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

84.69%

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 1389 days 100%
Jessica Freeland 10/10 1450 days 97%
Nanna Overbeck 10/10 1462 days 97%
Joe Rogers 9/10 1743 days 84%
Nicola Wiggan 9/10 1812 days 81%
Ben McDougal 10/10 1834 days 80%
Maria Schober 5/10 2121 days 54%
Helen Parsons 1/10 2129 days 48%
Elisa Felising 7/10 2129 days 60%
Claudia de Winter 9/10 2441 days 53%
Penny Lee 9/10 2443 days 52%
Jeroen Suijlang 8/10 2443 days 50%
Ludvig Fagerstrom 8/10 2517 days 47%
Marco Schmidt 10/10 2814 days 36%
Christian Schumacher 10/10 2814 days 36%
Jennifer Bramstad 8/10 2834 days 33%
Evelina Johansson 8/10 2834 days 33%
Sofia Anderson 10/10 2834 days 35%
Steve 5/10 2835 days 28%
Janine Kohlgrueler 9/10 2842 days 34%
Fraser Goldsmith 9/10 2859 days 34%
Nigel Leighton 10/10 2913 days 31%
Jonathan Vondette 7/10 2916 days 28%
Andreas and Christine and Nora Busch 10/10 2924 days 31%
lavonc 3/10 2955 days 22%
peterpiper 10/10 3139 days 21%
sandytemp22 10/10 3169 days 20%
Laura vanGool 10/10 3185 days 19%
Barbara Berkhout 7/10 3185 days 17%
Jurgen Joyce 8/10 3192 days 18%
Carole Carter 9/10 3192 days 19%
Sabrina Germany 9/10 3195 days 18%
J Jmal 10/10 3196 days 18%
Malena 10/10 3200 days 18%
Erik 10/10 3202 days 18%
Marion Hassink 8/10 3206 days 17%
Baas 8/10 3209 days 17%
Barbara 10/10 3210 days 18%
Rebecca Richardson 8/10 3211 days 17%
Andrew Powell 7/10 3211 days 16%
Andy Bridgman 8/10 3214 days 17%
Aoife Lillis 7/10 3217 days 16%
Rainer Schnell 8/10 3221 days 16%
Filsack 8/10 3221 days 16%
Hazel 10/10 3222 days 17%
Frank Waskikowski 9/10 3223 days 17%
Andreas Kristiansen 9/10 3223 days 17%
Robert MacLeod-Smith 8/10 3225 days 16%
Chris Marsh 6/10 3226 days 14%
Jessica Lane 7/10 3226 days 15%
Francis Corrigan 7/10 3230 days 15%
Laura Smith 9/10 3242 days 16%
Dean 8/10 3275 days 14%
Berry 10/10 3302 days 14%
Steve 9/10 3305 days 13%
MaggieYChaChi 9/10 3382 days 10%
GenH 9/10 3505 days 4%
Allison Meyoz 9/10 3511 days 4%
G Tulloch 9/10 3529 days 3%
Stephen Hunt 9/10 3531 days 3%
Thomas Klebensberger 10/10 3531 days 3%
Therea 10/10 3534 days 3%
Sean Brownell 7/10 3535 days 3%
Laura Thrower 10/10 3540 days 3%
David Taylor 9/10 3540 days 3%
Stefan Schmitz 8/10 3548 days 2%
Marii Joekalda 8/10 3549 days 2%
Frank & Ruth 6/10 3550 days 2%
Nathalie 10/10 3550 days 2%
Jo Meekley 7/10 3550 days 2%
Margit and Corein Groenevelt 8/10 3552 days 2%
Judith 9/10 3552 days 2%
Ven 8/10 3552 days 2%
Florian 8/10 3556 days 2%
Helen 9/10 3556 days 2%
Juliane Kleiu 10/10 3556 days 2%
Paula Dove 10/10 3556 days 2%
Erin 8/10 3557 days 2%
Walter Buschta 8/10 3557 days 2%
Wouter Moui 6/10 3558 days 1%
K Dahmer 8/10 3559 days 2%
Jonathan Cree 9/10 3559 days 2%
Laura Leigh 10/10 3559 days 2%
Ann-Kathrin Auditor 10/10 3560 days 2%
Katherine Forward 8/10 3560 days 2%
Chris Ashton 10/10 3560 days 2%
Jerry & Floon 7/10 3564 days 1%
Hadar Zevulun 9/10 3565 days 2%
Grumbach 9/10 3569 days 2%
Caroline Sheridan 9/10 3570 days 2%
Chris Darlington 10/10 3574 days 1%
Cheryl 10/10 3584 days 1%
Mark Aarts 9/10 3585 days 1%
Samuel Prechel 8/10 3586 days 1%
Dave and Lin Mungham 10/10 3587 days 1%
Gordon Daniels 8/10 3589 days 1%
Dr Dorthe Bossow 3/10 3590 days 0%
Helen Gilbertson 8/10 3593 days 0%
Doris Neuber 9/10 3593 days 0%
Ashleigh Buckley 8/10 3594 days 0%
PerspirationJournal 10/10 3686 days 21%
alku83 10/10 3686 days 21%
Mary Van 8/10 3747 days 20%
chloe1111 10/10 3870 days 21%
jenniferuk 9/10 3870 days 21%
Peter and Hilda 10/10 3900 days 21%
Einar 9/10 3919 days 21%
Inbar Yizhar Barnea 8/10 3919 days 20%
Tanya 9/10 3924 days 21%
Jana Steve 10/10 3925 days 21%
Yasmin Abrahams 7/10 3933 days 19%
Barbara & Sven 10/10 3933 days 21%
Judith 8/10 3937 days 20%
Henrik Hougs 8/10 3939 days 20%
Chris Glasg 9/10 3939 days 21%
Michael 10/10 3941 days 21%
Gary Ebrig 10/10 3944 days 21%
Mathias 9/10 3946 days 21%
Jamie 9/10 3951 days 21%
David Hobson 8/10 3951 days 20%
Christian 10/10 3951 days 21%
vanijzendoor 8/10 3954 days 20%
Dick Rosman 8/10 3955 days 20%
Frances Hay 8/10 3958 days 20%
Chance McGuire 10/10 3959 days 21%
Kevin and Teresa 8/10 3959 days 20%
Ben Miklozek 9/10 3959 days 21%
Marianne Lovdal 9/10 3959 days 21%
Jessica 5/10 3964 days 17%
S Luis Van Oler 6/10 3964 days 17%
sophiep 8/10 4005 days 20%
katharinatum 9/10 4005 days 21%
koellner 6/10 4019 days 17%
chrish1 9/10 4021 days 21%
Fred Findlay 7/10 4033 days 19%
maleta 9/10 4042 days 21%
Gemma Morris 10/10 4044 days 21%
TomL 10/10 4051 days 21%
Pauline Wan 7/10 4051 days 19%
eowyn2k 7/10 4051 days 19%
Suzanne 9/10 4082 days 21%
terryd 9/10 4143 days 21%
kindel 6/10 4147 days 17%
Emear Donnelly 10/10 4186 days 21%
zoed 7/10 4220 days 19%
steph_m 9/10 4235 days 21%
Charles Lyne 10/10 4235 days 21%
BenM1 7/10 4244 days 19%
KimC 8/10 4253 days 20%
JonK 8/10 4253 days 20%
TschaneK 10/10 4255 days 21%
RogerW 10/10 4257 days 21%
NicolaW 10/10 4257 days 21%
Lisa Duin 8/10 4263 days 20%
Joanna Harrnon 9/10 4264 days 21%
David 8/10 4265 days 20%
johnst 10/10 4265 days 21%
Adi 10/10 4266 days 21%
Sally477 9/10 4266 days 21%
Becca1 9/10 4267 days 21%
Jelle 8/10 4268 days 20%
Denys 8/10 4269 days 20%
Ronny 9/10 4269 days 21%
Viktoria Stoffel 10/10 4272 days 21%
Jon Li 9/10 4277 days 21%
Han Disveld 9/10 4277 days 21%
BevanLisa 10/10 4282 days 21%
SabineGermany 10/10 4283 days 21%
StefanGermany1 9/10 4283 days 21%
AnjaC 7/10 4283 days 19%
AnjaChrist 7/10 4283 days 19%
Torsten 9/10 4284 days 21%
MarcoJ 8/10 4285 days 20%
James O'Neil 10/10 4285 days 21%
Barry Smith 10/10 4285 days 21%
Siemens 8/10 4285 days 20%
AlexH 10/10 4286 days 21%
AnnickH 6/10 4287 days 17%
Rene 8/10 4289 days 20%
Dorothee 8/10 4289 days 20%
Rob 7/10 4289 days 19%
Mike 6/10 4289 days 17%
TammyH 9/10 4291 days 21%
Lynn White 7/10 4292 days 19%
Mette 8/10 4296 days 20%
Axel 5/10 4296 days 17%
amyd 8/10 4296 days 20%
Susan 9/10 4298 days 21%
lannie 5/10 4299 days 17%
XaviG 9/10 4299 days 21%
ChenM 8/10 4299 days 20%
Steven 9/10 4299 days 21%
CarleyJ 8/10 4299 days 20%
JesusB 7/10 4299 days 19%
GingerPrince 9/10 4299 days 21%
Steve 10/10 4299 days 21%
Claudia 9/10 4302 days 21%
Pascal 8/10 4302 days 20%
Karen 9/10 4304 days 21%
RandiL 7/10 4307 days 19%
IreneF 9/10 4308 days 21%
Rachel 8/10 4315 days 20%
Adi 10/10 4315 days 21%
Claire 8/10 4315 days 20%
Philippa 9/10 4316 days 21%
Conway 9/10 4316 days 21%
orianne 10/10 4322 days 21%
Caroline 7/10 4322 days 19%
Eike 9/10 4330 days 21%
Benni 7/10 4331 days 19%
John 6/10 4334 days 17%
Dan 9/10 4338 days 21%
Sally 9/10 4338 days 21%
Rosa 4/10 4338 days 16%
Sascha 7/10 4339 days 19%
Dassel 8/10 4339 days 20%
Eric 3/10 4341 days 16%
Charlie 9/10 4346 days 21%
tommfuller 7/10 4349 days 19%
Anouk 9/10 4378 days 21%
MissTraveller2009 10/10 4386 days 21%
David 9/10 4391 days 21%
Laura 9/10 4391 days 21%
Adam 8/10 4396 days 20%
mike brett 7/10 4399 days 19%
georgepearse 9/10 4437 days 21%
Aoife 8/10 4440 days 20%
Davina 8/10 4440 days 20%
Kath 10/10 4443 days 21%
Kate 8/10 4452 days 20%
Brenda 8/10 4452 days 20%
Amy 8/10 4461 days 20%
Katie 10/10 4461 days 21%
Christoffer 10/10 4463 days 21%
Rebecca 9/10 4463 days 21%
Suyin 10/10 4463 days 21%
Sarah 6/10 4472 days 17%
Michaela 9/10 4476 days 21%
Christopher 6/10 4476 days 17%
James 8/10 4476 days 20%
Sam Prior 8/10 4481 days 20%
jillian 8/10 4485 days 20%
George Burgas 9/10 4490 days 21%
stain weedman 6/10 4495 days 17%
Sharon Curly 9/10 4498 days 21%
Peddy 7/10 4502 days 19%
Tim 5/10 4517 days 17%
Thomas Fillary 9/10 4534 days 21%
Sjoerd 8/10 4540 days 20%
Gemma Harling 9/10 4540 days 21%
Charlie Bond 9/10 4547 days 21%
Florencia Cortese 10/10 4607 days 21%
Meike Biel 7/10 4615 days 19%
Helen 9/10 4615 days 21%
Ellie 9/10 4628 days 21%
Daniel 7/10 4645 days 19%
Omer Harron 9/10 4645 days 21%
Yayami Kimura 10/10 4648 days 21%
Kieran Concarr 9/10 4648 days 21%
Christian 8/10 4652 days 20%
Kathrin 9/10 4656 days 21%
Andreas Brett 8/10 4658 days 20%
Kristine Clemmensen Rotne 7/10 4658 days 19%
helga 6/10 4659 days 17%
Emily Houston 10/10 4662 days 21%
Hannah Holmes 8/10 4665 days 20%
Lisa Tame 9/10 4666 days 21%
Kelly 9/10 4669 days 21%
Stephanie 10/10 4677 days 21%
Sayaka 7/10 4677 days 19%
Marc Hertogs 8/10 4681 days 20%
Tanya Berthoud 9/10 4683 days 21%
Van Hoof 8/10 4705 days 20%
Berger 8/10 4712 days 20%
Travis Brennan 9/10 4725 days 21%
Alexis 10/10 4739 days 21%
Martine Arsac 5/10 4747 days 17%
Frida 8/10 4749 days 20%
Ben 10/10 4750 days 21%
Wendy Williams 8/10 4757 days 20%
Charlie Wilson 10/10 4832 days 21%
Ian Coldrake 8/10 4832 days 20%
Jill Bourke 10/10 4837 days 21%
Andy Chapman 8/10 4867 days 20%
Shelley 10/10 4972 days 21%
Will 9/10 4981 days 21%
Michael 9/10 4983 days 21%
Sue 8/10 4983 days 20%
Stefan 8/10 4986 days 20%
Jenny 8/10 4989 days 20%
Kate 8/10 4991 days 20%
Paul Yacoumis 7/10 4993 days 19%
Kathryn 9/10 4998 days 21%
Celia 9/10 5000 days 21%
Annelte 4/10 5001 days 16%
IdanNakash 8/10 5001 days 20%
Martin Christina 9/10 5001 days 21%
Chris 8/10 5002 days 20%
Janneke 8/10 5002 days 20%
Sue Robertson 10/10 5004 days 21%
Fenke 7/10 5007 days 19%
Bas 7/10 5007 days 19%
Daniel 9/10 5009 days 21%
Susan 6/10 5015 days 17%
ErikVanDam 9/10 5021 days 21%
MariaNorman 9/10 5021 days 21%
MarcHarris 8/10 5021 days 20%
Helena 10/10 5021 days 21%
Sarah 10/10 5030 days 21%
beesom 8/10 5031 days 20%
Peter 5/10 5035 days 17%
Sonja 7/10 5042 days 19%
Leah 8/10 5043 days 20%
Sarah 10/10 5063 days 21%

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

-4.07% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 42 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 -4.01%
198 -4.03%
199 -4.05%
200 -4.07%
201 -4.09%
202 -4.11%
203 -4.13%

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.