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

84.84%

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 1585 days 100%
Jessica Freeland 10/10 1646 days 97%
Nanna Overbeck 10/10 1658 days 96%
Joe Rogers 9/10 1939 days 82%
Nicola Wiggan 9/10 2008 days 79%
Ben McDougal 10/10 2030 days 78%
Maria Schober 5/10 2317 days 51%
Helen Parsons 1/10 2325 days 45%
Elisa Felising 7/10 2325 days 57%
Claudia de Winter 9/10 2637 days 47%
Penny Lee 9/10 2639 days 47%
Jeroen Suijlang 8/10 2639 days 45%
Ludvig Fagerstrom 8/10 2713 days 41%
Marco Schmidt 10/10 3010 days 28%
Christian Schumacher 10/10 3010 days 28%
Jennifer Bramstad 8/10 3030 days 26%
Evelina Johansson 8/10 3030 days 26%
Sofia Anderson 10/10 3030 days 27%
Steve 5/10 3031 days 22%
Janine Kohlgrueler 9/10 3038 days 27%
Fraser Goldsmith 9/10 3055 days 26%
Nigel Leighton 10/10 3109 days 24%
Jonathan Vondette 7/10 3112 days 21%
Andreas and Christine and Nora Busch 10/10 3120 days 23%
lavonc 3/10 3151 days 16%
peterpiper 10/10 3335 days 12%
sandytemp22 10/10 3365 days 11%
Laura vanGool 10/10 3381 days 10%
Barbara Berkhout 7/10 3381 days 9%
Jurgen Joyce 8/10 3388 days 9%
Carole Carter 9/10 3388 days 10%
Sabrina Germany 9/10 3391 days 9%
J Jmal 10/10 3392 days 9%
Malena 10/10 3396 days 9%
Erik 10/10 3398 days 9%
Marion Hassink 8/10 3402 days 8%
Baas 8/10 3405 days 8%
Barbara 10/10 3406 days 9%
Rebecca Richardson 8/10 3407 days 8%
Andrew Powell 7/10 3407 days 7%
Andy Bridgman 8/10 3410 days 8%
Aoife Lillis 7/10 3413 days 7%
Rainer Schnell 8/10 3417 days 7%
Filsack 8/10 3417 days 7%
Hazel 10/10 3418 days 8%
Frank Waskikowski 9/10 3419 days 8%
Andreas Kristiansen 9/10 3419 days 8%
Robert MacLeod-Smith 8/10 3421 days 7%
Chris Marsh 6/10 3422 days 6%
Jessica Lane 7/10 3422 days 7%
Francis Corrigan 7/10 3426 days 7%
Laura Smith 9/10 3438 days 7%
Dean 8/10 3471 days 5%
Berry 10/10 3498 days 4%
Steve 9/10 3501 days 4%
MaggieYChaChi 9/10 3578 days 0%
GenH 9/10 3701 days 22%
Allison Meyoz 9/10 3707 days 22%
G Tulloch 9/10 3725 days 22%
Stephen Hunt 9/10 3727 days 22%
Thomas Klebensberger 10/10 3727 days 22%
Therea 10/10 3730 days 22%
Sean Brownell 7/10 3731 days 20%
Laura Thrower 10/10 3736 days 22%
David Taylor 9/10 3736 days 22%
Stefan Schmitz 8/10 3744 days 21%
Marii Joekalda 8/10 3745 days 21%
Frank & Ruth 6/10 3746 days 18%
Nathalie 10/10 3746 days 22%
Jo Meekley 7/10 3746 days 20%
Margit and Corein Groenevelt 8/10 3748 days 21%
Judith 9/10 3748 days 22%
Ven 8/10 3748 days 21%
Florian 8/10 3752 days 21%
Helen 9/10 3752 days 22%
Juliane Kleiu 10/10 3752 days 22%
Paula Dove 10/10 3752 days 22%
Erin 8/10 3753 days 21%
Walter Buschta 8/10 3753 days 21%
Wouter Moui 6/10 3754 days 18%
K Dahmer 8/10 3755 days 21%
Jonathan Cree 9/10 3755 days 22%
Laura Leigh 10/10 3755 days 22%
Ann-Kathrin Auditor 10/10 3756 days 22%
Katherine Forward 8/10 3756 days 21%
Chris Ashton 10/10 3756 days 22%
Jerry & Floon 7/10 3760 days 20%
Hadar Zevulun 9/10 3761 days 22%
Grumbach 9/10 3765 days 22%
Caroline Sheridan 9/10 3766 days 22%
Chris Darlington 10/10 3770 days 22%
Cheryl 10/10 3780 days 22%
Mark Aarts 9/10 3781 days 22%
Samuel Prechel 8/10 3782 days 21%
Dave and Lin Mungham 10/10 3783 days 22%
Gordon Daniels 8/10 3785 days 21%
Dr Dorthe Bossow 3/10 3786 days 16%
Helen Gilbertson 8/10 3789 days 21%
Doris Neuber 9/10 3789 days 22%
Ashleigh Buckley 8/10 3790 days 21%
PerspirationJournal 10/10 3882 days 22%
alku83 10/10 3882 days 22%
Mary Van 8/10 3943 days 21%
chloe1111 10/10 4066 days 22%
jenniferuk 9/10 4066 days 22%
Peter and Hilda 10/10 4096 days 22%
Einar 9/10 4115 days 22%
Inbar Yizhar Barnea 8/10 4115 days 21%
Tanya 9/10 4120 days 22%
Jana Steve 10/10 4121 days 22%
Yasmin Abrahams 7/10 4129 days 20%
Barbara & Sven 10/10 4129 days 22%
Judith 8/10 4133 days 21%
Henrik Hougs 8/10 4135 days 21%
Chris Glasg 9/10 4135 days 22%
Michael 10/10 4137 days 22%
Gary Ebrig 10/10 4140 days 22%
Mathias 9/10 4142 days 22%
Jamie 9/10 4147 days 22%
David Hobson 8/10 4147 days 21%
Christian 10/10 4147 days 22%
vanijzendoor 8/10 4150 days 21%
Dick Rosman 8/10 4151 days 21%
Frances Hay 8/10 4154 days 21%
Chance McGuire 10/10 4155 days 22%
Kevin and Teresa 8/10 4155 days 21%
Ben Miklozek 9/10 4155 days 22%
Marianne Lovdal 9/10 4155 days 22%
Jessica 5/10 4160 days 17%
S Luis Van Oler 6/10 4160 days 18%
sophiep 8/10 4201 days 21%
katharinatum 9/10 4201 days 22%
koellner 6/10 4215 days 18%
chrish1 9/10 4217 days 22%
Fred Findlay 7/10 4229 days 20%
maleta 9/10 4238 days 22%
Gemma Morris 10/10 4240 days 22%
TomL 10/10 4247 days 22%
Pauline Wan 7/10 4247 days 20%
eowyn2k 7/10 4247 days 20%
Suzanne 9/10 4278 days 22%
terryd 9/10 4339 days 22%
kindel 6/10 4343 days 18%
Emear Donnelly 10/10 4382 days 22%
zoed 7/10 4416 days 20%
steph_m 9/10 4431 days 22%
Charles Lyne 10/10 4431 days 22%
BenM1 7/10 4440 days 20%
KimC 8/10 4449 days 21%
JonK 8/10 4449 days 21%
TschaneK 10/10 4451 days 22%
RogerW 10/10 4453 days 22%
NicolaW 10/10 4453 days 22%
Lisa Duin 8/10 4459 days 21%
Joanna Harrnon 9/10 4460 days 22%
David 8/10 4461 days 21%
johnst 10/10 4461 days 22%
Adi 10/10 4461 days 22%
Sally477 9/10 4462 days 22%
Becca1 9/10 4463 days 22%
Jelle 8/10 4464 days 21%
Denys 8/10 4465 days 21%
Ronny 9/10 4465 days 22%
Viktoria Stoffel 10/10 4468 days 22%
Jon Li 9/10 4473 days 22%
Han Disveld 9/10 4473 days 22%
BevanLisa 10/10 4478 days 22%
SabineGermany 10/10 4479 days 22%
StefanGermany1 9/10 4479 days 22%
AnjaC 7/10 4479 days 20%
AnjaChrist 7/10 4479 days 20%
Torsten 9/10 4480 days 22%
MarcoJ 8/10 4481 days 21%
James O'Neil 10/10 4481 days 22%
Barry Smith 10/10 4481 days 22%
Siemens 8/10 4481 days 21%
AlexH 10/10 4482 days 22%
AnnickH 6/10 4483 days 18%
Rene 8/10 4484 days 21%
Dorothee 8/10 4484 days 21%
Rob 7/10 4484 days 20%
Mike 6/10 4485 days 18%
TammyH 9/10 4487 days 22%
Lynn White 7/10 4487 days 20%
Mette 8/10 4491 days 21%
Axel 5/10 4491 days 17%
amyd 8/10 4492 days 21%
Susan 9/10 4493 days 22%
lannie 5/10 4494 days 17%
XaviG 9/10 4495 days 22%
ChenM 8/10 4495 days 21%
Steven 9/10 4495 days 22%
CarleyJ 8/10 4495 days 21%
JesusB 7/10 4495 days 20%
GingerPrince 9/10 4495 days 22%
Steve 10/10 4495 days 22%
Claudia 9/10 4497 days 22%
Pascal 8/10 4497 days 21%
Karen 9/10 4500 days 22%
RandiL 7/10 4503 days 20%
IreneF 9/10 4504 days 22%
Rachel 8/10 4510 days 21%
Adi 10/10 4510 days 22%
Claire 8/10 4510 days 21%
Philippa 9/10 4511 days 22%
Conway 9/10 4511 days 22%
orianne 10/10 4518 days 22%
Caroline 7/10 4518 days 20%
Eike 9/10 4525 days 22%
Benni 7/10 4527 days 20%
John 6/10 4530 days 18%
Dan 9/10 4534 days 22%
Sally 9/10 4534 days 22%
Rosa 4/10 4534 days 17%
Sascha 7/10 4535 days 20%
Dassel 8/10 4535 days 21%
Eric 3/10 4536 days 16%
Charlie 9/10 4541 days 22%
tommfuller 7/10 4545 days 20%
Anouk 9/10 4573 days 22%
MissTraveller2009 10/10 4582 days 22%
David 9/10 4587 days 22%
Laura 9/10 4587 days 22%
Adam 8/10 4591 days 21%
mike brett 7/10 4595 days 20%
georgepearse 9/10 4632 days 22%
Aoife 8/10 4635 days 21%
Davina 8/10 4636 days 21%
Kath 10/10 4638 days 22%
Kate 8/10 4647 days 21%
Brenda 8/10 4647 days 21%
Amy 8/10 4656 days 21%
Katie 10/10 4656 days 22%
Christoffer 10/10 4658 days 22%
Rebecca 9/10 4659 days 22%
Suyin 10/10 4659 days 22%
Sarah 6/10 4667 days 18%
Michaela 9/10 4671 days 22%
Christopher 6/10 4671 days 18%
James 8/10 4671 days 21%
Sam Prior 8/10 4676 days 21%
jillian 8/10 4680 days 21%
George Burgas 9/10 4685 days 22%
stain weedman 6/10 4691 days 18%
Sharon Curly 9/10 4693 days 22%
Peddy 7/10 4697 days 20%
Tim 5/10 4713 days 17%
Thomas Fillary 9/10 4729 days 22%
Sjoerd 8/10 4735 days 21%
Gemma Harling 9/10 4735 days 22%
Charlie Bond 9/10 4742 days 22%
Florencia Cortese 10/10 4803 days 22%
Meike Biel 7/10 4811 days 20%
Helen 9/10 4811 days 22%
Ellie 9/10 4823 days 22%
Daniel 7/10 4841 days 20%
Omer Harron 9/10 4841 days 22%
Yayami Kimura 10/10 4844 days 22%
Kieran Concarr 9/10 4844 days 22%
Christian 8/10 4848 days 21%
Kathrin 9/10 4852 days 22%
Andreas Brett 8/10 4854 days 21%
Kristine Clemmensen Rotne 7/10 4854 days 20%
helga 6/10 4854 days 18%
Emily Houston 10/10 4858 days 22%
Hannah Holmes 8/10 4861 days 21%
Lisa Tame 9/10 4862 days 22%
Kelly 9/10 4865 days 22%
Stephanie 10/10 4873 days 22%
Sayaka 7/10 4873 days 20%
Marc Hertogs 8/10 4877 days 21%
Tanya Berthoud 9/10 4879 days 22%
Van Hoof 8/10 4901 days 21%
Berger 8/10 4908 days 21%
Travis Brennan 9/10 4921 days 22%
Alexis 10/10 4935 days 22%
Martine Arsac 5/10 4943 days 17%
Frida 8/10 4945 days 21%
Ben 10/10 4946 days 22%
Wendy Williams 8/10 4953 days 21%
Charlie Wilson 10/10 5028 days 22%
Ian Coldrake 8/10 5028 days 21%
Jill Bourke 10/10 5033 days 22%
Andy Chapman 8/10 5063 days 21%
Shelley 10/10 5168 days 22%
Will 9/10 5177 days 22%
Michael 9/10 5179 days 22%
Sue 8/10 5179 days 21%
Stefan 8/10 5182 days 21%
Jenny 8/10 5185 days 21%
Kate 8/10 5187 days 21%
Paul Yacoumis 7/10 5189 days 20%
Kathryn 9/10 5194 days 22%
Celia 9/10 5196 days 22%
Annelte 4/10 5197 days 17%
IdanNakash 8/10 5197 days 21%
Martin Christina 9/10 5197 days 22%
Chris 8/10 5198 days 21%
Janneke 8/10 5198 days 21%
Sue Robertson 10/10 5200 days 22%
Fenke 7/10 5203 days 20%
Bas 7/10 5203 days 20%
Daniel 9/10 5205 days 22%
Susan 6/10 5211 days 18%
ErikVanDam 9/10 5217 days 22%
MariaNorman 9/10 5217 days 22%
MarcHarris 8/10 5217 days 21%
Helena 10/10 5217 days 22%
Sarah 10/10 5226 days 22%
beesom 8/10 5227 days 21%
Peter 5/10 5231 days 17%
Sonja 7/10 5238 days 20%
Leah 8/10 5239 days 21%
Sarah 10/10 5259 days 22%

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

-2.18% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 117 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 -2.14%
198 -2.16%
199 -2.17%
200 -2.18%
201 -2.19%
202 -2.20%
203 -2.21%

Final Ranking Score

83%

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.