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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

85.18%

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 3333 days 100%
Jessica Freeland 10/10 3394 days 93%
Nanna Overbeck 10/10 3406 days 92%
Joe Rogers 9/10 3687 days 61%
Nicola Wiggan 9/10 3756 days 53%
Ben McDougal 10/10 3778 days 52%
Maria Schober 5/10 4065 days 13%
Helen Parsons 1/10 4073 days 0%
Elisa Felising 7/10 4073 days 17%
Claudia de Winter 9/10 4385 days 41%
Penny Lee 9/10 4387 days 41%
Jeroen Suijlang 8/10 4387 days 41%
Ludvig Fagerstrom 8/10 4461 days 41%
Marco Schmidt 10/10 4758 days 42%
Christian Schumacher 10/10 4758 days 42%
Jennifer Bramstad 8/10 4778 days 41%
Evelina Johansson 8/10 4778 days 41%
Sofia Anderson 10/10 4778 days 42%
Steve 5/10 4779 days 29%
Janine Kohlgrueler 9/10 4786 days 41%
Fraser Goldsmith 9/10 4803 days 41%
Nigel Leighton 10/10 4857 days 42%
Jonathan Vondette 7/10 4860 days 38%
Andreas and Christine and Nora Busch 10/10 4868 days 42%
lavonc 3/10 4899 days 17%
peterpiper 10/10 5083 days 42%
sandytemp22 10/10 5113 days 42%
Laura vanGool 10/10 5129 days 42%
Barbara Berkhout 7/10 5129 days 38%
Jurgen Joyce 8/10 5136 days 41%
Carole Carter 9/10 5136 days 41%
Sabrina Germany 9/10 5139 days 41%
J Jmal 10/10 5140 days 42%
Malena 10/10 5144 days 42%
Erik 10/10 5146 days 42%
Marion Hassink 8/10 5150 days 41%
Baas 8/10 5153 days 41%
Barbara 10/10 5154 days 42%
Rebecca Richardson 8/10 5155 days 41%
Andrew Powell 7/10 5155 days 38%
Andy Bridgman 8/10 5158 days 41%
Aoife Lillis 7/10 5161 days 38%
Rainer Schnell 8/10 5165 days 41%
Filsack 8/10 5165 days 41%
Hazel 10/10 5166 days 42%
Frank Waskikowski 9/10 5167 days 41%
Andreas Kristiansen 9/10 5167 days 41%
Robert MacLeod-Smith 8/10 5169 days 41%
Chris Marsh 6/10 5170 days 34%
Jessica Lane 7/10 5170 days 38%
Francis Corrigan 7/10 5174 days 38%
Laura Smith 9/10 5186 days 41%
Dean 8/10 5219 days 41%
Berry 10/10 5246 days 42%
Steve 9/10 5249 days 41%
MaggieYChaChi 9/10 5326 days 41%
GenH 9/10 5449 days 41%
Allison Meyoz 9/10 5455 days 41%
G Tulloch 9/10 5473 days 41%
Stephen Hunt 9/10 5475 days 41%
Thomas Klebensberger 10/10 5475 days 42%
Therea 10/10 5478 days 42%
Sean Brownell 7/10 5479 days 38%
Laura Thrower 10/10 5484 days 42%
David Taylor 9/10 5484 days 41%
Stefan Schmitz 8/10 5492 days 41%
Marii Joekalda 8/10 5493 days 41%
Frank & Ruth 6/10 5494 days 34%
Nathalie 10/10 5494 days 42%
Jo Meekley 7/10 5494 days 38%
Margit and Corein Groenevelt 8/10 5496 days 41%
Judith 9/10 5496 days 41%
Ven 8/10 5496 days 41%
Florian 8/10 5500 days 41%
Helen 9/10 5500 days 41%
Juliane Kleiu 10/10 5500 days 42%
Paula Dove 10/10 5500 days 42%
Erin 8/10 5501 days 41%
Walter Buschta 8/10 5501 days 41%
Wouter Moui 6/10 5502 days 34%
K Dahmer 8/10 5503 days 41%
Jonathan Cree 9/10 5503 days 41%
Laura Leigh 10/10 5503 days 42%
Ann-Kathrin Auditor 10/10 5504 days 42%
Katherine Forward 8/10 5504 days 41%
Chris Ashton 10/10 5504 days 42%
Jerry & Floon 7/10 5508 days 38%
Hadar Zevulun 9/10 5509 days 41%
Grumbach 9/10 5513 days 41%
Caroline Sheridan 9/10 5514 days 41%
Chris Darlington 10/10 5518 days 42%
Cheryl 10/10 5528 days 42%
Mark Aarts 9/10 5529 days 41%
Samuel Prechel 8/10 5530 days 41%
Dave and Lin Mungham 10/10 5531 days 42%
Gordon Daniels 8/10 5533 days 41%
Dr Dorthe Bossow 3/10 5534 days 17%
Helen Gilbertson 8/10 5537 days 41%
Doris Neuber 9/10 5537 days 41%
Ashleigh Buckley 8/10 5538 days 41%
PerspirationJournal 10/10 5630 days 42%
alku83 10/10 5630 days 42%
Mary Van 8/10 5691 days 41%
chloe1111 10/10 5814 days 42%
jenniferuk 9/10 5814 days 41%
Peter and Hilda 10/10 5844 days 42%
Einar 9/10 5863 days 41%
Inbar Yizhar Barnea 8/10 5863 days 41%
Tanya 9/10 5868 days 41%
Jana Steve 10/10 5869 days 42%
Yasmin Abrahams 7/10 5877 days 38%
Barbara & Sven 10/10 5877 days 42%
Judith 8/10 5881 days 41%
Henrik Hougs 8/10 5883 days 41%
Chris Glasg 9/10 5883 days 41%
Michael 10/10 5885 days 42%
Gary Ebrig 10/10 5888 days 42%
Mathias 9/10 5890 days 41%
Jamie 9/10 5895 days 41%
David Hobson 8/10 5895 days 41%
Christian 10/10 5895 days 42%
vanijzendoor 8/10 5898 days 41%
Dick Rosman 8/10 5899 days 41%
Frances Hay 8/10 5902 days 41%
Chance McGuire 10/10 5903 days 42%
Kevin and Teresa 8/10 5903 days 41%
Ben Miklozek 9/10 5903 days 41%
Marianne Lovdal 9/10 5903 days 41%
Jessica 5/10 5908 days 29%
S Luis Van Oler 6/10 5908 days 34%
sophiep 8/10 5949 days 41%
katharinatum 9/10 5949 days 41%
koellner 6/10 5963 days 34%
chrish1 9/10 5965 days 41%
Fred Findlay 7/10 5977 days 38%
maleta 9/10 5986 days 41%
Gemma Morris 10/10 5988 days 42%
TomL 10/10 5995 days 42%
Pauline Wan 7/10 5995 days 38%
eowyn2k 7/10 5995 days 38%
Suzanne 9/10 6026 days 41%
terryd 9/10 6087 days 41%
kindel 6/10 6091 days 34%
Emear Donnelly 10/10 6130 days 42%
zoed 7/10 6164 days 38%
steph_m 9/10 6179 days 41%
Charles Lyne 10/10 6179 days 42%
BenM1 7/10 6188 days 38%
KimC 8/10 6197 days 41%
JonK 8/10 6197 days 41%
TschaneK 10/10 6199 days 42%
RogerW 10/10 6201 days 42%
NicolaW 10/10 6201 days 42%
Lisa Duin 8/10 6207 days 41%
Joanna Harrnon 9/10 6208 days 41%
David 8/10 6209 days 41%
johnst 10/10 6209 days 42%
Adi 10/10 6209 days 42%
Sally477 9/10 6210 days 41%
Becca1 9/10 6211 days 41%
Jelle 8/10 6212 days 41%
Denys 8/10 6213 days 41%
Ronny 9/10 6213 days 41%
Viktoria Stoffel 10/10 6216 days 42%
Jon Li 9/10 6221 days 41%
Han Disveld 9/10 6221 days 41%
BevanLisa 10/10 6226 days 42%
SabineGermany 10/10 6227 days 42%
StefanGermany1 9/10 6227 days 41%
AnjaC 7/10 6227 days 38%
AnjaChrist 7/10 6227 days 38%
Torsten 9/10 6228 days 41%
MarcoJ 8/10 6229 days 41%
James O'Neil 10/10 6229 days 42%
Barry Smith 10/10 6229 days 42%
Siemens 8/10 6229 days 41%
AlexH 10/10 6230 days 42%
AnnickH 6/10 6231 days 34%
Rene 8/10 6232 days 41%
Dorothee 8/10 6232 days 41%
Rob 7/10 6232 days 38%
Mike 6/10 6233 days 34%
TammyH 9/10 6235 days 41%
Lynn White 7/10 6235 days 38%
Mette 8/10 6239 days 41%
Axel 5/10 6239 days 29%
amyd 8/10 6240 days 41%
Susan 9/10 6241 days 41%
lannie 5/10 6242 days 29%
XaviG 9/10 6243 days 41%
ChenM 8/10 6243 days 41%
Steven 9/10 6243 days 41%
CarleyJ 8/10 6243 days 41%
JesusB 7/10 6243 days 38%
GingerPrince 9/10 6243 days 41%
Steve 10/10 6243 days 42%
Claudia 9/10 6245 days 41%
Pascal 8/10 6245 days 41%
Karen 9/10 6248 days 41%
RandiL 7/10 6251 days 38%
IreneF 9/10 6252 days 41%
Rachel 8/10 6258 days 41%
Adi 10/10 6258 days 42%
Claire 8/10 6258 days 41%
Philippa 9/10 6259 days 41%
Conway 9/10 6259 days 41%
orianne 10/10 6266 days 42%
Caroline 7/10 6266 days 38%
Eike 9/10 6273 days 41%
Benni 7/10 6275 days 38%
John 6/10 6278 days 34%
Dan 9/10 6282 days 41%
Sally 9/10 6282 days 41%
Rosa 4/10 6282 days 23%
Sascha 7/10 6283 days 38%
Dassel 8/10 6283 days 41%
Eric 3/10 6284 days 17%
Charlie 9/10 6289 days 41%
tommfuller 7/10 6293 days 38%
Anouk 9/10 6321 days 41%
MissTraveller2009 10/10 6330 days 42%
David 9/10 6334 days 41%
Laura 9/10 6334 days 41%
Adam 8/10 6339 days 41%
mike brett 7/10 6343 days 38%
georgepearse 9/10 6380 days 41%
Aoife 8/10 6383 days 41%
Davina 8/10 6384 days 41%
Kath 10/10 6386 days 42%
Kate 8/10 6395 days 41%
Brenda 8/10 6395 days 41%
Amy 8/10 6404 days 41%
Katie 10/10 6404 days 42%
Christoffer 10/10 6406 days 42%
Rebecca 9/10 6406 days 41%
Suyin 10/10 6406 days 42%
Sarah 6/10 6415 days 34%
Michaela 9/10 6419 days 41%
Christopher 6/10 6419 days 34%
James 8/10 6419 days 41%
Sam Prior 8/10 6424 days 41%
jillian 8/10 6428 days 41%
George Burgas 9/10 6433 days 41%
stain weedman 6/10 6439 days 34%
Sharon Curly 9/10 6441 days 41%
Peddy 7/10 6445 days 38%
Tim 5/10 6461 days 29%
Thomas Fillary 9/10 6477 days 41%
Sjoerd 8/10 6483 days 41%
Gemma Harling 9/10 6483 days 41%
Charlie Bond 9/10 6490 days 41%
Florencia Cortese 10/10 6551 days 42%
Meike Biel 7/10 6559 days 38%
Helen 9/10 6559 days 41%
Ellie 9/10 6571 days 41%
Daniel 7/10 6589 days 38%
Omer Harron 9/10 6589 days 41%
Yayami Kimura 10/10 6592 days 42%
Kieran Concarr 9/10 6592 days 41%
Christian 8/10 6596 days 41%
Kathrin 9/10 6600 days 41%
Andreas Brett 8/10 6602 days 41%
Kristine Clemmensen Rotne 7/10 6602 days 38%
helga 6/10 6602 days 34%
Emily Houston 10/10 6606 days 42%
Hannah Holmes 8/10 6609 days 41%
Lisa Tame 9/10 6610 days 41%
Kelly 9/10 6613 days 41%
Stephanie 10/10 6621 days 42%
Sayaka 7/10 6621 days 38%
Marc Hertogs 8/10 6625 days 41%
Tanya Berthoud 9/10 6627 days 41%
Van Hoof 8/10 6649 days 41%
Berger 8/10 6656 days 41%
Travis Brennan 9/10 6669 days 41%
Alexis 10/10 6683 days 42%
Martine Arsac 5/10 6691 days 29%
Frida 8/10 6693 days 41%
Ben 10/10 6694 days 42%
Wendy Williams 8/10 6701 days 41%
Charlie Wilson 10/10 6776 days 42%
Ian Coldrake 8/10 6776 days 41%
Jill Bourke 10/10 6781 days 42%
Andy Chapman 8/10 6811 days 41%
Shelley 10/10 6916 days 42%
Will 9/10 6925 days 41%
Michael 9/10 6927 days 41%
Sue 8/10 6927 days 41%
Stefan 8/10 6930 days 41%
Jenny 8/10 6933 days 41%
Kate 8/10 6935 days 41%
Paul Yacoumis 7/10 6937 days 38%
Kathryn 9/10 6942 days 41%
Celia 9/10 6944 days 41%
Annelte 4/10 6945 days 23%
IdanNakash 8/10 6945 days 41%
Martin Christina 9/10 6945 days 41%
Chris 8/10 6946 days 41%
Janneke 8/10 6946 days 41%
Sue Robertson 10/10 6948 days 42%
Fenke 7/10 6951 days 38%
Bas 7/10 6951 days 38%
Daniel 9/10 6953 days 41%
Susan 6/10 6959 days 34%
ErikVanDam 9/10 6965 days 41%
MariaNorman 9/10 6965 days 41%
MarcHarris 8/10 6965 days 41%
Helena 10/10 6965 days 42%
Sarah 10/10 6974 days 42%
beesom 8/10 6975 days 41%
Peter 5/10 6979 days 29%
Sonja 7/10 6986 days 38%
Leah 8/10 6987 days 41%
Sarah 10/10 7007 days 42%

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

-3.74% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 60 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 -3.68%
198 -3.70%
199 -3.72%
200 -3.74%
201 -3.76%
202 -3.77%
203 -3.79%
… …

Balancing Adjustment

2.62% 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.