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Ranking Score Explained

Hey, 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 Franz Josef Glacier Guides.

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.

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Cymen Crick's avatar

Cymen Crick

Rankers Owner

Franz Josef Glacier Guides

Valid Reviews

314 Valid Reviews

The Franz Josef Glacier Guides experience has a total of 316 reviews. There are 314 valid reviews that are included when calculating the ranking score and 2 invalid reviews 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 314 valid reviews:

Rating Count Percentage
10/10 76
24%
9/10 90
29%
8/10 84
27%
7/10 36
11%
6/10 14
4%
5/10 8
3%
4/10 2
1%
3/10 3
1%
2/10 0
0%
1/10 1
0%

83.95% Average

The raw data average (mean) for all the Franz Josef Glacier Guides valid reviews is 83.95% and is based on 314 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

281 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 314 valid reviews, the experience has 281 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 281 face-to-face reviews:

Rating Count Percentage
10/10 65
23%
9/10 81
29%
8/10 81
29%
7/10 30
11%
6/10 12
4%
5/10 7
2%
4/10 2
1%
3/10 2
1%
2/10 0
0%
1/10 1
0%

83.95% Average

The raw data average (mean) for all the Franz Josef Glacier Guides face-to-face reviews is 83.95% and is based on 281 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

85.17%

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
Fran and Ben 10/10 2972 days 100%
Jessica Freeland 10/10 3033 days 95%
Nanna Overbeck 10/10 3045 days 94%
Joe Rogers 9/10 3326 days 68%
Nicola Wiggan 9/10 3395 days 62%
Ben McDougal 10/10 3417 days 61%
Maria Schober 5/10 3704 days 21%
Helen Parsons 1/10 3712 days 0%
Elisa Felising 7/10 3712 days 31%
Claudia de Winter 9/10 4024 days 7%
Penny Lee 9/10 4026 days 7%
Jeroen Suijlang 8/10 4026 days 7%
Ludvig Fagerstrom 8/10 4100 days 0%
Marco Schmidt 10/10 4397 days 21%
Christian Schumacher 10/10 4397 days 21%
Jennifer Bramstad 8/10 4417 days 20%
Evelina Johansson 8/10 4417 days 20%
Sofia Anderson 10/10 4417 days 21%
Steve 5/10 4418 days 10%
Janine Kohlgrueler 9/10 4425 days 21%
Fraser Goldsmith 9/10 4442 days 21%
Nigel Leighton 10/10 4496 days 21%
Jonathan Vondette 7/10 4499 days 18%
Andreas and Christine and Nora Busch 10/10 4507 days 21%
lavonc 3/10 4538 days 1%
peterpiper 10/10 4722 days 21%
sandytemp22 10/10 4752 days 21%
Laura vanGool 10/10 4768 days 21%
Barbara Berkhout 7/10 4768 days 18%
Jurgen Joyce 8/10 4775 days 20%
Carole Carter 9/10 4775 days 21%
Sabrina Germany 9/10 4778 days 21%
J Jmal 10/10 4779 days 21%
Malena 10/10 4783 days 21%
Erik 10/10 4785 days 21%
Marion Hassink 8/10 4789 days 20%
Baas 8/10 4792 days 20%
Barbara 10/10 4793 days 21%
Rebecca Richardson 8/10 4794 days 20%
Andrew Powell 7/10 4794 days 18%
Andy Bridgman 8/10 4797 days 20%
Aoife Lillis 7/10 4800 days 18%
Rainer Schnell 8/10 4804 days 20%
Filsack 8/10 4804 days 20%
Hazel 10/10 4805 days 21%
Frank Waskikowski 9/10 4806 days 21%
Andreas Kristiansen 9/10 4806 days 21%
Robert MacLeod-Smith 8/10 4808 days 20%
Chris Marsh 6/10 4809 days 15%
Jessica Lane 7/10 4809 days 18%
Francis Corrigan 7/10 4813 days 18%
Laura Smith 9/10 4825 days 21%
Dean 8/10 4858 days 20%
Berry 10/10 4885 days 21%
Steve 9/10 4888 days 21%
MaggieYChaChi 9/10 4965 days 21%
GenH 9/10 5088 days 21%
Allison Meyoz 9/10 5094 days 21%
G Tulloch 9/10 5112 days 21%
Stephen Hunt 9/10 5114 days 21%
Thomas Klebensberger 10/10 5114 days 21%
Therea 10/10 5117 days 21%
Sean Brownell 7/10 5118 days 18%
Laura Thrower 10/10 5123 days 21%
David Taylor 9/10 5123 days 21%
Stefan Schmitz 8/10 5131 days 20%
Marii Joekalda 8/10 5132 days 20%
Frank & Ruth 6/10 5133 days 15%
Nathalie 10/10 5133 days 21%
Jo Meekley 7/10 5133 days 18%
Margit and Corein Groenevelt 8/10 5135 days 20%
Judith 9/10 5135 days 21%
Ven 8/10 5135 days 20%
Florian 8/10 5139 days 20%
Helen 9/10 5139 days 21%
Juliane Kleiu 10/10 5139 days 21%
Paula Dove 10/10 5139 days 21%
Erin 8/10 5140 days 20%
Walter Buschta 8/10 5140 days 20%
Wouter Moui 6/10 5141 days 15%
K Dahmer 8/10 5142 days 20%
Jonathan Cree 9/10 5142 days 21%
Laura Leigh 10/10 5142 days 21%
Ann-Kathrin Auditor 10/10 5143 days 21%
Katherine Forward 8/10 5143 days 20%
Chris Ashton 10/10 5143 days 21%
Jerry & Floon 7/10 5147 days 18%
Hadar Zevulun 9/10 5148 days 21%
Grumbach 9/10 5152 days 21%
Caroline Sheridan 9/10 5153 days 21%
Chris Darlington 10/10 5157 days 21%
Cheryl 10/10 5167 days 21%
Mark Aarts 9/10 5168 days 21%
Samuel Prechel 8/10 5169 days 20%
Dave and Lin Mungham 10/10 5170 days 21%
Gordon Daniels 8/10 5172 days 20%
Dr Dorthe Bossow 3/10 5173 days 1%
Helen Gilbertson 8/10 5176 days 20%
Doris Neuber 9/10 5176 days 21%
Ashleigh Buckley 8/10 5177 days 20%
PerspirationJournal 10/10 5269 days 21%
alku83 10/10 5269 days 21%
Mary Van 8/10 5330 days 20%
chloe1111 10/10 5453 days 21%
jenniferuk 9/10 5453 days 21%
Peter and Hilda 10/10 5483 days 21%
Einar 9/10 5502 days 21%
Inbar Yizhar Barnea 8/10 5502 days 20%
Tanya 9/10 5507 days 21%
Jana Steve 10/10 5508 days 21%
Yasmin Abrahams 7/10 5516 days 18%
Barbara & Sven 10/10 5516 days 21%
Judith 8/10 5520 days 20%
Henrik Hougs 8/10 5522 days 20%
Chris Glasg 9/10 5522 days 21%
Michael 10/10 5524 days 21%
Gary Ebrig 10/10 5527 days 21%
Mathias 9/10 5529 days 21%
Jamie 9/10 5534 days 21%
David Hobson 8/10 5534 days 20%
Christian 10/10 5534 days 21%
vanijzendoor 8/10 5537 days 20%
Dick Rosman 8/10 5538 days 20%
Frances Hay 8/10 5541 days 20%
Chance McGuire 10/10 5542 days 21%
Kevin and Teresa 8/10 5542 days 20%
Ben Miklozek 9/10 5542 days 21%
Marianne Lovdal 9/10 5542 days 21%
Jessica 5/10 5547 days 10%
S Luis Van Oler 6/10 5547 days 15%
sophiep 8/10 5588 days 20%
katharinatum 9/10 5588 days 21%
koellner 6/10 5602 days 15%
chrish1 9/10 5604 days 21%
Fred Findlay 7/10 5616 days 18%
maleta 9/10 5625 days 21%
Gemma Morris 10/10 5627 days 21%
TomL 10/10 5634 days 21%
Pauline Wan 7/10 5634 days 18%
eowyn2k 7/10 5634 days 18%
Suzanne 9/10 5665 days 21%
terryd 9/10 5726 days 21%
kindel 6/10 5730 days 15%
Emear Donnelly 10/10 5769 days 21%
zoed 7/10 5803 days 18%
steph_m 9/10 5818 days 21%
Charles Lyne 10/10 5818 days 21%
BenM1 7/10 5827 days 18%
KimC 8/10 5836 days 20%
JonK 8/10 5836 days 20%
TschaneK 10/10 5838 days 21%
RogerW 10/10 5840 days 21%
NicolaW 10/10 5840 days 21%
Lisa Duin 8/10 5846 days 20%
Joanna Harrnon 9/10 5847 days 21%
David 8/10 5848 days 20%
johnst 10/10 5848 days 21%
Adi 10/10 5848 days 21%
Sally477 9/10 5849 days 21%
Becca1 9/10 5850 days 21%
Jelle 8/10 5851 days 20%
Denys 8/10 5852 days 20%
Ronny 9/10 5852 days 21%
Viktoria Stoffel 10/10 5855 days 21%
Jon Li 9/10 5860 days 21%
Han Disveld 9/10 5860 days 21%
BevanLisa 10/10 5865 days 21%
SabineGermany 10/10 5866 days 21%
StefanGermany1 9/10 5866 days 21%
AnjaC 7/10 5866 days 18%
AnjaChrist 7/10 5866 days 18%
Torsten 9/10 5867 days 21%
MarcoJ 8/10 5868 days 20%
James O'Neil 10/10 5868 days 21%
Barry Smith 10/10 5868 days 21%
Siemens 8/10 5868 days 20%
AlexH 10/10 5869 days 21%
AnnickH 6/10 5870 days 15%
Rene 8/10 5871 days 20%
Dorothee 8/10 5871 days 20%
Rob 7/10 5871 days 18%
Mike 6/10 5872 days 15%
TammyH 9/10 5874 days 21%
Lynn White 7/10 5874 days 18%
Mette 8/10 5878 days 20%
Axel 5/10 5878 days 10%
amyd 8/10 5879 days 20%
Susan 9/10 5880 days 21%
lannie 5/10 5881 days 10%
XaviG 9/10 5882 days 21%
ChenM 8/10 5882 days 20%
Steven 9/10 5882 days 21%
CarleyJ 8/10 5882 days 20%
JesusB 7/10 5882 days 18%
GingerPrince 9/10 5882 days 21%
Steve 10/10 5882 days 21%
Claudia 9/10 5884 days 21%
Pascal 8/10 5884 days 20%
Karen 9/10 5887 days 21%
RandiL 7/10 5890 days 18%
IreneF 9/10 5891 days 21%
Rachel 8/10 5897 days 20%
Adi 10/10 5897 days 21%
Claire 8/10 5897 days 20%
Philippa 9/10 5898 days 21%
Conway 9/10 5898 days 21%
orianne 10/10 5905 days 21%
Caroline 7/10 5905 days 18%
Eike 9/10 5912 days 21%
Benni 7/10 5914 days 18%
John 6/10 5917 days 15%
Dan 9/10 5921 days 21%
Sally 9/10 5921 days 21%
Rosa 4/10 5921 days 6%
Sascha 7/10 5922 days 18%
Dassel 8/10 5922 days 20%
Eric 3/10 5923 days 1%
Charlie 9/10 5928 days 21%
tommfuller 7/10 5932 days 18%
Anouk 9/10 5960 days 21%
MissTraveller2009 10/10 5969 days 21%
David 9/10 5973 days 21%
Laura 9/10 5973 days 21%
Adam 8/10 5978 days 20%
mike brett 7/10 5982 days 18%
georgepearse 9/10 6019 days 21%
Aoife 8/10 6022 days 20%
Davina 8/10 6023 days 20%
Kath 10/10 6025 days 21%
Kate 8/10 6034 days 20%
Brenda 8/10 6034 days 20%
Amy 8/10 6043 days 20%
Katie 10/10 6043 days 21%
Christoffer 10/10 6045 days 21%
Rebecca 9/10 6045 days 21%
Suyin 10/10 6045 days 21%
Sarah 6/10 6054 days 15%
Michaela 9/10 6058 days 21%
Christopher 6/10 6058 days 15%
James 8/10 6058 days 20%
Sam Prior 8/10 6063 days 20%
jillian 8/10 6067 days 20%
George Burgas 9/10 6072 days 21%
stain weedman 6/10 6078 days 15%
Sharon Curly 9/10 6080 days 21%
Peddy 7/10 6084 days 18%
Tim 5/10 6100 days 10%
Thomas Fillary 9/10 6116 days 21%
Sjoerd 8/10 6122 days 20%
Gemma Harling 9/10 6122 days 21%
Charlie Bond 9/10 6129 days 21%
Florencia Cortese 10/10 6190 days 21%
Meike Biel 7/10 6198 days 18%
Helen 9/10 6198 days 21%
Ellie 9/10 6210 days 21%
Daniel 7/10 6228 days 18%
Omer Harron 9/10 6228 days 21%
Yayami Kimura 10/10 6231 days 21%
Kieran Concarr 9/10 6231 days 21%
Christian 8/10 6235 days 20%
Kathrin 9/10 6239 days 21%
Andreas Brett 8/10 6241 days 20%
Kristine Clemmensen Rotne 7/10 6241 days 18%
helga 6/10 6241 days 15%
Emily Houston 10/10 6245 days 21%
Hannah Holmes 8/10 6248 days 20%
Lisa Tame 9/10 6249 days 21%
Kelly 9/10 6252 days 21%
Stephanie 10/10 6260 days 21%
Sayaka 7/10 6260 days 18%
Marc Hertogs 8/10 6264 days 20%
Tanya Berthoud 9/10 6266 days 21%
Van Hoof 8/10 6288 days 20%
Berger 8/10 6295 days 20%
Travis Brennan 9/10 6308 days 21%
Alexis 10/10 6322 days 21%
Martine Arsac 5/10 6330 days 10%
Frida 8/10 6332 days 20%
Ben 10/10 6333 days 21%
Wendy Williams 8/10 6340 days 20%
Charlie Wilson 10/10 6415 days 21%
Ian Coldrake 8/10 6415 days 20%
Jill Bourke 10/10 6420 days 21%
Andy Chapman 8/10 6450 days 20%
Shelley 10/10 6555 days 21%
Will 9/10 6564 days 21%
Michael 9/10 6566 days 21%
Sue 8/10 6566 days 20%
Stefan 8/10 6569 days 20%
Jenny 8/10 6572 days 20%
Kate 8/10 6574 days 20%
Paul Yacoumis 7/10 6576 days 18%
Kathryn 9/10 6581 days 21%
Celia 9/10 6583 days 21%
Annelte 4/10 6584 days 6%
IdanNakash 8/10 6584 days 20%
Martin Christina 9/10 6584 days 21%
Chris 8/10 6585 days 20%
Janneke 8/10 6585 days 20%
Sue Robertson 10/10 6587 days 21%
Fenke 7/10 6590 days 18%
Bas 7/10 6590 days 18%
Daniel 9/10 6592 days 21%
Susan 6/10 6598 days 15%
ErikVanDam 9/10 6604 days 21%
MariaNorman 9/10 6604 days 21%
MarcHarris 8/10 6604 days 20%
Helena 10/10 6604 days 21%
Sarah 10/10 6613 days 21%
beesom 8/10 6614 days 20%
Peter 5/10 6618 days 10%
Sonja 7/10 6625 days 18%
Leah 8/10 6626 days 20%
Sarah 10/10 6646 days 21%

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 Franz Josef Glacier Guides experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.66% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 61 days. However the Franz Josef Glacier Guides 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 Franz Josef Glacier Guides experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
… …
197 -3.61%
198 -3.63%
199 -3.65%
200 -3.66%
201 -3.68%
202 -3.70%
203 -3.72%
… …

Balancing Adjustment

2.60% 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

84%

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.