Ranking Score Explained

G'day, 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

85.14%

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 2917 days 100%
Jessica Freeland 10/10 2978 days 96%
Nanna Overbeck 10/10 2990 days 95%
Joe Rogers 9/10 3271 days 75%
Nicola Wiggan 9/10 3340 days 70%
Ben McDougal 10/10 3362 days 69%
Maria Schober 5/10 3649 days 38%
Helen Parsons 1/10 3657 days 20%
Elisa Felising 7/10 3657 days 46%
Claudia de Winter 9/10 3969 days 27%
Penny Lee 9/10 3971 days 27%
Jeroen Suijlang 8/10 3971 days 27%
Ludvig Fagerstrom 8/10 4045 days 22%
Marco Schmidt 10/10 4342 days 2%
Christian Schumacher 10/10 4342 days 2%
Jennifer Bramstad 8/10 4362 days 1%
Evelina Johansson 8/10 4362 days 1%
Sofia Anderson 10/10 4362 days 1%
Steve 5/10 4363 days 0%
Janine Kohlgrueler 9/10 4370 days 0%
Fraser Goldsmith 9/10 4387 days 34%
Nigel Leighton 10/10 4441 days 34%
Jonathan Vondette 7/10 4444 days 32%
Andreas and Christine and Nora Busch 10/10 4452 days 34%
lavonc 3/10 4483 days 18%
peterpiper 10/10 4667 days 34%
sandytemp22 10/10 4697 days 34%
Laura vanGool 10/10 4713 days 34%
Barbara Berkhout 7/10 4713 days 32%
Jurgen Joyce 8/10 4720 days 34%
Carole Carter 9/10 4720 days 34%
Sabrina Germany 9/10 4723 days 34%
J Jmal 10/10 4724 days 34%
Malena 10/10 4728 days 34%
Erik 10/10 4730 days 34%
Marion Hassink 8/10 4734 days 34%
Baas 8/10 4737 days 34%
Barbara 10/10 4738 days 34%
Rebecca Richardson 8/10 4739 days 34%
Andrew Powell 7/10 4739 days 32%
Andy Bridgman 8/10 4742 days 34%
Aoife Lillis 7/10 4745 days 32%
Rainer Schnell 8/10 4749 days 34%
Filsack 8/10 4749 days 34%
Hazel 10/10 4750 days 34%
Frank Waskikowski 9/10 4751 days 34%
Andreas Kristiansen 9/10 4751 days 34%
Robert MacLeod-Smith 8/10 4753 days 34%
Chris Marsh 6/10 4754 days 30%
Jessica Lane 7/10 4754 days 32%
Francis Corrigan 7/10 4758 days 32%
Laura Smith 9/10 4770 days 34%
Dean 8/10 4803 days 34%
Berry 10/10 4830 days 34%
Steve 9/10 4833 days 34%
MaggieYChaChi 9/10 4910 days 34%
GenH 9/10 5033 days 34%
Allison Meyoz 9/10 5039 days 34%
G Tulloch 9/10 5057 days 34%
Stephen Hunt 9/10 5059 days 34%
Thomas Klebensberger 10/10 5059 days 34%
Therea 10/10 5062 days 34%
Sean Brownell 7/10 5063 days 32%
Laura Thrower 10/10 5068 days 34%
David Taylor 9/10 5068 days 34%
Stefan Schmitz 8/10 5076 days 34%
Marii Joekalda 8/10 5077 days 34%
Frank & Ruth 6/10 5078 days 30%
Nathalie 10/10 5078 days 34%
Jo Meekley 7/10 5078 days 32%
Margit and Corein Groenevelt 8/10 5080 days 34%
Judith 9/10 5080 days 34%
Ven 8/10 5080 days 34%
Florian 8/10 5084 days 34%
Helen 9/10 5084 days 34%
Juliane Kleiu 10/10 5084 days 34%
Paula Dove 10/10 5084 days 34%
Erin 8/10 5085 days 34%
Walter Buschta 8/10 5085 days 34%
Wouter Moui 6/10 5086 days 30%
K Dahmer 8/10 5087 days 34%
Jonathan Cree 9/10 5087 days 34%
Laura Leigh 10/10 5087 days 34%
Ann-Kathrin Auditor 10/10 5088 days 34%
Katherine Forward 8/10 5088 days 34%
Chris Ashton 10/10 5088 days 34%
Jerry & Floon 7/10 5092 days 32%
Hadar Zevulun 9/10 5093 days 34%
Grumbach 9/10 5097 days 34%
Caroline Sheridan 9/10 5098 days 34%
Chris Darlington 10/10 5102 days 34%
Cheryl 10/10 5112 days 34%
Mark Aarts 9/10 5113 days 34%
Samuel Prechel 8/10 5114 days 34%
Dave and Lin Mungham 10/10 5115 days 34%
Gordon Daniels 8/10 5117 days 34%
Dr Dorthe Bossow 3/10 5118 days 18%
Helen Gilbertson 8/10 5121 days 34%
Doris Neuber 9/10 5121 days 34%
Ashleigh Buckley 8/10 5122 days 34%
PerspirationJournal 10/10 5214 days 34%
alku83 10/10 5214 days 34%
Mary Van 8/10 5275 days 34%
chloe1111 10/10 5398 days 34%
jenniferuk 9/10 5398 days 34%
Peter and Hilda 10/10 5428 days 34%
Einar 9/10 5447 days 34%
Inbar Yizhar Barnea 8/10 5447 days 34%
Tanya 9/10 5452 days 34%
Jana Steve 10/10 5453 days 34%
Yasmin Abrahams 7/10 5461 days 32%
Barbara & Sven 10/10 5461 days 34%
Judith 8/10 5465 days 34%
Henrik Hougs 8/10 5467 days 34%
Chris Glasg 9/10 5467 days 34%
Michael 10/10 5469 days 34%
Gary Ebrig 10/10 5472 days 34%
Mathias 9/10 5474 days 34%
Jamie 9/10 5479 days 34%
David Hobson 8/10 5479 days 34%
Christian 10/10 5479 days 34%
vanijzendoor 8/10 5482 days 34%
Dick Rosman 8/10 5483 days 34%
Frances Hay 8/10 5486 days 34%
Chance McGuire 10/10 5487 days 34%
Kevin and Teresa 8/10 5487 days 34%
Ben Miklozek 9/10 5487 days 34%
Marianne Lovdal 9/10 5487 days 34%
Jessica 5/10 5492 days 26%
S Luis Van Oler 6/10 5492 days 30%
sophiep 8/10 5533 days 34%
katharinatum 9/10 5533 days 34%
koellner 6/10 5547 days 30%
chrish1 9/10 5549 days 34%
Fred Findlay 7/10 5561 days 32%
maleta 9/10 5570 days 34%
Gemma Morris 10/10 5572 days 34%
TomL 10/10 5579 days 34%
Pauline Wan 7/10 5579 days 32%
eowyn2k 7/10 5579 days 32%
Suzanne 9/10 5610 days 34%
terryd 9/10 5671 days 34%
kindel 6/10 5675 days 30%
Emear Donnelly 10/10 5714 days 34%
zoed 7/10 5748 days 32%
steph_m 9/10 5763 days 34%
Charles Lyne 10/10 5763 days 34%
BenM1 7/10 5772 days 32%
KimC 8/10 5781 days 34%
JonK 8/10 5781 days 34%
TschaneK 10/10 5783 days 34%
RogerW 10/10 5785 days 34%
NicolaW 10/10 5785 days 34%
Lisa Duin 8/10 5791 days 34%
Joanna Harrnon 9/10 5792 days 34%
David 8/10 5793 days 34%
johnst 10/10 5793 days 34%
Adi 10/10 5793 days 34%
Sally477 9/10 5794 days 34%
Becca1 9/10 5795 days 34%
Jelle 8/10 5796 days 34%
Denys 8/10 5797 days 34%
Ronny 9/10 5797 days 34%
Viktoria Stoffel 10/10 5800 days 34%
Jon Li 9/10 5805 days 34%
Han Disveld 9/10 5805 days 34%
BevanLisa 10/10 5810 days 34%
SabineGermany 10/10 5811 days 34%
StefanGermany1 9/10 5811 days 34%
AnjaC 7/10 5811 days 32%
AnjaChrist 7/10 5811 days 32%
Torsten 9/10 5812 days 34%
MarcoJ 8/10 5813 days 34%
James O'Neil 10/10 5813 days 34%
Barry Smith 10/10 5813 days 34%
Siemens 8/10 5813 days 34%
AlexH 10/10 5814 days 34%
AnnickH 6/10 5815 days 30%
Rene 8/10 5816 days 34%
Dorothee 8/10 5816 days 34%
Rob 7/10 5816 days 32%
Mike 6/10 5817 days 30%
TammyH 9/10 5819 days 34%
Lynn White 7/10 5819 days 32%
Mette 8/10 5823 days 34%
Axel 5/10 5823 days 26%
amyd 8/10 5824 days 34%
Susan 9/10 5825 days 34%
lannie 5/10 5826 days 26%
XaviG 9/10 5827 days 34%
ChenM 8/10 5827 days 34%
Steven 9/10 5827 days 34%
CarleyJ 8/10 5827 days 34%
JesusB 7/10 5827 days 32%
GingerPrince 9/10 5827 days 34%
Steve 10/10 5827 days 34%
Claudia 9/10 5829 days 34%
Pascal 8/10 5829 days 34%
Karen 9/10 5832 days 34%
RandiL 7/10 5835 days 32%
IreneF 9/10 5836 days 34%
Rachel 8/10 5842 days 34%
Adi 10/10 5842 days 34%
Claire 8/10 5842 days 34%
Philippa 9/10 5843 days 34%
Conway 9/10 5843 days 34%
orianne 10/10 5850 days 34%
Caroline 7/10 5850 days 32%
Eike 9/10 5857 days 34%
Benni 7/10 5859 days 32%
John 6/10 5862 days 30%
Dan 9/10 5866 days 34%
Sally 9/10 5866 days 34%
Rosa 4/10 5866 days 22%
Sascha 7/10 5867 days 32%
Dassel 8/10 5867 days 34%
Eric 3/10 5868 days 18%
Charlie 9/10 5873 days 34%
tommfuller 7/10 5877 days 32%
Anouk 9/10 5905 days 34%
MissTraveller2009 10/10 5914 days 34%
David 9/10 5919 days 34%
Laura 9/10 5919 days 34%
Adam 8/10 5923 days 34%
mike brett 7/10 5927 days 32%
georgepearse 9/10 5964 days 34%
Aoife 8/10 5967 days 34%
Davina 8/10 5968 days 34%
Kath 10/10 5970 days 34%
Kate 8/10 5979 days 34%
Brenda 8/10 5979 days 34%
Amy 8/10 5988 days 34%
Katie 10/10 5988 days 34%
Christoffer 10/10 5991 days 34%
Rebecca 9/10 5991 days 34%
Suyin 10/10 5991 days 34%
Sarah 6/10 5999 days 30%
Michaela 9/10 6003 days 34%
Christopher 6/10 6003 days 30%
James 8/10 6003 days 34%
Sam Prior 8/10 6008 days 34%
jillian 8/10 6012 days 34%
George Burgas 9/10 6017 days 34%
stain weedman 6/10 6023 days 30%
Sharon Curly 9/10 6025 days 34%
Peddy 7/10 6029 days 32%
Tim 5/10 6045 days 26%
Thomas Fillary 9/10 6061 days 34%
Sjoerd 8/10 6067 days 34%
Gemma Harling 9/10 6067 days 34%
Charlie Bond 9/10 6074 days 34%
Florencia Cortese 10/10 6135 days 34%
Meike Biel 7/10 6143 days 32%
Helen 9/10 6143 days 34%
Ellie 9/10 6155 days 34%
Daniel 7/10 6173 days 32%
Omer Harron 9/10 6173 days 34%
Yayami Kimura 10/10 6176 days 34%
Kieran Concarr 9/10 6176 days 34%
Christian 8/10 6180 days 34%
Kathrin 9/10 6184 days 34%
Andreas Brett 8/10 6186 days 34%
Kristine Clemmensen Rotne 7/10 6186 days 32%
helga 6/10 6187 days 30%
Emily Houston 10/10 6190 days 34%
Hannah Holmes 8/10 6193 days 34%
Lisa Tame 9/10 6194 days 34%
Kelly 9/10 6197 days 34%
Stephanie 10/10 6205 days 34%
Sayaka 7/10 6205 days 32%
Marc Hertogs 8/10 6209 days 34%
Tanya Berthoud 9/10 6211 days 34%
Van Hoof 8/10 6233 days 34%
Berger 8/10 6240 days 34%
Travis Brennan 9/10 6253 days 34%
Alexis 10/10 6267 days 34%
Martine Arsac 5/10 6275 days 26%
Frida 8/10 6277 days 34%
Ben 10/10 6278 days 34%
Wendy Williams 8/10 6285 days 34%
Charlie Wilson 10/10 6360 days 34%
Ian Coldrake 8/10 6360 days 34%
Jill Bourke 10/10 6365 days 34%
Andy Chapman 8/10 6395 days 34%
Shelley 10/10 6500 days 34%
Will 9/10 6509 days 34%
Michael 9/10 6511 days 34%
Sue 8/10 6511 days 34%
Stefan 8/10 6514 days 34%
Jenny 8/10 6517 days 34%
Kate 8/10 6519 days 34%
Paul Yacoumis 7/10 6521 days 32%
Kathryn 9/10 6526 days 34%
Celia 9/10 6528 days 34%
Annelte 4/10 6529 days 22%
IdanNakash 8/10 6529 days 34%
Martin Christina 9/10 6529 days 34%
Chris 8/10 6530 days 34%
Janneke 8/10 6530 days 34%
Sue Robertson 10/10 6532 days 34%
Fenke 7/10 6535 days 32%
Bas 7/10 6535 days 32%
Daniel 9/10 6537 days 34%
Susan 6/10 6543 days 30%
ErikVanDam 9/10 6549 days 34%
MariaNorman 9/10 6549 days 34%
MarcHarris 8/10 6549 days 34%
Helena 10/10 6549 days 34%
Sarah 10/10 6558 days 34%
beesom 8/10 6559 days 34%
Peter 5/10 6563 days 26%
Sonja 7/10 6570 days 32%
Leah 8/10 6571 days 34%
Sarah 10/10 6591 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

-4.15% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 51 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 -4.09%
198 -4.11%
199 -4.13%
200 -4.15%
201 -4.18%
202 -4.20%
203 -4.22%

Balancing Adjustment

2.74% 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.