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

85.45%

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 Face-to-Face Weight Relative Weight
Fran and Ben 10/10 1387 days true 4.43 100%
Jessica Freeland 10/10 1448 days true 4.31 97%
Nanna Overbeck 10/10 1460 days true 4.29 97%
Joe Rogers 9/10 1741 days true 3.74 84%
Nicola Wiggan 9/10 1810 days true 3.6 81%
Ben McDougal 10/10 1832 days true 3.56 80%
Maria Schober 5/10 2119 days true 2.43 55%
Helen Parsons 1/10 2127 days true 2.18 49%
Elisa Felising 7/10 2127 days true 2.71 61%
Claudia de Winter 9/10 2439 days true 2.37 54%
Penny Lee 9/10 2441 days true 2.37 53%
Jeroen Suijlang 8/10 2441 days true 2.25 51%
Ludvig Fagerstrom 8/10 2515 days true 2.11 48%
Marco Schmidt 10/10 2812 days true 1.64 37%
Christian Schumacher 10/10 2812 days true 1.64 37%
Jennifer Bramstad 8/10 2832 days true 1.52 34%
Evelina Johansson 8/10 2832 days true 1.52 34%
Sofia Anderson 10/10 2832 days true 1.6 36%
Steve 5/10 2833 days 1.3 29%
Janine Kohlgrueler 9/10 2840 days true 1.59 36%
Fraser Goldsmith 9/10 2857 days true 1.55 35%
Nigel Leighton 10/10 2911 days true 1.45 33%
Jonathan Vondette 7/10 2914 days true 1.31 30%
Andreas and Christine and Nora Busch 10/10 2922 days true 1.42 32%
lavonc 3/10 2953 days 1.05 24%
peterpiper 10/10 3137 days 1.0 23%
sandytemp22 10/10 3167 days 0.95 21%
Laura vanGool 10/10 3183 days true 0.91 21%
Barbara Berkhout 7/10 3183 days true 0.83 19%
Jurgen Joyce 8/10 3190 days true 0.86 19%
Carole Carter 9/10 3190 days true 0.9 20%
Sabrina Germany 9/10 3193 days true 0.89 20%
J Jmal 10/10 3194 days true 0.89 20%
Malena 10/10 3198 days 0.88 20%
Erik 10/10 3200 days true 0.88 20%
Marion Hassink 8/10 3204 days true 0.83 19%
Baas 8/10 3207 days true 0.82 19%
Barbara 10/10 3208 days true 0.86 20%
Rebecca Richardson 8/10 3209 days true 0.82 19%
Andrew Powell 7/10 3209 days true 0.79 18%
Andy Bridgman 8/10 3212 days true 0.81 18%
Aoife Lillis 7/10 3215 days true 0.77 17%
Rainer Schnell 8/10 3219 days true 0.8 18%
Filsack 8/10 3219 days true 0.8 18%
Hazel 10/10 3220 days true 0.84 19%
Frank Waskikowski 9/10 3221 days true 0.84 19%
Andreas Kristiansen 9/10 3221 days true 0.84 19%
Robert MacLeod-Smith 8/10 3223 days true 0.79 18%
Chris Marsh 6/10 3224 days true 0.69 16%
Jessica Lane 7/10 3224 days true 0.76 17%
Francis Corrigan 7/10 3228 days true 0.75 17%
Laura Smith 9/10 3240 days true 0.8 18%
Dean 8/10 3273 days true 0.7 16%
Berry 10/10 3300 days true 0.68 15%
Steve 9/10 3303 days true 0.68 15%
MaggieYChaChi 9/10 3380 days 0.53 12%
GenH 9/10 3503 days 0.29 6%
Allison Meyoz 9/10 3509 days true 0.28 6%
G Tulloch 9/10 3527 days true 0.24 5%
Stephen Hunt 9/10 3529 days true 0.24 5%
Thomas Klebensberger 10/10 3529 days true 0.24 5%
Therea 10/10 3532 days true 0.23 5%
Sean Brownell 7/10 3533 days true 0.21 5%
Laura Thrower 10/10 3538 days true 0.22 5%
David Taylor 9/10 3538 days true 0.22 5%
Stefan Schmitz 8/10 3546 days true 0.19 4%
Marii Joekalda 8/10 3547 days true 0.19 4%
Frank & Ruth 6/10 3548 days true 0.17 4%
Nathalie 10/10 3548 days true 0.2 5%
Jo Meekley 7/10 3548 days true 0.18 4%
Margit and Corein Groenevelt 8/10 3550 days true 0.19 4%
Judith 9/10 3550 days true 0.2 4%
Ven 8/10 3550 days true 0.19 4%
Florian 8/10 3554 days true 0.18 4%
Helen 9/10 3554 days true 0.19 4%
Juliane Kleiu 10/10 3554 days true 0.19 4%
Paula Dove 10/10 3554 days true 0.19 4%
Erin 8/10 3555 days true 0.18 4%
Walter Buschta 8/10 3555 days true 0.18 4%
Wouter Moui 6/10 3556 days true 0.15 3%
K Dahmer 8/10 3557 days true 0.17 4%
Jonathan Cree 9/10 3557 days true 0.18 4%
Laura Leigh 10/10 3557 days true 0.18 4%
Ann-Kathrin Auditor 10/10 3558 days true 0.18 4%
Katherine Forward 8/10 3558 days true 0.17 4%
Chris Ashton 10/10 3558 days true 0.18 4%
Jerry & Floon 7/10 3562 days true 0.16 4%
Hadar Zevulun 9/10 3563 days true 0.17 4%
Grumbach 9/10 3567 days true 0.16 4%
Caroline Sheridan 9/10 3568 days true 0.16 4%
Chris Darlington 10/10 3572 days true 0.15 3%
Cheryl 10/10 3582 days true 0.13 3%
Mark Aarts 9/10 3583 days true 0.13 3%
Samuel Prechel 8/10 3584 days true 0.12 3%
Dave and Lin Mungham 10/10 3585 days true 0.13 3%
Gordon Daniels 8/10 3587 days true 0.12 3%
Dr Dorthe Bossow 3/10 3588 days true 0.09 2%
Helen Gilbertson 8/10 3591 days true 0.11 2%
Doris Neuber 9/10 3591 days true 0.12 3%
Ashleigh Buckley 8/10 3592 days true 0.11 2%
PerspirationJournal 10/10 3684 days 0.0 0%
alku83 10/10 3684 days 0.0 0%
Mary Van 8/10 3745 days 0.0 0%
chloe1111 10/10 3868 days 0.0 0%
jenniferuk 9/10 3868 days true 0.0 0%
Peter and Hilda 10/10 3898 days true 0.0 0%
Einar 9/10 3917 days true 0.0 0%
Inbar Yizhar Barnea 8/10 3917 days true 0.0 0%
Tanya 9/10 3922 days true 0.0 0%
Jana Steve 10/10 3923 days true 0.0 0%
Yasmin Abrahams 7/10 3931 days true 0.0 0%
Barbara & Sven 10/10 3931 days true 0.0 0%
Judith 8/10 3935 days true 0.0 0%
Henrik Hougs 8/10 3937 days true 0.0 0%
Chris Glasg 9/10 3937 days true 0.0 0%
Michael 10/10 3939 days true 0.0 0%
Gary Ebrig 10/10 3942 days true 0.0 0%
Mathias 9/10 3944 days true 0.0 0%
Jamie 9/10 3949 days true 0.0 0%
David Hobson 8/10 3949 days true 0.0 0%
Christian 10/10 3949 days true 0.0 0%
vanijzendoor 8/10 3952 days true 0.0 0%
Dick Rosman 8/10 3953 days true 0.0 0%
Frances Hay 8/10 3956 days true 0.0 0%
Chance McGuire 10/10 3957 days 0.0 0%
Kevin and Teresa 8/10 3957 days true 0.0 0%
Ben Miklozek 9/10 3957 days true 0.0 0%
Marianne Lovdal 9/10 3957 days true 0.0 0%
Jessica 5/10 3962 days true 0.0 0%
S Luis Van Oler 6/10 3962 days true 0.0 0%
sophiep 8/10 4003 days true 0.0 0%
katharinatum 9/10 4003 days true 0.0 0%
koellner 6/10 4017 days true 0.0 0%
chrish1 9/10 4019 days true 0.0 0%
Fred Findlay 7/10 4031 days true 0.0 0%
maleta 9/10 4040 days true 0.0 0%
Gemma Morris 10/10 4042 days true 0.0 0%
TomL 10/10 4049 days 0.0 0%
Pauline Wan 7/10 4049 days 0.0 0%
eowyn2k 7/10 4049 days 0.0 0%
Suzanne 9/10 4080 days 0.0 0%
terryd 9/10 4141 days true 0.0 0%
kindel 6/10 4145 days true 0.0 0%
Emear Donnelly 10/10 4184 days true 0.0 0%
zoed 7/10 4218 days true 0.0 0%
steph_m 9/10 4233 days 0.0 0%
Charles Lyne 10/10 4233 days 0.0 0%
BenM1 7/10 4242 days true 0.0 0%
KimC 8/10 4251 days true 0.0 0%
JonK 8/10 4251 days true 0.0 0%
TschaneK 10/10 4253 days true 0.0 0%
RogerW 10/10 4255 days true 0.0 0%
NicolaW 10/10 4255 days true 0.0 0%
Lisa Duin 8/10 4261 days true 0.0 0%
Joanna Harrnon 9/10 4262 days true 0.0 0%
David 8/10 4263 days 0.0 0%
johnst 10/10 4263 days true 0.0 0%
Adi 10/10 4263 days true 0.0 0%
Sally477 9/10 4264 days 0.0 0%
Becca1 9/10 4265 days true 0.0 0%
Jelle 8/10 4266 days true 0.0 0%
Denys 8/10 4267 days true 0.0 0%
Ronny 9/10 4267 days true 0.0 0%
Viktoria Stoffel 10/10 4270 days true 0.0 0%
Jon Li 9/10 4275 days true 0.0 0%
Han Disveld 9/10 4275 days true 0.0 0%
BevanLisa 10/10 4280 days true 0.0 0%
SabineGermany 10/10 4281 days true 0.0 0%
StefanGermany1 9/10 4281 days true 0.0 0%
AnjaC 7/10 4281 days true 0.0 0%
AnjaChrist 7/10 4281 days true 0.0 0%
Torsten 9/10 4282 days true 0.0 0%
MarcoJ 8/10 4283 days true 0.0 0%
James O'Neil 10/10 4283 days true 0.0 0%
Barry Smith 10/10 4283 days true 0.0 0%
Siemens 8/10 4283 days true 0.0 0%
AlexH 10/10 4284 days true 0.0 0%
AnnickH 6/10 4285 days true 0.0 0%
Rene 8/10 4286 days true 0.0 0%
Dorothee 8/10 4286 days true 0.0 0%
Rob 7/10 4286 days true 0.0 0%
Mike 6/10 4287 days true 0.0 0%
TammyH 9/10 4289 days true 0.0 0%
Lynn White 7/10 4289 days 0.0 0%
Mette 8/10 4293 days true 0.0 0%
Axel 5/10 4293 days true 0.0 0%
amyd 8/10 4294 days 0.0 0%
Susan 9/10 4295 days true 0.0 0%
lannie 5/10 4296 days true 0.0 0%
XaviG 9/10 4297 days true 0.0 0%
ChenM 8/10 4297 days true 0.0 0%
Steven 9/10 4297 days true 0.0 0%
CarleyJ 8/10 4297 days true 0.0 0%
JesusB 7/10 4297 days true 0.0 0%
GingerPrince 9/10 4297 days true 0.0 0%
Steve 10/10 4297 days true 0.0 0%
Claudia 9/10 4299 days true 0.0 0%
Pascal 8/10 4299 days true 0.0 0%
Karen 9/10 4302 days true 0.0 0%
RandiL 7/10 4305 days true 0.0 0%
IreneF 9/10 4306 days true 0.0 0%
Rachel 8/10 4312 days true 0.0 0%
Adi 10/10 4312 days true 0.0 0%
Claire 8/10 4312 days true 0.0 0%
Philippa 9/10 4313 days true 0.0 0%
Conway 9/10 4313 days true 0.0 0%
orianne 10/10 4320 days 0.0 0%
Caroline 7/10 4320 days true 0.0 0%
Eike 9/10 4327 days true 0.0 0%
Benni 7/10 4329 days true 0.0 0%
John 6/10 4332 days true 0.0 0%
Dan 9/10 4336 days true 0.0 0%
Sally 9/10 4336 days true 0.0 0%
Rosa 4/10 4336 days true 0.0 0%
Sascha 7/10 4337 days true 0.0 0%
Dassel 8/10 4337 days true 0.0 0%
Eric 3/10 4338 days true 0.0 0%
Charlie 9/10 4343 days true 0.0 0%
tommfuller 7/10 4347 days 0.0 0%
Anouk 9/10 4375 days true 0.0 0%
MissTraveller2009 10/10 4384 days 0.0 0%
David 9/10 4388 days true 0.0 0%
Laura 9/10 4388 days true 0.0 0%
Adam 8/10 4393 days true 0.0 0%
mike brett 7/10 4397 days 0.0 0%
georgepearse 9/10 4434 days 0.0 0%
Aoife 8/10 4437 days true 0.0 0%
Davina 8/10 4438 days true 0.0 0%
Kath 10/10 4440 days true 0.0 0%
Kate 8/10 4449 days true 0.0 0%
Brenda 8/10 4449 days true 0.0 0%
Amy 8/10 4458 days true 0.0 0%
Katie 10/10 4458 days true 0.0 0%
Christoffer 10/10 4460 days true 0.0 0%
Rebecca 9/10 4460 days true 0.0 0%
Suyin 10/10 4460 days true 0.0 0%
Sarah 6/10 4469 days true 0.0 0%
Michaela 9/10 4473 days true 0.0 0%
Christopher 6/10 4473 days true 0.0 0%
James 8/10 4473 days true 0.0 0%
Sam Prior 8/10 4478 days true 0.0 0%
jillian 8/10 4482 days true 0.0 0%
George Burgas 9/10 4487 days true 0.0 0%
stain weedman 6/10 4493 days 0.0 0%
Sharon Curly 9/10 4495 days true 0.0 0%
Peddy 7/10 4499 days 0.0 0%
Tim 5/10 4515 days true 0.0 0%
Thomas Fillary 9/10 4531 days 0.0 0%
Sjoerd 8/10 4537 days true 0.0 0%
Gemma Harling 9/10 4537 days true 0.0 0%
Charlie Bond 9/10 4544 days true 0.0 0%
Florencia Cortese 10/10 4605 days true 0.0 0%
Meike Biel 7/10 4613 days true 0.0 0%
Helen 9/10 4613 days true 0.0 0%
Ellie 9/10 4625 days 0.0 0%
Daniel 7/10 4643 days true 0.0 0%
Omer Harron 9/10 4643 days true 0.0 0%
Yayami Kimura 10/10 4646 days true 0.0 0%
Kieran Concarr 9/10 4646 days true 0.0 0%
Christian 8/10 4650 days true 0.0 0%
Kathrin 9/10 4654 days true 0.0 0%
Andreas Brett 8/10 4656 days true 0.0 0%
Kristine Clemmensen Rotne 7/10 4656 days true 0.0 0%
helga 6/10 4656 days 0.0 0%
Emily Houston 10/10 4660 days true 0.0 0%
Hannah Holmes 8/10 4663 days true 0.0 0%
Lisa Tame 9/10 4664 days true 0.0 0%
Kelly 9/10 4667 days true 0.0 0%
Stephanie 10/10 4675 days true 0.0 0%
Sayaka 7/10 4675 days true 0.0 0%
Marc Hertogs 8/10 4679 days true 0.0 0%
Tanya Berthoud 9/10 4681 days true 0.0 0%
Van Hoof 8/10 4703 days true 0.0 0%
Berger 8/10 4710 days true 0.0 0%
Travis Brennan 9/10 4722 days 0.0 0%
Alexis 10/10 4737 days true 0.0 0%
Martine Arsac 5/10 4745 days true 0.0 0%
Frida 8/10 4747 days true 0.0 0%
Ben 10/10 4748 days true 0.0 0%
Wendy Williams 8/10 4755 days true 0.0 0%
Charlie Wilson 10/10 4830 days true 0.0 0%
Ian Coldrake 8/10 4830 days true 0.0 0%
Jill Bourke 10/10 4835 days true 0.0 0%
Andy Chapman 8/10 4865 days true 0.0 0%
Shelley 10/10 4970 days true 0.0 0%
Will 9/10 4979 days true 0.0 0%
Michael 9/10 4981 days true 0.0 0%
Sue 8/10 4981 days true 0.0 0%
Stefan 8/10 4984 days true 0.0 0%
Jenny 8/10 4987 days true 0.0 0%
Kate 8/10 4989 days true 0.0 0%
Paul Yacoumis 7/10 4991 days true 0.0 0%
Kathryn 9/10 4996 days true 0.0 0%
Celia 9/10 4998 days true 0.0 0%
Annelte 4/10 4999 days true 0.0 0%
IdanNakash 8/10 4999 days true 0.0 0%
Martin Christina 9/10 4999 days true 0.0 0%
Chris 8/10 5000 days true 0.0 0%
Janneke 8/10 5000 days true 0.0 0%
Sue Robertson 10/10 5002 days true 0.0 0%
Fenke 7/10 5005 days true 0.0 0%
Bas 7/10 5005 days true 0.0 0%
Daniel 9/10 5007 days true 0.0 0%
Susan 6/10 5013 days true 0.0 0%
ErikVanDam 9/10 5019 days true 0.0 0%
MariaNorman 9/10 5019 days true 0.0 0%
MarcHarris 8/10 5019 days true 0.0 0%
Helena 10/10 5019 days true 0.0 0%
Sarah 10/10 5028 days true 0.0 0%
beesom 8/10 5029 days true 0.0 0%
Peter 5/10 5033 days true 0.0 0%
Sonja 7/10 5040 days true 0.0 0%
Leah 8/10 5041 days true 0.0 0%
Sarah 10/10 5061 days true 0.0 0%

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 43 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.