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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 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.

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

85.12%

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 2899 days 100%
Jessica Freeland 10/10 2960 days 96%
Nanna Overbeck 10/10 2972 days 95%
Joe Rogers 9/10 3253 days 75%
Nicola Wiggan 9/10 3322 days 71%
Ben McDougal 10/10 3344 days 70%
Maria Schober 5/10 3631 days 38%
Helen Parsons 1/10 3639 days 20%
Elisa Felising 7/10 3639 days 46%
Claudia de Winter 9/10 3951 days 28%
Penny Lee 9/10 3953 days 28%
Jeroen Suijlang 8/10 3953 days 28%
Ludvig Fagerstrom 8/10 4027 days 23%
Marco Schmidt 10/10 4324 days 3%
Christian Schumacher 10/10 4324 days 3%
Jennifer Bramstad 8/10 4344 days 2%
Evelina Johansson 8/10 4344 days 2%
Sofia Anderson 10/10 4344 days 2%
Steve 5/10 4345 days 1%
Janine Kohlgrueler 9/10 4352 days 1%
Fraser Goldsmith 9/10 4369 days 0%
Nigel Leighton 10/10 4423 days 34%
Jonathan Vondette 7/10 4426 days 32%
Andreas and Christine and Nora Busch 10/10 4434 days 34%
lavonc 3/10 4465 days 18%
peterpiper 10/10 4649 days 34%
sandytemp22 10/10 4679 days 34%
Laura vanGool 10/10 4695 days 34%
Barbara Berkhout 7/10 4695 days 32%
Jurgen Joyce 8/10 4702 days 33%
Carole Carter 9/10 4702 days 34%
Sabrina Germany 9/10 4705 days 34%
J Jmal 10/10 4706 days 34%
Malena 10/10 4710 days 34%
Erik 10/10 4712 days 34%
Marion Hassink 8/10 4716 days 33%
Baas 8/10 4719 days 33%
Barbara 10/10 4720 days 34%
Rebecca Richardson 8/10 4721 days 33%
Andrew Powell 7/10 4721 days 32%
Andy Bridgman 8/10 4724 days 33%
Aoife Lillis 7/10 4727 days 32%
Rainer Schnell 8/10 4731 days 33%
Filsack 8/10 4731 days 33%
Hazel 10/10 4732 days 34%
Frank Waskikowski 9/10 4733 days 34%
Andreas Kristiansen 9/10 4733 days 34%
Robert MacLeod-Smith 8/10 4735 days 33%
Chris Marsh 6/10 4736 days 29%
Jessica Lane 7/10 4736 days 32%
Francis Corrigan 7/10 4740 days 32%
Laura Smith 9/10 4752 days 34%
Dean 8/10 4785 days 33%
Berry 10/10 4812 days 34%
Steve 9/10 4815 days 34%
MaggieYChaChi 9/10 4892 days 34%
GenH 9/10 5015 days 34%
Allison Meyoz 9/10 5021 days 34%
G Tulloch 9/10 5039 days 34%
Stephen Hunt 9/10 5041 days 34%
Thomas Klebensberger 10/10 5041 days 34%
Therea 10/10 5044 days 34%
Sean Brownell 7/10 5045 days 32%
Laura Thrower 10/10 5050 days 34%
David Taylor 9/10 5050 days 34%
Stefan Schmitz 8/10 5058 days 33%
Marii Joekalda 8/10 5059 days 33%
Frank & Ruth 6/10 5060 days 29%
Nathalie 10/10 5060 days 34%
Jo Meekley 7/10 5060 days 32%
Margit and Corein Groenevelt 8/10 5062 days 33%
Judith 9/10 5062 days 34%
Ven 8/10 5062 days 33%
Florian 8/10 5066 days 33%
Helen 9/10 5066 days 34%
Juliane Kleiu 10/10 5066 days 34%
Paula Dove 10/10 5066 days 34%
Erin 8/10 5067 days 33%
Walter Buschta 8/10 5067 days 33%
Wouter Moui 6/10 5068 days 29%
K Dahmer 8/10 5069 days 33%
Jonathan Cree 9/10 5069 days 34%
Laura Leigh 10/10 5069 days 34%
Ann-Kathrin Auditor 10/10 5070 days 34%
Katherine Forward 8/10 5070 days 33%
Chris Ashton 10/10 5070 days 34%
Jerry & Floon 7/10 5074 days 32%
Hadar Zevulun 9/10 5075 days 34%
Grumbach 9/10 5079 days 34%
Caroline Sheridan 9/10 5080 days 34%
Chris Darlington 10/10 5084 days 34%
Cheryl 10/10 5094 days 34%
Mark Aarts 9/10 5095 days 34%
Samuel Prechel 8/10 5096 days 33%
Dave and Lin Mungham 10/10 5097 days 34%
Gordon Daniels 8/10 5099 days 33%
Dr Dorthe Bossow 3/10 5100 days 18%
Helen Gilbertson 8/10 5103 days 33%
Doris Neuber 9/10 5103 days 34%
Ashleigh Buckley 8/10 5104 days 33%
PerspirationJournal 10/10 5196 days 34%
alku83 10/10 5196 days 34%
Mary Van 8/10 5257 days 33%
chloe1111 10/10 5380 days 34%
jenniferuk 9/10 5380 days 34%
Peter and Hilda 10/10 5410 days 34%
Einar 9/10 5429 days 34%
Inbar Yizhar Barnea 8/10 5429 days 33%
Tanya 9/10 5434 days 34%
Jana Steve 10/10 5435 days 34%
Yasmin Abrahams 7/10 5443 days 32%
Barbara & Sven 10/10 5443 days 34%
Judith 8/10 5447 days 33%
Henrik Hougs 8/10 5449 days 33%
Chris Glasg 9/10 5449 days 34%
Michael 10/10 5451 days 34%
Gary Ebrig 10/10 5454 days 34%
Mathias 9/10 5456 days 34%
Jamie 9/10 5461 days 34%
David Hobson 8/10 5461 days 33%
Christian 10/10 5461 days 34%
vanijzendoor 8/10 5464 days 33%
Dick Rosman 8/10 5465 days 33%
Frances Hay 8/10 5468 days 33%
Chance McGuire 10/10 5469 days 34%
Kevin and Teresa 8/10 5469 days 33%
Ben Miklozek 9/10 5469 days 34%
Marianne Lovdal 9/10 5469 days 34%
Jessica 5/10 5474 days 26%
S Luis Van Oler 6/10 5474 days 29%
sophiep 8/10 5515 days 33%
katharinatum 9/10 5515 days 34%
koellner 6/10 5529 days 29%
chrish1 9/10 5531 days 34%
Fred Findlay 7/10 5543 days 32%
maleta 9/10 5552 days 34%
Gemma Morris 10/10 5554 days 34%
TomL 10/10 5561 days 34%
Pauline Wan 7/10 5561 days 32%
eowyn2k 7/10 5561 days 32%
Suzanne 9/10 5592 days 34%
terryd 9/10 5653 days 34%
kindel 6/10 5657 days 29%
Emear Donnelly 10/10 5696 days 34%
zoed 7/10 5730 days 32%
steph_m 9/10 5745 days 34%
Charles Lyne 10/10 5745 days 34%
BenM1 7/10 5754 days 32%
KimC 8/10 5763 days 33%
JonK 8/10 5763 days 33%
TschaneK 10/10 5765 days 34%
RogerW 10/10 5767 days 34%
NicolaW 10/10 5767 days 34%
Lisa Duin 8/10 5773 days 33%
Joanna Harrnon 9/10 5774 days 34%
David 8/10 5775 days 33%
johnst 10/10 5775 days 34%
Adi 10/10 5776 days 34%
Sally477 9/10 5776 days 34%
Becca1 9/10 5777 days 34%
Jelle 8/10 5778 days 33%
Denys 8/10 5779 days 33%
Ronny 9/10 5779 days 34%
Viktoria Stoffel 10/10 5782 days 34%
Jon Li 9/10 5787 days 34%
Han Disveld 9/10 5787 days 34%
BevanLisa 10/10 5792 days 34%
SabineGermany 10/10 5793 days 34%
StefanGermany1 9/10 5793 days 34%
AnjaC 7/10 5793 days 32%
AnjaChrist 7/10 5793 days 32%
Torsten 9/10 5795 days 34%
MarcoJ 8/10 5795 days 33%
James O'Neil 10/10 5795 days 34%
Barry Smith 10/10 5795 days 34%
Siemens 8/10 5795 days 33%
AlexH 10/10 5796 days 34%
AnnickH 6/10 5797 days 29%
Rene 8/10 5799 days 33%
Dorothee 8/10 5799 days 33%
Rob 7/10 5799 days 32%
Mike 6/10 5799 days 29%
TammyH 9/10 5801 days 34%
Lynn White 7/10 5802 days 32%
Mette 8/10 5806 days 33%
Axel 5/10 5806 days 26%
amyd 8/10 5806 days 33%
Susan 9/10 5808 days 34%
lannie 5/10 5809 days 26%
XaviG 9/10 5809 days 34%
ChenM 8/10 5809 days 33%
Steven 9/10 5809 days 34%
CarleyJ 8/10 5809 days 33%
JesusB 7/10 5809 days 32%
GingerPrince 9/10 5809 days 34%
Steve 10/10 5809 days 34%
Claudia 9/10 5812 days 34%
Pascal 8/10 5812 days 33%
Karen 9/10 5814 days 34%
RandiL 7/10 5817 days 32%
IreneF 9/10 5818 days 34%
Rachel 8/10 5825 days 33%
Adi 10/10 5825 days 34%
Claire 8/10 5825 days 33%
Philippa 9/10 5826 days 34%
Conway 9/10 5826 days 34%
orianne 10/10 5832 days 34%
Caroline 7/10 5833 days 32%
Eike 9/10 5840 days 34%
Benni 7/10 5841 days 32%
John 6/10 5845 days 29%
Dan 9/10 5848 days 34%
Sally 9/10 5848 days 34%
Rosa 4/10 5849 days 22%
Sascha 7/10 5849 days 32%
Dassel 8/10 5849 days 33%
Eric 3/10 5851 days 18%
Charlie 9/10 5856 days 34%
tommfuller 7/10 5860 days 32%
Anouk 9/10 5888 days 34%
MissTraveller2009 10/10 5896 days 34%
David 9/10 5901 days 34%
Laura 9/10 5901 days 34%
Adam 8/10 5906 days 33%
mike brett 7/10 5909 days 32%
georgepearse 9/10 5947 days 34%
Aoife 8/10 5950 days 33%
Davina 8/10 5951 days 33%
Kath 10/10 5953 days 34%
Kate 8/10 5962 days 33%
Brenda 8/10 5962 days 33%
Amy 8/10 5971 days 33%
Katie 10/10 5971 days 34%
Christoffer 10/10 5973 days 34%
Rebecca 9/10 5973 days 34%
Suyin 10/10 5973 days 34%
Sarah 6/10 5982 days 29%
Michaela 9/10 5986 days 34%
Christopher 6/10 5986 days 29%
James 8/10 5986 days 33%
Sam Prior 8/10 5991 days 33%
jillian 8/10 5995 days 33%
George Burgas 9/10 6000 days 34%
stain weedman 6/10 6006 days 29%
Sharon Curly 9/10 6008 days 34%
Peddy 7/10 6012 days 32%
Tim 5/10 6027 days 26%
Thomas Fillary 9/10 6044 days 34%
Sjoerd 8/10 6050 days 33%
Gemma Harling 9/10 6050 days 34%
Charlie Bond 9/10 6057 days 34%
Florencia Cortese 10/10 6117 days 34%
Meike Biel 7/10 6125 days 32%
Helen 9/10 6125 days 34%
Ellie 9/10 6138 days 34%
Daniel 7/10 6155 days 32%
Omer Harron 9/10 6155 days 34%
Yayami Kimura 10/10 6158 days 34%
Kieran Concarr 9/10 6158 days 34%
Christian 8/10 6162 days 33%
Kathrin 9/10 6166 days 34%
Andreas Brett 8/10 6168 days 33%
Kristine Clemmensen Rotne 7/10 6168 days 32%
helga 6/10 6169 days 29%
Emily Houston 10/10 6172 days 34%
Hannah Holmes 8/10 6175 days 33%
Lisa Tame 9/10 6176 days 34%
Kelly 9/10 6179 days 34%
Stephanie 10/10 6187 days 34%
Sayaka 7/10 6187 days 32%
Marc Hertogs 8/10 6191 days 33%
Tanya Berthoud 9/10 6193 days 34%
Van Hoof 8/10 6215 days 33%
Berger 8/10 6222 days 33%
Travis Brennan 9/10 6235 days 34%
Alexis 10/10 6249 days 34%
Martine Arsac 5/10 6257 days 26%
Frida 8/10 6259 days 33%
Ben 10/10 6260 days 34%
Wendy Williams 8/10 6267 days 33%
Charlie Wilson 10/10 6342 days 34%
Ian Coldrake 8/10 6342 days 33%
Jill Bourke 10/10 6347 days 34%
Andy Chapman 8/10 6377 days 33%
Shelley 10/10 6482 days 34%
Will 9/10 6491 days 34%
Michael 9/10 6493 days 34%
Sue 8/10 6493 days 33%
Stefan 8/10 6496 days 33%
Jenny 8/10 6499 days 33%
Kate 8/10 6501 days 33%
Paul Yacoumis 7/10 6503 days 32%
Kathryn 9/10 6508 days 34%
Celia 9/10 6510 days 34%
Annelte 4/10 6511 days 22%
IdanNakash 8/10 6511 days 33%
Martin Christina 9/10 6511 days 34%
Chris 8/10 6512 days 33%
Janneke 8/10 6512 days 33%
Sue Robertson 10/10 6514 days 34%
Fenke 7/10 6517 days 32%
Bas 7/10 6517 days 32%
Daniel 9/10 6519 days 34%
Susan 6/10 6525 days 29%
ErikVanDam 9/10 6531 days 34%
MariaNorman 9/10 6531 days 34%
MarcHarris 8/10 6531 days 33%
Helena 10/10 6531 days 34%
Sarah 10/10 6540 days 34%
beesom 8/10 6541 days 33%
Peter 5/10 6545 days 26%
Sonja 7/10 6552 days 32%
Leah 8/10 6553 days 33%
Sarah 10/10 6573 days 34%

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

-4.11% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 47 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 -4.05%
198 -4.07%
199 -4.09%
200 -4.11%
201 -4.13%
202 -4.15%
203 -4.17%
… …

Balancing Adjustment

2.73% 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.