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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 1802 days 100%
S Weslake 10/10 2839 days 59%
Wendy 8/10 3237 days 42%
David 9/10 3237 days 43%
DEBBIE LAMBERT 10/10 3248 days 43%
Charlie Friesen 10/10 3293 days 41%
Guenter 10/10 3323 days 40%
Niels 9/10 3332 days 39%
Tom Brien 8/10 3569 days 30%
Carl 9/10 3596 days 29%
Ferry and Carlyn 9/10 3614 days 28%
Virgil Spruit 9/10 3654 days 26%
GONZALEZ ROBERTO 10/10 3720 days 24%
Megan 10/10 3928 days 16%
Felix Holm 7/10 4006 days 12%
Marion and Ralf 9/10 4025 days 12%
Astrid Egesten 4/10 4032 days 7%
Anna Grafenstein 8/10 4265 days 2%
Alisa 10/10 4268 days 2%
Laura 10/10 4268 days 2%
Jan Legein 10/10 4277 days 2%
Veeh Barrington 7/10 4301 days 1%
Rita Hochstiasser 8/10 4325 days 0%
Sue L 10/10 4328 days 0%
Brian 8/10 4420 days 18%
Christin Woelk 9/10 4629 days 18%
Rouquette 7/10 4675 days 17%
Bucher 10/10 4740 days 18%
Tony Hines 9/10 4741 days 18%
Al Stuart 6/10 4742 days 15%
Moorman 7/10 4746 days 17%
Urs Kloter 8/10 4746 days 18%
Brian Howe 10/10 4748 days 18%
Peter 10/10 4748 days 18%
Reinhard Stahl 9/10 4760 days 18%
Reinhard Stahl 9/10 4760 days 18%
Urs Zuercher 10/10 4760 days 18%
Peter Harden 10/10 4760 days 18%
Reijans 9/10 4761 days 18%
Judy 10/10 4764 days 18%
Henzen 8/10 4764 days 18%
Eric and Jen Popma 10/10 4765 days 18%
Stevie 9/10 4767 days 18%
Christian 10/10 4767 days 18%
Frederick Neilsen 6/10 4767 days 15%
John Freeman 10/10 4771 days 18%
Verest 9/10 4771 days 18%
Kali Lohman 7/10 4771 days 17%
Ton Franke 9/10 4771 days 18%
Stefan Roth 9/10 4771 days 18%
Marjo Cousijn 9/10 4772 days 18%
Megan Child 7/10 4772 days 17%
Roshnie 6/10 4785 days 15%
Adrian Weidell 8/10 4959 days 18%
Dovis Heinemann 10/10 5014 days 18%
Mark Westebring 8/10 5017 days 18%
Sally Gordie 8/10 5017 days 18%
Oliver Hardt 8/10 5019 days 18%
Petr Stepanek 10/10 5022 days 18%
Clausen 9/10 5023 days 18%
Val Phillips 9/10 5023 days 18%
Sabrina Germany 6/10 5025 days 15%
Armin Boehmer 8/10 5025 days 18%
Frank Claassen 7/10 5026 days 17%
tmdilly 7/10 5030 days 17%
Wright 8/10 5034 days 18%
B Sluis 8/10 5039 days 18%
Mark Bogton 9/10 5039 days 18%
Karl Brachtl 10/10 5039 days 18%
Michael Stoll 7/10 5040 days 17%
Martin & Dee Bellarby 10/10 5040 days 18%
Patrick Grant 9/10 5040 days 18%
Miina Hyuonen 8/10 5041 days 18%
Peter & Kate Carmichael 8/10 5041 days 18%
Chris 8/10 5041 days 18%
Stam 8/10 5041 days 18%
Nico Schoots 7/10 5041 days 17%
Russell Eames 8/10 5042 days 18%
Annie 8/10 5042 days 18%
R E Webb 8/10 5042 days 18%
Mickey 7/10 5042 days 17%
Cynthia 10/10 5042 days 18%
Rene 10/10 5042 days 18%
Patricia Fearon 8/10 5042 days 18%
Jacques Duyvestijn 8/10 5043 days 18%
Dominique 9/10 5043 days 18%
Russell 9/10 5044 days 18%
M Abbott 9/10 5044 days 18%
Walter & Heidi Baumann 10/10 5044 days 18%
Houter 8/10 5044 days 18%
Diane Moss 8/10 5044 days 18%
Robert McIlraith 10/10 5045 days 18%
Susie Christensen 8/10 5045 days 18%
Nic Roggeman 9/10 5046 days 18%
Thomas & Ruth Hardmeier 10/10 5047 days 18%
de Weijer 8/10 5047 days 18%
Beyeler 10/10 5047 days 18%
Aled 8/10 5048 days 18%
Lynn Robinson 9/10 5051 days 18%
Suzanne van Kol 9/10 5052 days 18%
Schweiger 10/10 5054 days 18%
Rowena and Ian Lanyon 9/10 5054 days 18%
Robert MacLeod-Smith 8/10 5055 days 18%
Soren Storeboerg 8/10 5056 days 18%
Steve Collier 9/10 5058 days 18%
Dick van Doorn 8/10 5058 days 18%
Heini 8/10 5058 days 18%
Barrie Corless 9/10 5058 days 18%
Stig Domander 9/10 5072 days 18%
Rhi 10/10 5090 days 18%
Tobias Forst 8/10 5122 days 18%
Arnoldus Bergmans 9/10 5125 days 18%
Dirk Faupel 9/10 5125 days 18%
Dirk Faupel 9/10 5125 days 18%
Chris Muller 8/10 5125 days 18%
Jo Delbrugge 9/10 5125 days 18%
Sarah and Soren 9/10 5127 days 18%
van Rees 9/10 5130 days 18%
Robin & Sandra Dijke 8/10 5130 days 18%
Jan & Marian 9/10 5133 days 18%
David & Mary-Jane Ryder 10/10 5133 days 18%
Caroline 9/10 5135 days 18%
Leif Sorensen 10/10 5135 days 18%
Andy Lever 5/10 5136 days 13%
Johanna Maria Brigitta 8/10 5136 days 18%
Konny 10/10 5137 days 18%
Theresa 9/10 5137 days 18%
Rudy Witt 9/10 5137 days 18%
Peter Spooner 10/10 5138 days 18%
Gary A 9/10 5151 days 18%
damaca 10/10 5211 days 18%
Janet Arber 9/10 5345 days 18%
Ralph & Marloes Meyers 7/10 5364 days 17%
Derek 10/10 5376 days 18%
Brian & Di 9/10 5378 days 18%
Eric & Liz McKean 10/10 5378 days 18%
Leon van Hengel 8/10 5379 days 18%
Barbara Probert 9/10 5380 days 18%
Kuhu 9/10 5380 days 18%
Richard Dudfield 8/10 5382 days 18%
Robin Adair 10/10 5383 days 18%
Graham Mason 10/10 5383 days 18%
Oppenoorth 9/10 5384 days 18%
Shane Curline 8/10 5386 days 18%
Michael Orme 9/10 5386 days 18%
Peter & Angela Brown 9/10 5386 days 18%
Janey Chamberlain 8/10 5387 days 18%
Joop Ezendam 8/10 5388 days 18%
J Palmer 7/10 5388 days 17%
David Mellard 10/10 5388 days 18%
Nicola Shaw 10/10 5389 days 18%
Diane Johnston 9/10 5389 days 18%
Richard Broughton 9/10 5390 days 18%
Chris & Anne Pearson 6/10 5390 days 15%
Patrick Schaad 9/10 5390 days 18%
Gerstmann 9/10 5390 days 18%
Aln 8/10 5390 days 18%
Fam de Kruyf 8/10 5393 days 18%
Martin 9/10 5394 days 18%
Jack Vermeidem 8/10 5394 days 18%
Jan Visser 8/10 5396 days 18%
Marjan Van Den Braak 7/10 5397 days 17%
Tyson Burnett 8/10 5397 days 18%
John Gray 8/10 5397 days 18%
Colin Lockwood 8/10 5399 days 18%
David Emerick 10/10 5399 days 18%
Hadleigh 9/10 5401 days 18%
Marcus 9/10 5401 days 18%
Manu & Gabi 10/10 5401 days 18%
Peter 8/10 5401 days 18%
Bert Opdam 8/10 5406 days 18%
Anita Aleva 8/10 5408 days 18%
Leslie 9/10 5408 days 18%
Pat MacDonald 9/10 5411 days 18%
Jill Dean 9/10 5411 days 18%
Martin Current 8/10 5411 days 18%
Jane & Regis 9/10 5412 days 18%
Teum and Orselien 6/10 5412 days 15%
Graham 9/10 5412 days 18%
Ross Hughes 8/10 5415 days 18%
Sarraute 9/10 5416 days 18%
Webster 10/10 5417 days 18%
Jarob Brezigar 9/10 5417 days 18%
Lynn Leitch 10/10 5417 days 18%
Lili 6/10 5417 days 15%
Michael Duckert 9/10 5418 days 18%
Loren van Oordt 10/10 5419 days 18%
Tom Hill 10/10 5419 days 18%
D Oostrum 8/10 5419 days 18%
Elinor Bell 9/10 5419 days 18%
Tanner 10/10 5419 days 18%
John Fry 8/10 5419 days 18%
T Chapman 8/10 5419 days 18%
Ewald Waldner 9/10 5420 days 18%
Chris Chasemore 9/10 5420 days 18%
H Schepers 8/10 5420 days 18%
Steve & Susan Allan 9/10 5421 days 18%
Barbara Koegel 8/10 5421 days 18%
Andreas Neo 5/10 5421 days 13%
Grada Anderson 10/10 5424 days 18%
Chamton 8/10 5424 days 18%
Richardr1 10/10 5678 days 18%
Versteeg 8/10 5681 days 18%
Jon van Hanten 8/10 5685 days 18%
Charli Skinner 9/10 5690 days 18%
Kurt 9/10 5693 days 18%
Sophie & Joffrey 7/10 5694 days 17%
Jane and Dave 10/10 5696 days 18%
Peter Aerborg 9/10 5696 days 18%
krisevelyn 8/10 5699 days 18%
steveE 9/10 5699 days 18%
Maria 8/10 5730 days 18%
maggie Webster 7/10 5747 days 17%
katrina Marshall 10/10 5747 days 18%
Bergemann 10/10 5747 days 18%
Don Keith 6/10 5748 days 15%
OMPA 10/10 5749 days 18%
Theresa 10/10 5749 days 18%
George Lepple 10/10 5754 days 18%
Sue S 10/10 5756 days 18%
Ralph 4/10 5758 days 11%
Gerdes 9/10 5758 days 18%
Main 10/10 5762 days 18%
Stanna 9/10 5762 days 18%
Susan & Richard 10/10 5764 days 18%
Zareua Boree 9/10 5764 days 18%
S Millet 9/10 5767 days 18%
Muller Weissert 10/10 5768 days 18%
Frans N 10/10 5769 days 18%
Sue Bennett 8/10 5771 days 18%
Hans de Rijk 7/10 5771 days 17%
David Rich 9/10 5774 days 18%
Walter 8/10 5775 days 18%
Ferth 9/10 5775 days 18%
J Kempeneers 7/10 5775 days 17%
Vandeput 9/10 5775 days 18%
Marco 8/10 5777 days 18%
John Winter 8/10 5786 days 18%
Sinjc Grude 8/10 5786 days 18%
Hoogh 8/10 5786 days 18%
Keith Maplestone 8/10 5788 days 18%
John Rylance 10/10 5788 days 18%
Anne Fri 8/10 5788 days 18%
uleugel 9/10 5798 days 18%
Sabine Locker 8/10 5805 days 18%
Family van Hessem 7/10 5809 days 17%
Alibeare 10/10 5820 days 18%
graemeh1 9/10 5835 days 18%
klinger 10/10 5835 days 18%
wenerz 8/10 5836 days 18%
ilkal 9/10 5837 days 18%
susanl 10/10 5842 days 18%
Robbertsen 6/10 5843 days 15%
pimn 9/10 5845 days 18%
thomash 10/10 5845 days 18%
jamesg 9/10 5849 days 18%
pthreadgood 9/10 5849 days 18%
Gary Brown 10/10 5853 days 18%
Sandra M 8/10 5853 days 18%
dirkdev 9/10 5855 days 18%
Bill Nash 10/10 5855 days 18%
H Simpson 10/10 5855 days 18%
Wolfgang Mages 10/10 5855 days 18%
Colin S 9/10 5859 days 18%
Jenny Davies 8/10 5861 days 18%
Alan Riley 9/10 5863 days 18%
Ann Riley 9/10 5863 days 18%
Hennie Neeleman 9/10 5863 days 18%
Pieter Neeleman 8/10 5863 days 18%
Daniel Alonso 9/10 5863 days 18%
Hans Barth 8/10 5871 days 18%
Jenny and Dave Close 9/10 5874 days 18%
Graham Butt 8/10 5874 days 18%
Claudia 10/10 5874 days 18%
Evan 9/10 5912 days 18%
marleen451 9/10 5912 days 18%
johanw 9/10 5966 days 18%
ulrichk 10/10 5967 days 18%
lee 10/10 6064 days 18%
EvertG 8/10 6075 days 18%
CarolN 8/10 6078 days 18%
Andrew Lonsdale 8/10 6082 days 18%
RosemaryC 7/10 6092 days 17%
Christian Kamm 10/10 6092 days 18%
caroldarren 9/10 6095 days 18%
monikav 10/10 6095 days 18%
Silvia Huerlimann 9/10 6095 days 18%
Kim 8/10 6099 days 18%
PaulC 10/10 6101 days 18%
Thomas1646 9/10 6102 days 18%
HenizV 9/10 6104 days 18%
EstherW 9/10 6104 days 18%
Marc 7/10 6104 days 17%
LosItaly 10/10 6107 days 18%
Rissmann 9/10 6111 days 18%
Mick 10/10 6111 days 18%
Mayer 9/10 6111 days 18%
BernardK 9/10 6112 days 18%
Vivien Williams 10/10 6113 days 18%
Barry Smith 10/10 6115 days 18%
Siemens 8/10 6115 days 18%
Suzie Lechner 10/10 6115 days 18%
Danlin Yang 8/10 6118 days 18%
A 8/10 6119 days 18%
Dalibor 8/10 6129 days 18%
LindaV 8/10 6129 days 18%
RodW 10/10 6129 days 18%
CarstenU 10/10 6129 days 18%
CarolB 10/10 6129 days 18%
Elrik frau 9/10 6129 days 18%
MargaretH 10/10 6130 days 18%
Manfred 8/10 6131 days 18%
Kay 8/10 6138 days 18%
Visken 8/10 6138 days 18%
Pascal 6/10 6146 days 15%
Nienhaus 7/10 6162 days 17%
Anna 5/10 6162 days 13%
Liane 10/10 6163 days 18%
Hove 8/10 6167 days 18%
Roger 10/10 6167 days 18%
Bennie 9/10 6167 days 18%
Ellis 9/10 6167 days 18%
Rob 9/10 6167 days 18%
johanna 9/10 6168 days 18%
Kathrin 9/10 6168 days 18%
tommfuller 10/10 6179 days 18%
philipaindow 9/10 6197 days 18%
Grace 8/10 6199 days 18%
Ellen 9/10 6208 days 18%
Getkate 9/10 6216 days 18%
Sid 10/10 6235 days 18%
Paul 7/10 6272 days 17%
Andrew 10/10 6278 days 18%
Terry 9/10 6285 days 18%
Christine 8/10 6347 days 18%
angela 9/10 6478 days 18%
Hoetnagels 7/10 6478 days 17%
Wolfgang 10/10 6482 days 18%
Ria 9/10 6482 days 18%
Annette Hurst 7/10 6485 days 17%
Klaus 10/10 6486 days 18%
Raymond 9/10 6488 days 18%
Richard Steward 7/10 6492 days 17%
Christine McKenna 9/10 6493 days 18%
Kathy Hawey 9/10 6494 days 18%
Jurg Meister 10/10 6495 days 18%
Jurgen Westphal 7/10 6495 days 17%
Sally and David Wallis 9/10 6495 days 18%
Jackie Horwell 10/10 6496 days 18%
Paula Curtis 10/10 6499 days 18%
Claas 9/10 6508 days 18%
Travis 9/10 6531 days 18%
Maria 9/10 6538 days 18%
Jane Holm 8/10 6543 days 18%
Hans 10/10 6566 days 18%
Chris Gedda 8/10 6569 days 18%
Gabriela Herger 7/10 6577 days 17%
Jane Cameron 10/10 6579 days 18%
Jane Coleman 10/10 6580 days 18%
Lyn Saxon 10/10 6580 days 18%
Samuel Brejeon 8/10 6580 days 18%
Manuel 7/10 6584 days 17%
Ole Weber 9/10 6584 days 18%
Ed van Dael 7/10 6587 days 17%
Rene Schotvanger 9/10 6696 days 18%
Jo 10/10 6696 days 18%
Hans Knappmann 10/10 6696 days 18%
Martjn 8/10 6822 days 18%
Sandra 10/10 6831 days 18%
Ruefli 10/10 6831 days 18%
TeamFlorida 10/10 6831 days 18%
Deloraine 10/10 6831 days 18%
Petra 8/10 6831 days 18%
Anita 8/10 6831 days 18%
Oliver 10/10 6831 days 18%
Petra 10/10 6834 days 18%
Hannah 9/10 6834 days 18%
Michael 9/10 6836 days 18%
M Bekker 8/10 6836 days 18%
sebastian 9/10 6846 days 18%
John Beirne 10/10 6849 days 18%
Angela 9/10 6849 days 18%
Frederik 10/10 6849 days 18%
Pam 10/10 6851 days 18%
Kate 5/10 6853 days 13%
Danyel 9/10 6855 days 18%
Arjan 8/10 6856 days 18%
Manfred 9/10 6858 days 18%
Tom 9/10 6860 days 18%
Stefan 10/10 6865 days 18%
Pini 9/10 6871 days 18%
Gordon 8/10 6872 days 18%
Gillian 9/10 6872 days 18%
frank 8/10 6872 days 18%
Harrison 8/10 6873 days 18%
Hennielene 8/10 6873 days 18%
Beate 9/10 6873 days 18%
Leah 9/10 6873 days 18%
Liz 9/10 6873 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

-4.07% 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 -4.01%
198 -4.03%
199 -4.05%
200 -4.07%
201 -4.09%
202 -4.11%
203 -4.13%
… …

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.