18%
Aled 8/10 5054 days 18%
Lynn Robinson 9/10 5057 days 18%
Suzanne van Kol 9/10 5058 days 18%
Schweiger 10/10 5060 days 18%
Rowena and Ian Lanyon 9/10 5060 days 18%
Robert MacLeod-Smith 8/10 5061 days 18%
Soren Storeboerg 8/10 5062 days 18%
Steve Collier 9/10 5064 days 18%
Dick van Doorn 8/10 5064 days 18%
Heini 8/10 5064 days 18%
Barrie Corless 9/10 5064 days 18%
Stig Domander 9/10 5078 days 18%
Rhi 10/10 5096 days 18%
Tobias Forst 8/10 5128 days 18%
Arnoldus Bergmans 9/10 5131 days 18%
Dirk Faupel 9/10 5131 days 18%
Dirk Faupel 9/10 5131 days 18%
Chris Muller 8/10 5131 days 18%
Jo Delbrugge 9/10 5131 days 18%
Sarah and Soren 9/10 5133 days 18%
van Rees 9/10 5136 days 18%
Robin & Sandra Dijke 8/10 5136 days 18%
Jan & Marian 9/10 5139 days 18%
David & Mary-Jane Ryder 10/10 5139 days 18%
Caroline 9/10 5141 days 18%
Leif Sorensen 10/10 5141 days 18%
Andy Lever 5/10 5142 days 14%
Johanna Maria Brigitta 8/10 5142 days 18%
Konny 10/10 5143 days 18%
Theresa 9/10 5143 days 18%
Rudy Witt 9/10 5143 days 18%
Peter Spooner 10/10 5144 days 18%
Gary A 9/10 5157 days 18%
damaca 10/10 5218 days 18%
Janet Arber 9/10 5352 days 18%
Ralph & Marloes Meyers 7/10 5370 days 17%
Derek 10/10 5382 days 18%
Brian & Di 9/10 5384 days 18%
Eric & Liz McKean 10/10 5384 days 18%
Leon van Hengel 8/10 5385 days 18%
Barbara Probert 9/10 5386 days 18%
Kuhu 9/10 5386 days 18%
Richard Dudfield 8/10 5388 days 18%
Robin Adair 10/10 5389 days 18%
Graham Mason 10/10 5389 days 18%
Oppenoorth 9/10 5390 days 18%
Shane Curline 8/10 5392 days 18%
Michael Orme 9/10 5392 days 18%
Peter & Angela Brown 9/10 5392 days 18%
Janey Chamberlain 8/10 5393 days 18%
Joop Ezendam 8/10 5394 days 18%
J Palmer 7/10 5394 days 17%
David Mellard 10/10 5394 days 18%
Nicola Shaw 10/10 5395 days 18%
Diane Johnston 9/10 5395 days 18%
Richard Broughton 9/10 5396 days 18%
Chris & Anne Pearson 6/10 5396 days 16%
Patrick Schaad 9/10 5396 days 18%
Gerstmann 9/10 5396 days 18%
Aln 8/10 5396 days 18%
Fam de Kruyf 8/10 5399 days 18%
Martin 9/10 5400 days 18%
Jack Vermeidem 8/10 5400 days 18%
Jan Visser 8/10 5402 days 18%
Marjan Van Den Braak 7/10 5403 days 17%
Tyson Burnett 8/10 5403 days 18%
John Gray 8/10 5403 days 18%
Colin Lockwood 8/10 5405 days 18%
David Emerick 10/10 5405 days 18%
Hadleigh 9/10 5407 days 18%
Marcus 9/10 5407 days 18%
Manu & Gabi 10/10 5407 days 18%
Peter 8/10 5407 days 18%
Bert Opdam 8/10 5412 days 18%
Anita Aleva 8/10 5414 days 18%
Leslie 9/10 5414 days 18%
Pat MacDonald 9/10 5417 days 18%
Jill Dean 9/10 5417 days 18%
Martin Current 8/10 5417 days 18%
Jane & Regis 9/10 5418 days 18%
Teum and Orselien 6/10 5418 days 16%
Graham 9/10 5418 days 18%
Ross Hughes 8/10 5421 days 18%
Sarraute 9/10 5422 days 18%
Webster 10/10 5423 days 18%
Jarob Brezigar 9/10 5423 days 18%
Lynn Leitch 10/10 5423 days 18%
Lili 6/10 5423 days 16%
Michael Duckert 9/10 5424 days 18%
Loren van Oordt 10/10 5425 days 18%
Tom Hill 10/10 5425 days 18%
D Oostrum 8/10 5425 days 18%
Elinor Bell 9/10 5425 days 18%
Tanner 10/10 5425 days 18%
John Fry 8/10 5425 days 18%
T Chapman 8/10 5425 days 18%
Ewald Waldner 9/10 5426 days 18%
Chris Chasemore 9/10 5426 days 18%
H Schepers 8/10 5426 days 18%
Steve & Susan Allan 9/10 5427 days 18%
Barbara Koegel 8/10 5427 days 18%
Andreas Neo 5/10 5427 days 14%
Grada Anderson 10/10 5430 days 18%
Chamton 8/10 5430 days 18%
Richardr1 10/10 5685 days 18%
Versteeg 8/10 5688 days 18%
Jon van Hanten 8/10 5692 days 18%
Charli Skinner 9/10 5697 days 18%
Kurt 9/10 5700 days 18%
Sophie & Joffrey 7/10 5701 days 17%
Jane and Dave 10/10 5703 days 18%
Peter Aerborg 9/10 5703 days 18%
krisevelyn 8/10 5706 days 18%
steveE 9/10 5706 days 18%
Maria 8/10 5736 days 18%
maggie Webster 7/10 5753 days 17%
katrina Marshall 10/10 5753 days 18%
Bergemann 10/10 5753 days 18%
Don Keith 6/10 5754 days 16%
OMPA 10/10 5755 days 18%
Theresa 10/10 5755 days 18%
George Lepple 10/10 5760 days 18%
Sue S 10/10 5762 days 18%
Ralph 4/10 5764 days 11%
Gerdes 9/10 5764 days 18%
Main 10/10 5768 days 18%
Stanna 9/10 5768 days 18%
Susan & Richard 10/10 5770 days 18%
Zareua Boree 9/10 5770 days 18%
S Millet 9/10 5773 days 18%
Muller Weissert 10/10 5774 days 18%
Frans N 10/10 5775 days 18%
Sue Bennett 8/10 5777 days 18%
Hans de Rijk 7/10 5777 days 17%
David Rich 9/10 5780 days 18%
Walter 8/10 5781 days 18%
Ferth 9/10 5781 days 18%
J Kempeneers 7/10 5781 days 17%
Vandeput 9/10 5781 days 18%
Marco 8/10 5783 days 18%
John Winter 8/10 5792 days 18%
Sinjc Grude 8/10 5792 days 18%
Hoogh 8/10 5792 days 18%
Keith Maplestone 8/10 5794 days 18%
John Rylance 10/10 5794 days 18%
Anne Fri 8/10 5794 days 18%
uleugel 9/10 5804 days 18%
Sabine Locker 8/10 5811 days 18%
Family van Hessem 7/10 5815 days 17%
Alibeare 10/10 5826 days 18%
graemeh1 9/10 5841 days 18%
klinger 10/10 5841 days 18%
wenerz 8/10 5842 days 18%
ilkal 9/10 5843 days 18%
susanl 10/10 5848 days 18%
Robbertsen 6/10 5849 days 16%
pimn 9/10 5851 days 18%
thomash 10/10 5851 days 18%
jamesg 9/10 5855 days 18%
pthreadgood 9/10 5855 days 18%
Gary Brown 10/10 5859 days 18%
Sandra M 8/10 5859 days 18%
dirkdev 9/10 5861 days 18%
Bill Nash 10/10 5861 days 18%
H Simpson 10/10 5861 days 18%
Wolfgang Mages 10/10 5861 days 18%
Colin S 9/10 5865 days 18%
Jenny Davies 8/10 5867 days 18%
Alan Riley 9/10 5869 days 18%
Ann Riley 9/10 5869 days 18%
Hennie Neeleman 9/10 5869 days 18%
Pieter Neeleman 8/10 5869 days 18%
Daniel Alonso 9/10 5869 days 18%
Hans Barth 8/10 5877 days 18%
Jenny and Dave Close 9/10 5880 days 18%
Graham Butt 8/10 5880 days 18%
Claudia 10/10 5880 days 18%
Evan 9/10 5918 days 18%
marleen451 9/10 5918 days 18%
johanw 9/10 5973 days 18%
ulrichk 10/10 5974 days 18%
lee 10/10 6071 days 18%
EvertG 8/10 6082 days 18%
CarolN 8/10 6085 days 18%
Andrew Lonsdale 8/10 6089 days 18%
RosemaryC 7/10 6098 days 17%
Christian Kamm 10/10 6098 days 18%
caroldarren 9/10 6101 days 18%
monikav 10/10 6101 days 18%
Silvia Huerlimann 9/10 6101 days 18%
Kim 8/10 6105 days 18%
PaulC 10/10 6107 days 18%
Thomas1646 9/10 6108 days 18%
HenizV 9/10 6111 days 18%
EstherW 9/10 6111 days 18%
Marc 7/10 6111 days 17%
LosItaly 10/10 6113 days 18%
Rissmann 9/10 6117 days 18%
Mick 10/10 6117 days 18%
Mayer 9/10 6117 days 18%
BernardK 9/10 6118 days 18%
Vivien Williams 10/10 6119 days 18%
Barry Smith 10/10 6121 days 18%
Siemens 8/10 6121 days 18%
Suzie Lechner 10/10 6121 days 18%
Danlin Yang 8/10 6124 days 18%
A 8/10 6125 days 18%
Dalibor 8/10 6135 days 18%
LindaV 8/10 6135 days 18%
RodW 10/10 6135 days 18%
CarstenU 10/10 6135 days 18%
CarolB 10/10 6135 days 18%
Elrik frau 9/10 6135 days 18%
MargaretH 10/10 6136 days 18%
Manfred 8/10 6138 days 18%
Kay 8/10 6144 days 18%
Visken 8/10 6145 days 18%
Pascal 6/10 6152 days 16%
Nienhaus 7/10 6168 days 17%
Anna 5/10 6168 days 14%
Liane 10/10 6169 days 18%
Hove 8/10 6173 days 18%
Roger 10/10 6173 days 18%
Bennie 9/10 6173 days 18%
Ellis 9/10 6173 days 18%
Rob 9/10 6173 days 18%
johanna 9/10 6174 days 18%
Kathrin 9/10 6174 days 18%
tommfuller 10/10 6185 days 18%
philipaindow 9/10 6203 days 18%
Grace 8/10 6206 days 18%
Ellen 9/10 6214 days 18%
Getkate 9/10 6223 days 18%
Sid 10/10 6242 days 18%
Paul 7/10 6279 days 17%
Andrew 10/10 6285 days 18%
Terry 9/10 6292 days 18%
Christine 8/10 6353 days 18%
angela 9/10 6484 days 18%
Hoetnagels 7/10 6484 days 17%
Wolfgang 10/10 6488 days 18%
Ria 9/10 6488 days 18%
Annette Hurst 7/10 6491 days 17%
Klaus 10/10 6492 days 18%
Raymond 9/10 6494 days 18%
Richard Steward 7/10 6498 days 17%
Christine McKenna 9/10 6499 days 18%
Kathy Hawey 9/10 6500 days 18%
Jurg Meister 10/10 6501 days 18%
Jurgen Westphal 7/10 6501 days 17%
Sally and David Wallis 9/10 6501 days 18%
Jackie Horwell 10/10 6502 days 18%
Paula Curtis 10/10 6505 days 18%
Claas 9/10 6514 days 18%
Travis 9/10 6537 days 18%
Maria 9/10 6544 days 18%
Jane Holm 8/10 6549 days 18%
Hans 10/10 6572 days 18%
Chris Gedda 8/10 6575 days 18%
Gabriela Herger 7/10 6583 days 17%
Jane Cameron 10/10 6585 days 18%
Jane Coleman 10/10 6586 days 18%
Lyn Saxon 10/10 6586 days 18%
Samuel Brejeon 8/10 6586 days 18%
Manuel 7/10 6590 days 17%
Ole Weber 9/10 6590 days 18%
Ed van Dael 7/10 6593 days 17%
Rene Schotvanger 9/10 6703 days 18%
Jo 10/10 6703 days 18%
Hans Knappmann 10/10 6703 days 18%
Martjn 8/10 6829 days 18%
Sandra 10/10 6838 days 18%
Ruefli 10/10 6838 days 18%
TeamFlorida 10/10 6838 days 18%
Deloraine 10/10 6838 days 18%
Petra 8/10 6838 days 18%
Anita 8/10 6838 days 18%
Oliver 10/10 6838 days 18%
Petra 10/10 6841 days 18%
Hannah 9/10 6841 days 18%
Michael 9/10 6843 days 18%
M Bekker 8/10 6843 days 18%
sebastian 9/10 6852 days 18%
John Beirne 10/10 6855 days 18%
Angela 9/10 6855 days 18%
Frederik 10/10 6855 days 18%
Pam 10/10 6857 days 18%
Kate 5/10 6859 days 14%
Danyel 9/10 6861 days 18%
Arjan 8/10 6862 days 18%
Manfred 9/10 6864 days 18%
Tom 9/10 6866 days 18%
Stefan 10/10 6871 days 18%
Pini 9/10 6877 days 18%
Gordon 8/10 6878 days 18%
Gillian 9/10 6878 days 18%
frank 8/10 6878 days 18%
Harrison 8/10 6879 days 18%
Hennielene 8/10 6879 days 18%
Beate 9/10 6879 days 18%
Leah 9/10 6879 days 18%
Liz 9/10 6879 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.