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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

85.18%

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 3353 days 100%
Jessica Freeland 10/10 3414 days 93%
Nanna Overbeck 10/10 3426 days 92%
Joe Rogers 9/10 3707 days 60%
Nicola Wiggan 9/10 3776 days 53%
Ben McDougal 10/10 3798 days 51%
Maria Schober 5/10 4085 days 12%
Helen Parsons 1/10 4093 days 0%
Elisa Felising 7/10 4093 days 17%
Claudia de Winter 9/10 4405 days 43%
Penny Lee 9/10 4407 days 43%
Jeroen Suijlang 8/10 4407 days 42%
Ludvig Fagerstrom 8/10 4481 days 42%
Marco Schmidt 10/10 4778 days 43%
Christian Schumacher 10/10 4778 days 43%
Jennifer Bramstad 8/10 4798 days 42%
Evelina Johansson 8/10 4798 days 42%
Sofia Anderson 10/10 4798 days 43%
Steve 5/10 4799 days 30%
Janine Kohlgrueler 9/10 4806 days 43%
Fraser Goldsmith 9/10 4823 days 43%
Nigel Leighton 10/10 4877 days 43%
Jonathan Vondette 7/10 4880 days 39%
Andreas and Christine and Nora Busch 10/10 4888 days 43%
lavonc 3/10 4919 days 18%
peterpiper 10/10 5103 days 43%
sandytemp22 10/10 5133 days 43%
Laura vanGool 10/10 5149 days 43%
Barbara Berkhout 7/10 5149 days 39%
Jurgen Joyce 8/10 5156 days 42%
Carole Carter 9/10 5156 days 43%
Sabrina Germany 9/10 5159 days 43%
J Jmal 10/10 5160 days 43%
Malena 10/10 5164 days 43%
Erik 10/10 5166 days 43%
Marion Hassink 8/10 5170 days 42%
Baas 8/10 5173 days 42%
Barbara 10/10 5174 days 43%
Rebecca Richardson 8/10 5175 days 42%
Andrew Powell 7/10 5175 days 39%
Andy Bridgman 8/10 5178 days 42%
Aoife Lillis 7/10 5181 days 39%
Rainer Schnell 8/10 5185 days 42%
Filsack 8/10 5185 days 42%
Hazel 10/10 5186 days 43%
Frank Waskikowski 9/10 5187 days 43%
Andreas Kristiansen 9/10 5187 days 43%
Robert MacLeod-Smith 8/10 5189 days 42%
Chris Marsh 6/10 5190 days 36%
Jessica Lane 7/10 5190 days 39%
Francis Corrigan 7/10 5194 days 39%
Laura Smith 9/10 5206 days 43%
Dean 8/10 5239 days 42%
Berry 10/10 5266 days 43%
Steve 9/10 5269 days 43%
MaggieYChaChi 9/10 5346 days 43%
GenH 9/10 5469 days 43%
Allison Meyoz 9/10 5475 days 43%
G Tulloch 9/10 5493 days 43%
Stephen Hunt 9/10 5495 days 43%
Thomas Klebensberger 10/10 5495 days 43%
Therea 10/10 5498 days 43%
Sean Brownell 7/10 5499 days 39%
Laura Thrower 10/10 5504 days 43%
David Taylor 9/10 5504 days 43%
Stefan Schmitz 8/10 5512 days 42%
Marii Joekalda 8/10 5513 days 42%
Frank & Ruth 6/10 5514 days 36%
Nathalie 10/10 5514 days 43%
Jo Meekley 7/10 5514 days 39%
Margit and Corein Groenevelt 8/10 5516 days 42%
Judith 9/10 5516 days 43%
Ven 8/10 5516 days 42%
Florian 8/10 5520 days 42%
Helen 9/10 5520 days 43%
Juliane Kleiu 10/10 5520 days 43%
Paula Dove 10/10 5520 days 43%
Erin 8/10 5521 days 42%
Walter Buschta 8/10 5521 days 42%
Wouter Moui 6/10 5522 days 36%
K Dahmer 8/10 5523 days 42%
Jonathan Cree 9/10 5523 days 43%
Laura Leigh 10/10 5523 days 43%
Ann-Kathrin Auditor 10/10 5524 days 43%
Katherine Forward 8/10 5524 days 42%
Chris Ashton 10/10 5524 days 43%
Jerry & Floon 7/10 5528 days 39%
Hadar Zevulun 9/10 5529 days 43%
Grumbach 9/10 5533 days 43%
Caroline Sheridan 9/10 5534 days 43%
Chris Darlington 10/10 5538 days 43%
Cheryl 10/10 5548 days 43%
Mark Aarts 9/10 5549 days 43%
Samuel Prechel 8/10 5550 days 42%
Dave and Lin Mungham 10/10 5551 days 43%
Gordon Daniels 8/10 5553 days 42%
Dr Dorthe Bossow 3/10 5554 days 18%
Helen Gilbertson 8/10 5557 days 42%
Doris Neuber 9/10 5557 days 43%
Ashleigh Buckley 8/10 5558 days 42%
PerspirationJournal 10/10 5650 days 43%
alku83 10/10 5650 days 43%
Mary Van 8/10 5711 days 42%
chloe1111 10/10 5834 days 43%
jenniferuk 9/10 5834 days 43%
Peter and Hilda 10/10 5864 days 43%
Einar 9/10 5883 days 43%
Inbar Yizhar Barnea 8/10 5883 days 42%
Tanya 9/10 5888 days 43%
Jana Steve 10/10 5889 days 43%
Yasmin Abrahams 7/10 5897 days 39%
Barbara & Sven 10/10 5897 days 43%
Judith 8/10 5901 days 42%
Henrik Hougs 8/10 5903 days 42%
Chris Glasg 9/10 5903 days 43%
Michael 10/10 5905 days 43%
Gary Ebrig 10/10 5908 days 43%
Mathias 9/10 5910 days 43%
Jamie 9/10 5915 days 43%
David Hobson 8/10 5915 days 42%
Christian 10/10 5915 days 43%
vanijzendoor 8/10 5918 days 42%
Dick Rosman 8/10 5919 days 42%
Frances Hay 8/10 5922 days 42%
Chance McGuire 10/10 5923 days 43%
Kevin and Teresa 8/10 5923 days 42%
Ben Miklozek 9/10 5923 days 43%
Marianne Lovdal 9/10 5923 days 43%
Jessica 5/10 5928 days 30%
S Luis Van Oler 6/10 5928 days 36%
sophiep 8/10 5969 days 42%
katharinatum 9/10 5969 days 43%
koellner 6/10 5983 days 36%
chrish1 9/10 5985 days 43%
Fred Findlay 7/10 5997 days 39%
maleta 9/10 6006 days 43%
Gemma Morris 10/10 6008 days 43%
TomL 10/10 6015 days 43%
Pauline Wan 7/10 6015 days 39%
eowyn2k 7/10 6015 days 39%
Suzanne 9/10 6046 days 43%
terryd 9/10 6107 days 43%
kindel 6/10 6111 days 36%
Emear Donnelly 10/10 6150 days 43%
zoed 7/10 6184 days 39%
steph_m 9/10 6199 days 43%
Charles Lyne 10/10 6199 days 43%
BenM1 7/10 6208 days 39%
KimC 8/10 6217 days 42%
JonK 8/10 6217 days 42%
TschaneK 10/10 6219 days 43%
RogerW 10/10 6221 days 43%
NicolaW 10/10 6221 days 43%
Lisa Duin 8/10 6227 days 42%
Joanna Harrnon 9/10 6228 days 43%
David 8/10 6229 days 42%
johnst 10/10 6229 days 43%
Adi 10/10 6229 days 43%
Sally477 9/10 6230 days 43%
Becca1 9/10 6231 days 43%
Jelle 8/10 6232 days 42%
Denys 8/10 6233 days 42%
Ronny 9/10 6233 days 43%
Viktoria Stoffel 10/10 6236 days 43%
Jon Li 9/10 6241 days 43%
Han Disveld 9/10 6241 days 43%
BevanLisa 10/10 6246 days 43%
SabineGermany 10/10 6247 days 43%
StefanGermany1 9/10 6247 days 43%
AnjaC 7/10 6247 days 39%
AnjaChrist 7/10 6247 days 39%
Torsten 9/10 6248 days 43%
MarcoJ 8/10 6249 days 42%
James O'Neil 10/10 6249 days 43%
Barry Smith 10/10 6249 days 43%
Siemens 8/10 6249 days 42%
AlexH 10/10 6250 days 43%
AnnickH 6/10 6251 days 36%
Rene 8/10 6252 days 42%
Dorothee 8/10 6252 days 42%
Rob 7/10 6252 days 39%
Mike 6/10 6253 days 36%
TammyH 9/10 6255 days 43%
Lynn White 7/10 6255 days 39%
Mette 8/10 6259 days 42%
Axel 5/10 6259 days 30%
amyd 8/10 6260 days 42%
Susan 9/10 6261 days 43%
lannie 5/10 6262 days 30%
XaviG 9/10 6263 days 43%
ChenM 8/10 6263 days 42%
Steven 9/10 6263 days 43%
CarleyJ 8/10 6263 days 42%
JesusB 7/10 6263 days 39%
GingerPrince 9/10 6263 days 43%
Steve 10/10 6263 days 43%
Claudia 9/10 6265 days 43%
Pascal 8/10 6265 days 42%
Karen 9/10 6268 days 43%
RandiL 7/10 6271 days 39%
IreneF 9/10 6272 days 43%
Rachel 8/10 6278 days 42%
Adi 10/10 6278 days 43%
Claire 8/10 6278 days 42%
Philippa 9/10 6279 days 43%
Conway 9/10 6279 days 43%
orianne 10/10 6286 days 43%
Caroline 7/10 6286 days 39%
Eike 9/10 6293 days 43%
Benni 7/10 6295 days 39%
John 6/10 6298 days 36%
Dan 9/10 6302 days 43%
Sally 9/10 6302 days 43%
Rosa 4/10 6302 days 24%
Sascha 7/10 6303 days 39%
Dassel 8/10 6303 days 42%
Eric 3/10 6304 days 18%
Charlie 9/10 6309 days 43%
tommfuller 7/10 6313 days 39%
Anouk 9/10 6341 days 43%
MissTraveller2009 10/10 6350 days 43%
David 9/10 6354 days 43%
Laura 9/10 6354 days 43%
Adam 8/10 6359 days 42%
mike brett 7/10 6363 days 39%
georgepearse 9/10 6400 days 43%
Aoife 8/10 6403 days 42%
Davina 8/10 6404 days 42%
Kath 10/10 6406 days 43%
Kate 8/10 6415 days 42%
Brenda 8/10 6415 days 42%
Amy 8/10 6424 days 42%
Katie 10/10 6424 days 43%
Christoffer 10/10 6426 days 43%
Rebecca 9/10 6426 days 43%
Suyin 10/10 6426 days 43%
Sarah 6/10 6435 days 36%
Michaela 9/10 6439 days 43%
Christopher 6/10 6439 days 36%
James 8/10 6439 days 42%
Sam Prior 8/10 6444 days 42%
jillian 8/10 6448 days 42%
George Burgas 9/10 6453 days 43%
stain weedman 6/10 6459 days 36%
Sharon Curly 9/10 6461 days 43%
Peddy 7/10 6465 days 39%
Tim 5/10 6481 days 30%
Thomas Fillary 9/10 6497 days 43%
Sjoerd 8/10 6503 days 42%
Gemma Harling 9/10 6503 days 43%
Charlie Bond 9/10 6510 days 43%
Florencia Cortese 10/10 6571 days 43%
Meike Biel 7/10 6579 days 39%
Helen 9/10 6579 days 43%
Ellie 9/10 6591 days 43%
Daniel 7/10 6609 days 39%
Omer Harron 9/10 6609 days 43%
Yayami Kimura 10/10 6612 days 43%
Kieran Concarr 9/10 6612 days 43%
Christian 8/10 6616 days 42%
Kathrin 9/10 6620 days 43%
Andreas Brett 8/10 6622 days 42%
Kristine Clemmensen Rotne 7/10 6622 days 39%
helga 6/10 6622 days 36%
Emily Houston 10/10 6626 days 43%
Hannah Holmes 8/10 6629 days 42%
Lisa Tame 9/10 6630 days 43%
Kelly 9/10 6633 days 43%
Stephanie 10/10 6641 days 43%
Sayaka 7/10 6641 days 39%
Marc Hertogs 8/10 6645 days 42%
Tanya Berthoud 9/10 6647 days 43%
Van Hoof 8/10 6669 days 42%
Berger 8/10 6676 days 42%
Travis Brennan 9/10 6688 days 43%
Alexis 10/10 6703 days 43%
Martine Arsac 5/10 6711 days 30%
Frida 8/10 6713 days 42%
Ben 10/10 6714 days 43%
Wendy Williams 8/10 6721 days 42%
Charlie Wilson 10/10 6796 days 43%
Ian Coldrake 8/10 6796 days 42%
Jill Bourke 10/10 6801 days 43%
Andy Chapman 8/10 6831 days 42%
Shelley 10/10 6936 days 43%
Will 9/10 6945 days 43%
Michael 9/10 6947 days 43%
Sue 8/10 6947 days 42%
Stefan 8/10 6950 days 42%
Jenny 8/10 6953 days 42%
Kate 8/10 6955 days 42%
Paul Yacoumis 7/10 6957 days 39%
Kathryn 9/10 6962 days 43%
Celia 9/10 6964 days 43%
Annelte 4/10 6965 days 24%
IdanNakash 8/10 6965 days 42%
Martin Christina 9/10 6965 days 43%
Chris 8/10 6966 days 42%
Janneke 8/10 6966 days 42%
Sue Robertson 10/10 6968 days 43%
Fenke 7/10 6971 days 39%
Bas 7/10 6971 days 39%
Daniel 9/10 6973 days 43%
Susan 6/10 6979 days 36%
ErikVanDam 9/10 6985 days 43%
MariaNorman 9/10 6985 days 43%
MarcHarris 8/10 6985 days 42%
Helena 10/10 6985 days 43%
Sarah 10/10 6994 days 43%
beesom 8/10 6995 days 42%
Peter 5/10 6999 days 30%
Sonja 7/10 7006 days 39%
Leah 8/10 7007 days 42%
Sarah 10/10 7027 days 43%

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

-3.34% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 70 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 -3.29%
198 -3.30%
199 -3.32%
200 -3.34%
201 -3.35%
202 -3.37%
203 -3.39%
… …

Balancing Adjustment

2.52% 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.