Ranking Score Explained

Hi there, 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.

Nick Morrison's avatar

Nick Morrison

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

84.85%

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 1705 days 100%
Jessica Freeland 10/10 1766 days 97%
Nanna Overbeck 10/10 1778 days 96%
Joe Rogers 9/10 2059 days 82%
Nicola Wiggan 9/10 2128 days 78%
Ben McDougal 10/10 2150 days 77%
Maria Schober 5/10 2437 days 50%
Helen Parsons 1/10 2445 days 44%
Elisa Felising 7/10 2445 days 56%
Claudia de Winter 9/10 2757 days 45%
Penny Lee 9/10 2759 days 45%
Jeroen Suijlang 8/10 2759 days 43%
Ludvig Fagerstrom 8/10 2833 days 39%
Marco Schmidt 10/10 3130 days 26%
Christian Schumacher 10/10 3130 days 26%
Jennifer Bramstad 8/10 3150 days 23%
Evelina Johansson 8/10 3150 days 23%
Sofia Anderson 10/10 3150 days 25%
Steve 5/10 3151 days 20%
Janine Kohlgrueler 9/10 3158 days 24%
Fraser Goldsmith 9/10 3175 days 23%
Nigel Leighton 10/10 3229 days 20%
Jonathan Vondette 7/10 3232 days 18%
Andreas and Christine and Nora Busch 10/10 3240 days 20%
lavonc 3/10 3271 days 14%
peterpiper 10/10 3455 days 9%
sandytemp22 10/10 3485 days 7%
Laura vanGool 10/10 3501 days 6%
Barbara Berkhout 7/10 3501 days 6%
Jurgen Joyce 8/10 3508 days 6%
Carole Carter 9/10 3508 days 6%
Sabrina Germany 9/10 3511 days 6%
J Jmal 10/10 3512 days 6%
Malena 10/10 3516 days 5%
Erik 10/10 3518 days 5%
Marion Hassink 8/10 3522 days 5%
Baas 8/10 3525 days 5%
Barbara 10/10 3526 days 5%
Rebecca Richardson 8/10 3527 days 5%
Andrew Powell 7/10 3527 days 4%
Andy Bridgman 8/10 3530 days 4%
Aoife Lillis 7/10 3533 days 4%
Rainer Schnell 8/10 3537 days 4%
Filsack 8/10 3537 days 4%
Hazel 10/10 3538 days 4%
Frank Waskikowski 9/10 3539 days 4%
Andreas Kristiansen 9/10 3539 days 4%
Robert MacLeod-Smith 8/10 3541 days 4%
Chris Marsh 6/10 3542 days 3%
Jessica Lane 7/10 3542 days 4%
Francis Corrigan 7/10 3546 days 3%
Laura Smith 9/10 3558 days 3%
Dean 8/10 3591 days 1%
Berry 10/10 3618 days 0%
Steve 9/10 3621 days 0%
MaggieYChaChi 9/10 3698 days 25%
GenH 9/10 3821 days 25%
Allison Meyoz 9/10 3827 days 25%
G Tulloch 9/10 3845 days 25%
Stephen Hunt 9/10 3847 days 25%
Thomas Klebensberger 10/10 3847 days 25%
Therea 10/10 3850 days 25%
Sean Brownell 7/10 3851 days 23%
Laura Thrower 10/10 3856 days 25%
David Taylor 9/10 3856 days 25%
Stefan Schmitz 8/10 3864 days 24%
Marii Joekalda 8/10 3865 days 24%
Frank & Ruth 6/10 3866 days 21%
Nathalie 10/10 3866 days 25%
Jo Meekley 7/10 3866 days 23%
Margit and Corein Groenevelt 8/10 3868 days 24%
Judith 9/10 3868 days 25%
Ven 8/10 3868 days 24%
Florian 8/10 3872 days 24%
Helen 9/10 3872 days 25%
Juliane Kleiu 10/10 3872 days 25%
Paula Dove 10/10 3872 days 25%
Erin 8/10 3873 days 24%
Walter Buschta 8/10 3873 days 24%
Wouter Moui 6/10 3874 days 21%
K Dahmer 8/10 3875 days 24%
Jonathan Cree 9/10 3875 days 25%
Laura Leigh 10/10 3875 days 25%
Ann-Kathrin Auditor 10/10 3876 days 25%
Katherine Forward 8/10 3876 days 24%
Chris Ashton 10/10 3876 days 25%
Jerry & Floon 7/10 3880 days 23%
Hadar Zevulun 9/10 3881 days 25%
Grumbach 9/10 3885 days 25%
Caroline Sheridan 9/10 3886 days 25%
Chris Darlington 10/10 3890 days 25%
Cheryl 10/10 3900 days 25%
Mark Aarts 9/10 3901 days 25%
Samuel Prechel 8/10 3902 days 24%
Dave and Lin Mungham 10/10 3903 days 25%
Gordon Daniels 8/10 3905 days 24%
Dr Dorthe Bossow 3/10 3906 days 19%
Helen Gilbertson 8/10 3909 days 24%
Doris Neuber 9/10 3909 days 25%
Ashleigh Buckley 8/10 3910 days 24%
PerspirationJournal 10/10 4002 days 25%
alku83 10/10 4002 days 25%
Mary Van 8/10 4063 days 24%
chloe1111 10/10 4186 days 25%
jenniferuk 9/10 4186 days 25%
Peter and Hilda 10/10 4216 days 25%
Einar 9/10 4235 days 25%
Inbar Yizhar Barnea 8/10 4235 days 24%
Tanya 9/10 4240 days 25%
Jana Steve 10/10 4241 days 25%
Yasmin Abrahams 7/10 4249 days 23%
Barbara & Sven 10/10 4249 days 25%
Judith 8/10 4253 days 24%
Henrik Hougs 8/10 4255 days 24%
Chris Glasg 9/10 4255 days 25%
Michael 10/10 4257 days 25%
Gary Ebrig 10/10 4260 days 25%
Mathias 9/10 4262 days 25%
Jamie 9/10 4267 days 25%
David Hobson 8/10 4267 days 24%
Christian 10/10 4267 days 25%
vanijzendoor 8/10 4270 days 24%
Dick Rosman 8/10 4271 days 24%
Frances Hay 8/10 4274 days 24%
Chance McGuire 10/10 4275 days 25%
Kevin and Teresa 8/10 4275 days 24%
Ben Miklozek 9/10 4275 days 25%
Marianne Lovdal 9/10 4275 days 25%
Jessica 5/10 4280 days 20%
S Luis Van Oler 6/10 4280 days 21%
sophiep 8/10 4321 days 24%
katharinatum 9/10 4321 days 25%
koellner 6/10 4335 days 21%
chrish1 9/10 4337 days 25%
Fred Findlay 7/10 4349 days 23%
maleta 9/10 4358 days 25%
Gemma Morris 10/10 4360 days 25%
TomL 10/10 4367 days 25%
Pauline Wan 7/10 4367 days 23%
eowyn2k 7/10 4367 days 23%
Suzanne 9/10 4398 days 25%
terryd 9/10 4459 days 25%
kindel 6/10 4463 days 21%
Emear Donnelly 10/10 4502 days 25%
zoed 7/10 4536 days 23%
steph_m 9/10 4551 days 25%
Charles Lyne 10/10 4551 days 25%
BenM1 7/10 4560 days 23%
KimC 8/10 4569 days 24%
JonK 8/10 4569 days 24%
TschaneK 10/10 4571 days 25%
RogerW 10/10 4573 days 25%
NicolaW 10/10 4573 days 25%
Lisa Duin 8/10 4579 days 24%
Joanna Harrnon 9/10 4580 days 25%
David 8/10 4581 days 24%
johnst 10/10 4581 days 25%
Adi 10/10 4581 days 25%
Sally477 9/10 4582 days 25%
Becca1 9/10 4583 days 25%
Jelle 8/10 4584 days 24%
Denys 8/10 4585 days 24%
Ronny 9/10 4585 days 25%
Viktoria Stoffel 10/10 4588 days 25%
Jon Li 9/10 4593 days 25%
Han Disveld 9/10 4593 days 25%
BevanLisa 10/10 4598 days 25%
SabineGermany 10/10 4599 days 25%
StefanGermany1 9/10 4599 days 25%
AnjaC 7/10 4599 days 23%
AnjaChrist 7/10 4599 days 23%
Torsten 9/10 4600 days 25%
MarcoJ 8/10 4601 days 24%
James O'Neil 10/10 4601 days 25%
Barry Smith 10/10 4601 days 25%
Siemens 8/10 4601 days 24%
AlexH 10/10 4602 days 25%
AnnickH 6/10 4603 days 21%
Rene 8/10 4604 days 24%
Dorothee 8/10 4604 days 24%
Rob 7/10 4604 days 23%
Mike 6/10 4605 days 21%
TammyH 9/10 4607 days 25%
Lynn White 7/10 4607 days 23%
Mette 8/10 4611 days 24%
Axel 5/10 4611 days 20%
amyd 8/10 4612 days 24%
Susan 9/10 4613 days 25%
lannie 5/10 4614 days 20%
XaviG 9/10 4615 days 25%
ChenM 8/10 4615 days 24%
Steven 9/10 4615 days 25%
CarleyJ 8/10 4615 days 24%
JesusB 7/10 4615 days 23%
GingerPrince 9/10 4615 days 25%
Steve 10/10 4615 days 25%
Claudia 9/10 4617 days 25%
Pascal 8/10 4617 days 24%
Karen 9/10 4620 days 25%
RandiL 7/10 4623 days 23%
IreneF 9/10 4624 days 25%
Rachel 8/10 4630 days 24%
Adi 10/10 4630 days 25%
Claire 8/10 4630 days 24%
Philippa 9/10 4631 days 25%
Conway 9/10 4631 days 25%
orianne 10/10 4638 days 25%
Caroline 7/10 4638 days 23%
Eike 9/10 4645 days 25%
Benni 7/10 4647 days 23%
John 6/10 4650 days 21%
Dan 9/10 4654 days 25%
Sally 9/10 4654 days 25%
Rosa 4/10 4654 days 20%
Sascha 7/10 4655 days 23%
Dassel 8/10 4655 days 24%
Eric 3/10 4656 days 19%
Charlie 9/10 4661 days 25%
tommfuller 7/10 4665 days 23%
Anouk 9/10 4693 days 25%
MissTraveller2009 10/10 4702 days 25%
David 9/10 4706 days 25%
Laura 9/10 4706 days 25%
Adam 8/10 4711 days 24%
mike brett 7/10 4715 days 23%
georgepearse 9/10 4752 days 25%
Aoife 8/10 4755 days 24%
Davina 8/10 4756 days 24%
Kath 10/10 4758 days 25%
Kate 8/10 4767 days 24%
Brenda 8/10 4767 days 24%
Amy 8/10 4776 days 24%
Katie 10/10 4776 days 25%
Christoffer 10/10 4778 days 25%
Rebecca 9/10 4778 days 25%
Suyin 10/10 4778 days 25%
Sarah 6/10 4787 days 21%
Michaela 9/10 4791 days 25%
Christopher 6/10 4791 days 21%
James 8/10 4791 days 24%
Sam Prior 8/10 4796 days 24%
jillian 8/10 4800 days 24%
George Burgas 9/10 4805 days 25%
stain weedman 6/10 4811 days 21%
Sharon Curly 9/10 4813 days 25%
Peddy 7/10 4817 days 23%
Tim 5/10 4833 days 20%
Thomas Fillary 9/10 4849 days 25%
Sjoerd 8/10 4855 days 24%
Gemma Harling 9/10 4855 days 25%
Charlie Bond 9/10 4862 days 25%
Florencia Cortese 10/10 4923 days 25%
Meike Biel 7/10 4931 days 23%
Helen 9/10 4931 days 25%
Ellie 9/10 4943 days 25%
Daniel 7/10 4961 days 23%
Omer Harron 9/10 4961 days 25%
Yayami Kimura 10/10 4964 days 25%
Kieran Concarr 9/10 4964 days 25%
Christian 8/10 4968 days 24%
Kathrin 9/10 4972 days 25%
Andreas Brett 8/10 4974 days 24%
Kristine Clemmensen Rotne 7/10 4974 days 23%
helga 6/10 4974 days 21%
Emily Houston 10/10 4978 days 25%
Hannah Holmes 8/10 4981 days 24%
Lisa Tame 9/10 4982 days 25%
Kelly 9/10 4985 days 25%
Stephanie 10/10 4993 days 25%
Sayaka 7/10 4993 days 23%
Marc Hertogs 8/10 4997 days 24%
Tanya Berthoud 9/10 4999 days 25%
Van Hoof 8/10 5021 days 24%
Berger 8/10 5028 days 24%
Travis Brennan 9/10 5040 days 25%
Alexis 10/10 5055 days 25%
Martine Arsac 5/10 5063 days 20%
Frida 8/10 5065 days 24%
Ben 10/10 5066 days 25%
Wendy Williams 8/10 5073 days 24%
Charlie Wilson 10/10 5148 days 25%
Ian Coldrake 8/10 5148 days 24%
Jill Bourke 10/10 5153 days 25%
Andy Chapman 8/10 5183 days 24%
Shelley 10/10 5288 days 25%
Will 9/10 5297 days 25%
Michael 9/10 5299 days 25%
Sue 8/10 5299 days 24%
Stefan 8/10 5302 days 24%
Jenny 8/10 5305 days 24%
Kate 8/10 5307 days 24%
Paul Yacoumis 7/10 5309 days 23%
Kathryn 9/10 5314 days 25%
Celia 9/10 5316 days 25%
Annelte 4/10 5317 days 20%
IdanNakash 8/10 5317 days 24%
Martin Christina 9/10 5317 days 25%
Chris 8/10 5318 days 24%
Janneke 8/10 5318 days 24%
Sue Robertson 10/10 5320 days 25%
Fenke 7/10 5323 days 23%
Bas 7/10 5323 days 23%
Daniel 9/10 5325 days 25%
Susan 6/10 5331 days 21%
ErikVanDam 9/10 5337 days 25%
MariaNorman 9/10 5337 days 25%
MarcHarris 8/10 5337 days 24%
Helena 10/10 5337 days 25%
Sarah 10/10 5346 days 25%
beesom 8/10 5347 days 24%
Peter 5/10 5351 days 20%
Sonja 7/10 5358 days 23%
Leah 8/10 5359 days 24%
Sarah 10/10 5379 days 25%

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

-3.58% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 59 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 -3.53%
198 -3.55%
199 -3.57%
200 -3.58%
201 -3.60%
202 -3.62%
203 -3.64%

Final Ranking Score

81%

The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.