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

88.24%

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 1504 days 100%
S Weslake 10/10 2541 days 33%
Wendy 8/10 2939 days 25%
David 9/10 2939 days 26%
DEBBIE LAMBERT 10/10 2950 days 26%
Charlie Friesen 10/10 2995 days 25%
Guenter 10/10 3026 days 24%
Niels 9/10 3034 days 24%
Tom Brien 8/10 3271 days 20%
Carl 9/10 3298 days 19%
Ferry and Carlyn 9/10 3316 days 19%
Virgil Spruit 9/10 3356 days 18%
GONZALEZ ROBERTO 10/10 3423 days 17%
Megan 10/10 3630 days 13%
Felix Holm 7/10 3708 days 11%
Marion and Ralf 9/10 3727 days 12%
Astrid Egesten 4/10 3734 days 8%
Anna Grafenstein 8/10 3967 days 7%
Alisa 10/10 3970 days 7%
Laura 10/10 3970 days 7%
Jan Legein 10/10 3979 days 7%
Veeh Barrington 7/10 4003 days 6%
Rita Hochstiasser 8/10 4027 days 6%
Sue L 10/10 4030 days 6%
Brian 8/10 4122 days 5%
Christin Woelk 9/10 4331 days 1%
Rouquette 7/10 4377 days 0%
Bucher 10/10 4442 days 9%
Tony Hines 9/10 4443 days 9%
Al Stuart 6/10 4444 days 8%
Moorman 7/10 4448 days 9%
Urs Kloter 8/10 4448 days 9%
Brian Howe 10/10 4450 days 9%
Peter 10/10 4450 days 9%
Reinhard Stahl 9/10 4462 days 9%
Reinhard Stahl 9/10 4462 days 9%
Urs Zuercher 10/10 4462 days 9%
Peter Harden 10/10 4462 days 9%
Reijans 9/10 4463 days 9%
Judy 10/10 4466 days 9%
Henzen 8/10 4466 days 9%
Eric and Jen Popma 10/10 4467 days 9%
Stevie 9/10 4469 days 9%
Christian 10/10 4469 days 9%
Frederick Neilsen 6/10 4469 days 8%
John Freeman 10/10 4473 days 9%
Verest 9/10 4473 days 9%
Kali Lohman 7/10 4473 days 9%
Ton Franke 9/10 4473 days 9%
Stefan Roth 9/10 4473 days 9%
Marjo Cousijn 9/10 4474 days 9%
Megan Child 7/10 4474 days 9%
Roshnie 6/10 4487 days 8%
Adrian Weidell 8/10 4662 days 9%
Dovis Heinemann 10/10 4716 days 9%
Mark Westebring 8/10 4719 days 9%
Sally Gordie 8/10 4719 days 9%
Oliver Hardt 8/10 4721 days 9%
Petr Stepanek 10/10 4724 days 9%
Clausen 9/10 4725 days 9%
Val Phillips 9/10 4725 days 9%
Sabrina Germany 6/10 4727 days 8%
Armin Boehmer 8/10 4727 days 9%
Frank Claassen 7/10 4728 days 9%
tmdilly 7/10 4732 days 9%
Wright 8/10 4736 days 9%
B Sluis 8/10 4741 days 9%
Mark Bogton 9/10 4741 days 9%
Karl Brachtl 10/10 4741 days 9%
Michael Stoll 7/10 4742 days 9%
Martin & Dee Bellarby 10/10 4742 days 9%
Patrick Grant 9/10 4742 days 9%
Miina Hyuonen 8/10 4743 days 9%
Peter & Kate Carmichael 8/10 4743 days 9%
Chris 8/10 4743 days 9%
Stam 8/10 4743 days 9%
Nico Schoots 7/10 4743 days 9%
Russell Eames 8/10 4744 days 9%
Annie 8/10 4744 days 9%
R E Webb 8/10 4744 days 9%
Mickey 7/10 4744 days 9%
Cynthia 10/10 4744 days 9%
Rene 10/10 4744 days 9%
Patricia Fearon 8/10 4744 days 9%
Jacques Duyvestijn 8/10 4745 days 9%
Dominique 9/10 4745 days 9%
Russell 9/10 4746 days 9%
M Abbott 9/10 4746 days 9%
Walter & Heidi Baumann 10/10 4746 days 9%
Houter 8/10 4746 days 9%
Diane Moss 8/10 4746 days 9%
Robert McIlraith 10/10 4747 days 9%
Susie Christensen 8/10 4747 days 9%
Nic Roggeman 9/10 4748 days 9%
Thomas & Ruth Hardmeier 10/10 4749 days 9%
de Weijer 8/10 4749 days 9%
Beyeler 10/10 4749 days 9%
Aled 8/10 4750 days 9%
Lynn Robinson 9/10 4753 days 9%
Suzanne van Kol 9/10 4754 days 9%
Schweiger 10/10 4756 days 9%
Rowena and Ian Lanyon 9/10 4756 days 9%
Robert MacLeod-Smith 8/10 4757 days 9%
Soren Storeboerg 8/10 4758 days 9%
Steve Collier 9/10 4760 days 9%
Dick van Doorn 8/10 4760 days 9%
Heini 8/10 4760 days 9%
Barrie Corless 9/10 4760 days 9%
Stig Domander 9/10 4774 days 9%
Rhi 10/10 4792 days 9%
Tobias Forst 8/10 4824 days 9%
Arnoldus Bergmans 9/10 4827 days 9%
Dirk Faupel 9/10 4827 days 9%
Dirk Faupel 9/10 4827 days 9%
Chris Muller 8/10 4827 days 9%
Jo Delbrugge 9/10 4827 days 9%
Sarah and Soren 9/10 4829 days 9%
van Rees 9/10 4832 days 9%
Robin & Sandra Dijke 8/10 4832 days 9%
Jan & Marian 9/10 4835 days 9%
David & Mary-Jane Ryder 10/10 4835 days 9%
Caroline 9/10 4837 days 9%
Leif Sorensen 10/10 4837 days 9%
Andy Lever 5/10 4838 days 7%
Johanna Maria Brigitta 8/10 4838 days 9%
Konny 10/10 4839 days 9%
Theresa 9/10 4839 days 9%
Rudy Witt 9/10 4839 days 9%
Peter Spooner 10/10 4840 days 9%
Gary A 9/10 4853 days 9%
damaca 10/10 4914 days 9%
Janet Arber 9/10 5048 days 9%
Ralph & Marloes Meyers 7/10 5066 days 9%
Derek 10/10 5078 days 9%
Brian & Di 9/10 5080 days 9%
Eric & Liz McKean 10/10 5080 days 9%
Leon van Hengel 8/10 5081 days 9%
Barbara Probert 9/10 5082 days 9%
Kuhu 9/10 5082 days 9%
Richard Dudfield 8/10 5084 days 9%
Robin Adair 10/10 5085 days 9%
Graham Mason 10/10 5085 days 9%
Oppenoorth 9/10 5086 days 9%
Shane Curline 8/10 5088 days 9%
Michael Orme 9/10 5088 days 9%
Peter & Angela Brown 9/10 5088 days 9%
Janey Chamberlain 8/10 5089 days 9%
Joop Ezendam 8/10 5090 days 9%
J Palmer 7/10 5090 days 9%
David Mellard 10/10 5090 days 9%
Nicola Shaw 10/10 5091 days 9%
Diane Johnston 9/10 5091 days 9%
Richard Broughton 9/10 5092 days 9%
Chris & Anne Pearson 6/10 5092 days 8%
Patrick Schaad 9/10 5092 days 9%
Gerstmann 9/10 5092 days 9%
Aln 8/10 5092 days 9%
Fam de Kruyf 8/10 5095 days 9%
Martin 9/10 5096 days 9%
Jack Vermeidem 8/10 5096 days 9%
Jan Visser 8/10 5098 days 9%
Marjan Van Den Braak 7/10 5099 days 9%
Tyson Burnett 8/10 5099 days 9%
John Gray 8/10 5099 days 9%
Colin Lockwood 8/10 5101 days 9%
David Emerick 10/10 5101 days 9%
Hadleigh 9/10 5103 days 9%
Marcus 9/10 5103 days 9%
Manu & Gabi 10/10 5103 days 9%
Peter 8/10 5103 days 9%
Bert Opdam 8/10 5108 days 9%
Anita Aleva 8/10 5110 days 9%
Leslie 9/10 5110 days 9%
Pat MacDonald 9/10 5113 days 9%
Jill Dean 9/10 5113 days 9%
Martin Current 8/10 5113 days 9%
Jane & Regis 9/10 5114 days 9%
Teum and Orselien 6/10 5114 days 8%
Graham 9/10 5114 days 9%
Ross Hughes 8/10 5117 days 9%
Sarraute 9/10 5118 days 9%
Webster 10/10 5119 days 9%
Jarob Brezigar 9/10 5119 days 9%
Lynn Leitch 10/10 5119 days 9%
Lili 6/10 5119 days 8%
Michael Duckert 9/10 5120 days 9%
Loren van Oordt 10/10 5121 days 9%
Tom Hill 10/10 5121 days 9%
D Oostrum 8/10 5121 days 9%
Elinor Bell 9/10 5121 days 9%
Tanner 10/10 5121 days 9%
John Fry 8/10 5121 days 9%
T Chapman 8/10 5121 days 9%
Ewald Waldner 9/10 5122 days 9%
Chris Chasemore 9/10 5122 days 9%
H Schepers 8/10 5122 days 9%
Steve & Susan Allan 9/10 5123 days 9%
Barbara Koegel 8/10 5123 days 9%
Andreas Neo 5/10 5123 days 7%
Grada Anderson 10/10 5126 days 9%
Chamton 8/10 5126 days 9%
Richardr1 10/10 5381 days 9%
Versteeg 8/10 5384 days 9%
Jon van Hanten 8/10 5388 days 9%
Charli Skinner 9/10 5393 days 9%
Kurt 9/10 5396 days 9%
Sophie & Joffrey 7/10 5397 days 9%
Jane and Dave 10/10 5399 days 9%
Peter Aerborg 9/10 5399 days 9%
krisevelyn 8/10 5402 days 9%
steveE 9/10 5402 days 9%
Maria 8/10 5432 days 9%
maggie Webster 7/10 5449 days 9%
katrina Marshall 10/10 5449 days 9%
Bergemann 10/10 5449 days 9%
Don Keith 6/10 5450 days 8%
OMPA 10/10 5451 days 9%
Theresa 10/10 5451 days 9%
George Lepple 10/10 5456 days 9%
Sue S 10/10 5458 days 9%
Ralph 4/10 5460 days 6%
Gerdes 9/10 5460 days 9%
Main 10/10 5464 days 9%
Stanna 9/10 5464 days 9%
Susan & Richard 10/10 5466 days 9%
Zareua Boree 9/10 5466 days 9%
S Millet 9/10 5469 days 9%
Muller Weissert 10/10 5470 days 9%
Frans N 10/10 5471 days 9%
Sue Bennett 8/10 5473 days 9%
Hans de Rijk 7/10 5473 days 9%
David Rich 9/10 5476 days 9%
Walter 8/10 5477 days 9%
Ferth 9/10 5477 days 9%
J Kempeneers 7/10 5477 days 9%
Vandeput 9/10 5477 days 9%
Marco 8/10 5479 days 9%
John Winter 8/10 5488 days 9%
Sinjc Grude 8/10 5488 days 9%
Hoogh 8/10 5488 days 9%
Keith Maplestone 8/10 5490 days 9%
John Rylance 10/10 5490 days 9%
Anne Fri 8/10 5490 days 9%
uleugel 9/10 5500 days 9%
Sabine Locker 8/10 5507 days 9%
Family van Hessem 7/10 5511 days 9%
Alibeare 10/10 5522 days 9%
graemeh1 9/10 5537 days 9%
klinger 10/10 5537 days 9%
wenerz 8/10 5538 days 9%
ilkal 9/10 5539 days 9%
susanl 10/10 5544 days 9%
Robbertsen 6/10 5545 days 8%
pimn 9/10 5547 days 9%
thomash 10/10 5547 days 9%
jamesg 9/10 5551 days 9%
pthreadgood 9/10 5551 days 9%
Gary Brown 10/10 5555 days 9%
Sandra M 8/10 5555 days 9%
dirkdev 9/10 5557 days 9%
Bill Nash 10/10 5557 days 9%
H Simpson 10/10 5557 days 9%
Wolfgang Mages 10/10 5557 days 9%
Colin S 9/10 5561 days 9%
Jenny Davies 8/10 5563 days 9%
Alan Riley 9/10 5565 days 9%
Ann Riley 9/10 5565 days 9%
Hennie Neeleman 9/10 5565 days 9%
Pieter Neeleman 8/10 5565 days 9%
Daniel Alonso 9/10 5565 days 9%
Hans Barth 8/10 5573 days 9%
Jenny and Dave Close 9/10 5576 days 9%
Graham Butt 8/10 5576 days 9%
Claudia 10/10 5576 days 9%
Evan 9/10 5614 days 9%
marleen451 9/10 5614 days 9%
johanw 9/10 5669 days 9%
ulrichk 10/10 5670 days 9%
lee 10/10 5767 days 9%
EvertG 8/10 5778 days 9%
CarolN 8/10 5781 days 9%
Andrew Lonsdale 8/10 5785 days 9%
RosemaryC 7/10 5794 days 9%
Christian Kamm 10/10 5794 days 9%
caroldarren 9/10 5797 days 9%
monikav 10/10 5797 days 9%
Silvia Huerlimann 9/10 5797 days 9%
Kim 8/10 5801 days 9%
PaulC 10/10 5803 days 9%
Thomas1646 9/10 5804 days 9%
HenizV 9/10 5806 days 9%
EstherW 9/10 5807 days 9%
Marc 7/10 5807 days 9%
LosItaly 10/10 5809 days 9%
Rissmann 9/10 5813 days 9%
Mick 10/10 5813 days 9%
Mayer 9/10 5813 days 9%
BernardK 9/10 5814 days 9%
Vivien Williams 10/10 5815 days 9%
Barry Smith 10/10 5817 days 9%
Siemens 8/10 5817 days 9%
Suzie Lechner 10/10 5817 days 9%
Danlin Yang 8/10 5820 days 9%
A 8/10 5821 days 9%
Dalibor 8/10 5831 days 9%
LindaV 8/10 5831 days 9%
RodW 10/10 5831 days 9%
CarstenU 10/10 5831 days 9%
CarolB 10/10 5831 days 9%
Elrik frau 9/10 5831 days 9%
MargaretH 10/10 5832 days 9%
Manfred 8/10 5834 days 9%
Kay 8/10 5840 days 9%
Visken 8/10 5840 days 9%
Pascal 6/10 5848 days 8%
Nienhaus 7/10 5864 days 9%
Anna 5/10 5864 days 7%
Liane 10/10 5865 days 9%
Hove 8/10 5869 days 9%
Roger 10/10 5869 days 9%
Bennie 9/10 5869 days 9%
Ellis 9/10 5869 days 9%
Rob 9/10 5869 days 9%
johanna 9/10 5870 days 9%
Kathrin 9/10 5870 days 9%
tommfuller 10/10 5881 days 9%
philipaindow 9/10 5899 days 9%
Grace 8/10 5902 days 9%
Ellen 9/10 5910 days 9%
Getkate 9/10 5919 days 9%
Sid 10/10 5938 days 9%
Paul 7/10 5974 days 9%
Andrew 10/10 5980 days 9%
Terry 9/10 5987 days 9%
Christine 8/10 6049 days 9%
angela 9/10 6180 days 9%
Hoetnagels 7/10 6180 days 9%
Wolfgang 10/10 6184 days 9%
Ria 9/10 6184 days 9%
Annette Hurst 7/10 6187 days 9%
Klaus 10/10 6188 days 9%
Raymond 9/10 6190 days 9%
Richard Steward 7/10 6194 days 9%
Christine McKenna 9/10 6195 days 9%
Kathy Hawey 9/10 6196 days 9%
Jurg Meister 10/10 6197 days 9%
Jurgen Westphal 7/10 6197 days 9%
Sally and David Wallis 9/10 6197 days 9%
Jackie Horwell 10/10 6198 days 9%
Paula Curtis 10/10 6201 days 9%
Claas 9/10 6210 days 9%
Travis 9/10 6233 days 9%
Maria 9/10 6240 days 9%
Jane Holm 8/10 6245 days 9%
Hans 10/10 6268 days 9%
Chris Gedda 8/10 6271 days 9%
Gabriela Herger 7/10 6279 days 9%
Jane Cameron 10/10 6281 days 9%
Jane Coleman 10/10 6282 days 9%
Lyn Saxon 10/10 6282 days 9%
Samuel Brejeon 8/10 6282 days 9%
Manuel 7/10 6286 days 9%
Ole Weber 9/10 6286 days 9%
Ed van Dael 7/10 6289 days 9%
Rene Schotvanger 9/10 6399 days 9%
Jo 10/10 6399 days 9%
Hans Knappmann 10/10 6399 days 9%
Martjn 8/10 6525 days 9%
Sandra 10/10 6534 days 9%
Ruefli 10/10 6534 days 9%
TeamFlorida 10/10 6534 days 9%
Deloraine 10/10 6534 days 9%
Petra 8/10 6534 days 9%
Anita 8/10 6534 days 9%
Oliver 10/10 6534 days 9%
Petra 10/10 6537 days 9%
Hannah 9/10 6537 days 9%
Michael 9/10 6539 days 9%
M Bekker 8/10 6539 days 9%
sebastian 9/10 6548 days 9%
John Beirne 10/10 6551 days 9%
Angela 9/10 6551 days 9%
Frederik 10/10 6551 days 9%
Pam 10/10 6553 days 9%
Kate 5/10 6555 days 7%
Danyel 9/10 6557 days 9%
Arjan 8/10 6558 days 9%
Manfred 9/10 6560 days 9%
Tom 9/10 6562 days 9%
Stefan 10/10 6567 days 9%
Pini 9/10 6573 days 9%
Gordon 8/10 6574 days 9%
Gillian 9/10 6574 days 9%
frank 8/10 6574 days 9%
Harrison 8/10 6575 days 9%
Hennielene 8/10 6575 days 9%
Beate 9/10 6575 days 9%
Leah 9/10 6575 days 9%
Liz 9/10 6575 days 9%

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

-4.15% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 52 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 -4.09%
198 -4.11%
199 -4.13%
200 -4.15%
201 -4.18%
202 -4.20%
203 -4.22%

Balancing Adjustment

2.01% 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.