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

85.49%

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 1320 days true 4.56 100%
Jessica Freeland 10/10 1381 days true 4.44 97%
Nanna Overbeck 10/10 1393 days true 4.42 97%
Joe Rogers 9/10 1674 days true 3.87 85%
Nicola Wiggan 9/10 1743 days true 3.73 82%
Ben McDougal 10/10 1765 days true 3.69 81%
Maria Schober 5/10 2052 days true 2.53 56%
Helen Parsons 1/10 2060 days true 2.27 50%
Elisa Felising 7/10 2060 days true 2.83 62%
Claudia de Winter 9/10 2372 days true 2.5 55%
Penny Lee 9/10 2374 days true 2.5 55%
Jeroen Suijlang 8/10 2374 days true 2.37 52%
Ludvig Fagerstrom 8/10 2448 days true 2.23 49%
Marco Schmidt 10/10 2745 days true 1.77 39%
Christian Schumacher 10/10 2745 days true 1.77 39%
Jennifer Bramstad 8/10 2765 days true 1.65 36%
Evelina Johansson 8/10 2765 days true 1.65 36%
Sofia Anderson 10/10 2765 days true 1.73 38%
Steve 5/10 2766 days 1.4 31%
Janine Kohlgrueler 9/10 2773 days true 1.72 38%
Fraser Goldsmith 9/10 2790 days true 1.68 37%
Nigel Leighton 10/10 2844 days true 1.58 35%
Jonathan Vondette 7/10 2847 days true 1.43 31%
Andreas and Christine and Nora Busch 10/10 2855 days true 1.56 34%
lavonc 3/10 2886 days 1.15 25%
peterpiper 10/10 3070 days 1.14 25%
sandytemp22 10/10 3100 days 1.08 24%
Laura vanGool 10/10 3116 days true 1.05 23%
Barbara Berkhout 7/10 3116 days true 0.95 21%
Jurgen Joyce 8/10 3123 days true 0.98 21%
Carole Carter 9/10 3123 days true 1.03 23%
Sabrina Germany 9/10 3126 days true 1.03 22%
J Jmal 10/10 3127 days true 1.02 22%
Malena 10/10 3131 days 1.02 22%
Erik 10/10 3133 days true 1.01 22%
Marion Hassink 8/10 3137 days true 0.95 21%
Baas 8/10 3140 days true 0.95 21%
Barbara 10/10 3141 days true 1.0 22%
Rebecca Richardson 8/10 3142 days true 0.94 21%
Andrew Powell 7/10 3142 days true 0.9 20%
Andy Bridgman 8/10 3145 days true 0.94 21%
Aoife Lillis 7/10 3148 days true 0.89 20%
Rainer Schnell 8/10 3152 days true 0.93 20%
Filsack 8/10 3152 days true 0.93 20%
Hazel 10/10 3153 days true 0.97 21%
Frank Waskikowski 9/10 3154 days true 0.97 21%
Andreas Kristiansen 9/10 3154 days true 0.97 21%
Robert MacLeod-Smith 8/10 3156 days true 0.92 20%
Chris Marsh 6/10 3157 days true 0.8 18%
Jessica Lane 7/10 3157 days true 0.88 19%
Francis Corrigan 7/10 3161 days true 0.87 19%
Laura Smith 9/10 3173 days true 0.93 20%
Dean 8/10 3206 days true 0.83 18%
Berry 10/10 3233 days true 0.82 18%
Steve 9/10 3236 days true 0.81 18%
MaggieYChaChi 9/10 3313 days 0.66 14%
GenH 9/10 3436 days 0.42 9%
Allison Meyoz 9/10 3442 days true 0.41 9%
G Tulloch 9/10 3460 days true 0.37 8%
Stephen Hunt 9/10 3462 days true 0.37 8%
Thomas Klebensberger 10/10 3462 days true 0.37 8%
Therea 10/10 3465 days true 0.36 8%
Sean Brownell 7/10 3466 days true 0.33 7%
Laura Thrower 10/10 3471 days true 0.35 8%
David Taylor 9/10 3471 days true 0.35 8%
Stefan Schmitz 8/10 3479 days true 0.32 7%
Marii Joekalda 8/10 3480 days true 0.32 7%
Frank & Ruth 6/10 3481 days true 0.27 6%
Nathalie 10/10 3481 days true 0.33 7%
Jo Meekley 7/10 3481 days true 0.3 7%
Margit and Corein Groenevelt 8/10 3483 days true 0.31 7%
Judith 9/10 3483 days true 0.33 7%
Ven 8/10 3483 days true 0.31 7%
Florian 8/10 3487 days true 0.3 7%
Helen 9/10 3487 days true 0.32 7%
Juliane Kleiu 10/10 3487 days true 0.32 7%
Paula Dove 10/10 3487 days true 0.32 7%
Erin 8/10 3488 days true 0.3 7%
Walter Buschta 8/10 3488 days true 0.3 7%
Wouter Moui 6/10 3489 days true 0.26 6%
K Dahmer 8/10 3490 days true 0.3 7%
Jonathan Cree 9/10 3490 days true 0.31 7%
Laura Leigh 10/10 3490 days true 0.31 7%
Ann-Kathrin Auditor 10/10 3491 days true 0.31 7%
Katherine Forward 8/10 3491 days true 0.3 6%
Chris Ashton 10/10 3491 days true 0.31 7%
Jerry & Floon 7/10 3495 days true 0.28 6%
Hadar Zevulun 9/10 3496 days true 0.3 7%
Grumbach 9/10 3500 days true 0.29 6%
Caroline Sheridan 9/10 3501 days true 0.29 6%
Chris Darlington 10/10 3505 days true 0.28 6%
Cheryl 10/10 3515 days true 0.26 6%
Mark Aarts 9/10 3516 days true 0.26 6%
Samuel Prechel 8/10 3517 days true 0.25 5%
Dave and Lin Mungham 10/10 3518 days true 0.26 6%
Gordon Daniels 8/10 3520 days true 0.24 5%
Dr Dorthe Bossow 3/10 3521 days true 0.19 4%
Helen Gilbertson 8/10 3524 days true 0.23 5%
Doris Neuber 9/10 3524 days true 0.25 5%
Ashleigh Buckley 8/10 3525 days true 0.23 5%
PerspirationJournal 10/10 3617 days 0.06 1%
alku83 10/10 3617 days 0.06 1%
Mary Van 8/10 3678 days 0.0 0%
chloe1111 10/10 3801 days 0.0 0%
jenniferuk 9/10 3801 days true 0.0 0%
Peter and Hilda 10/10 3831 days true 0.0 0%
Einar 9/10 3850 days true 0.0 0%
Inbar Yizhar Barnea 8/10 3850 days true 0.0 0%
Tanya 9/10 3855 days true 0.0 0%
Jana Steve 10/10 3856 days true 0.0 0%
Yasmin Abrahams 7/10 3864 days true 0.0 0%
Barbara & Sven 10/10 3864 days true 0.0 0%
Judith 8/10 3868 days true 0.0 0%
Henrik Hougs 8/10 3870 days true 0.0 0%
Chris Glasg 9/10 3870 days true 0.0 0%
Michael 10/10 3872 days true 0.0 0%
Gary Ebrig 10/10 3875 days true 0.0 0%
Mathias 9/10 3877 days true 0.0 0%
Jamie 9/10 3882 days true 0.0 0%
David Hobson 8/10 3882 days true 0.0 0%
Christian 10/10 3882 days true 0.0 0%
vanijzendoor 8/10 3885 days true 0.0 0%
Dick Rosman 8/10 3886 days true 0.0 0%
Frances Hay 8/10 3889 days true 0.0 0%
Chance McGuire 10/10 3890 days 0.0 0%
Kevin and Teresa 8/10 3890 days true 0.0 0%
Ben Miklozek 9/10 3890 days true 0.0 0%
Marianne Lovdal 9/10 3890 days true 0.0 0%
Jessica 5/10 3895 days true 0.0 0%
S Luis Van Oler 6/10 3895 days true 0.0 0%
sophiep 8/10 3936 days true 0.0 0%
katharinatum 9/10 3936 days true 0.0 0%
koellner 6/10 3950 days true 0.0 0%
chrish1 9/10 3952 days true 0.0 0%
Fred Findlay 7/10 3964 days true 0.0 0%
maleta 9/10 3973 days true 0.0 0%
Gemma Morris 10/10 3975 days true 0.0 0%
TomL 10/10 3982 days 0.0 0%
Pauline Wan 7/10 3982 days 0.0 0%
eowyn2k 7/10 3982 days 0.0 0%
Suzanne 9/10 4013 days 0.0 0%
terryd 9/10 4074 days true 0.0 0%
kindel 6/10 4078 days true 0.0 0%
Emear Donnelly 10/10 4117 days true 0.0 0%
zoed 7/10 4151 days true 0.0 0%
steph_m 9/10 4166 days 0.0 0%
Charles Lyne 10/10 4166 days 0.0 0%
BenM1 7/10 4175 days true 0.0 0%
KimC 8/10 4184 days true 0.0 0%
JonK 8/10 4184 days true 0.0 0%
TschaneK 10/10 4186 days true 0.0 0%
RogerW 10/10 4188 days true 0.0 0%
NicolaW 10/10 4188 days true 0.0 0%
Lisa Duin 8/10 4194 days true 0.0 0%
Joanna Harrnon 9/10 4195 days true 0.0 0%
David 8/10 4196 days 0.0 0%
johnst 10/10 4196 days true 0.0 0%
Adi 10/10 4196 days true 0.0 0%
Sally477 9/10 4196 days 0.0 0%
Becca1 9/10 4198 days true 0.0 0%
Jelle 8/10 4199 days true 0.0 0%
Denys 8/10 4200 days true 0.0 0%
Ronny 9/10 4200 days true 0.0 0%
Viktoria Stoffel 10/10 4203 days true 0.0 0%
Jon Li 9/10 4208 days true 0.0 0%
Han Disveld 9/10 4208 days true 0.0 0%
BevanLisa 10/10 4213 days true 0.0 0%
SabineGermany 10/10 4214 days true 0.0 0%
StefanGermany1 9/10 4214 days true 0.0 0%
AnjaC 7/10 4214 days true 0.0 0%
AnjaChrist 7/10 4214 days true 0.0 0%
Torsten 9/10 4215 days true 0.0 0%
MarcoJ 8/10 4216 days true 0.0 0%
James O'Neil 10/10 4216 days true 0.0 0%
Barry Smith 10/10 4216 days true 0.0 0%
Siemens 8/10 4216 days true 0.0 0%
AlexH 10/10 4217 days true 0.0 0%
AnnickH 6/10 4218 days true 0.0 0%
Rene 8/10 4219 days true 0.0 0%
Dorothee 8/10 4219 days true 0.0 0%
Rob 7/10 4219 days true 0.0 0%
Mike 6/10 4220 days true 0.0 0%
TammyH 9/10 4222 days true 0.0 0%
Lynn White 7/10 4222 days 0.0 0%
Mette 8/10 4226 days true 0.0 0%
Axel 5/10 4226 days true 0.0 0%
amyd 8/10 4227 days 0.0 0%
Susan 9/10 4228 days true 0.0 0%
lannie 5/10 4229 days true 0.0 0%
XaviG 9/10 4230 days true 0.0 0%
ChenM 8/10 4230 days true 0.0 0%
Steven 9/10 4230 days true 0.0 0%
CarleyJ 8/10 4230 days true 0.0 0%
JesusB 7/10 4230 days true 0.0 0%
GingerPrince 9/10 4230 days true 0.0 0%
Steve 10/10 4230 days true 0.0 0%
Claudia 9/10 4232 days true 0.0 0%
Pascal 8/10 4232 days true 0.0 0%
Karen 9/10 4235 days true 0.0 0%
RandiL 7/10 4238 days true 0.0 0%
IreneF 9/10 4239 days true 0.0 0%
Rachel 8/10 4245 days true 0.0 0%
Adi 10/10 4245 days true 0.0 0%
Claire 8/10 4245 days true 0.0 0%
Philippa 9/10 4246 days true 0.0 0%
Conway 9/10 4246 days true 0.0 0%
orianne 10/10 4252 days 0.0 0%
Caroline 7/10 4253 days true 0.0 0%
Eike 9/10 4260 days true 0.0 0%
Benni 7/10 4262 days true 0.0 0%
John 6/10 4265 days true 0.0 0%
Dan 9/10 4269 days true 0.0 0%
Sally 9/10 4269 days true 0.0 0%
Rosa 4/10 4269 days true 0.0 0%
Sascha 7/10 4270 days true 0.0 0%
Dassel 8/10 4270 days true 0.0 0%
Eric 3/10 4271 days true 0.0 0%
Charlie 9/10 4276 days true 0.0 0%
tommfuller 7/10 4280 days 0.0 0%
Anouk 9/10 4308 days true 0.0 0%
MissTraveller2009 10/10 4317 days 0.0 0%
David 9/10 4321 days true 0.0 0%
Laura 9/10 4321 days true 0.0 0%
Adam 8/10 4326 days true 0.0 0%
mike brett 7/10 4330 days 0.0 0%
georgepearse 9/10 4367 days 0.0 0%
Aoife 8/10 4370 days true 0.0 0%
Davina 8/10 4371 days true 0.0 0%
Kath 10/10 4373 days true 0.0 0%
Kate 8/10 4382 days true 0.0 0%
Brenda 8/10 4382 days true 0.0 0%
Amy 8/10 4391 days true 0.0 0%
Katie 10/10 4391 days true 0.0 0%
Christoffer 10/10 4393 days true 0.0 0%
Rebecca 9/10 4393 days true 0.0 0%
Suyin 10/10 4393 days true 0.0 0%
Sarah 6/10 4402 days true 0.0 0%
Michaela 9/10 4406 days true 0.0 0%
Christopher 6/10 4406 days true 0.0 0%
James 8/10 4406 days true 0.0 0%
Sam Prior 8/10 4411 days true 0.0 0%
jillian 8/10 4415 days true 0.0 0%
George Burgas 9/10 4420 days true 0.0 0%
stain weedman 6/10 4426 days 0.0 0%
Sharon Curly 9/10 4428 days true 0.0 0%
Peddy 7/10 4432 days 0.0 0%
Tim 5/10 4448 days true 0.0 0%
Thomas Fillary 9/10 4464 days 0.0 0%
Sjoerd 8/10 4470 days true 0.0 0%
Gemma Harling 9/10 4470 days true 0.0 0%
Charlie Bond 9/10 4477 days true 0.0 0%
Florencia Cortese 10/10 4538 days true 0.0 0%
Meike Biel 7/10 4546 days true 0.0 0%
Helen 9/10 4546 days true 0.0 0%
Ellie 9/10 4558 days 0.0 0%
Daniel 7/10 4576 days true 0.0 0%
Omer Harron 9/10 4576 days true 0.0 0%
Yayami Kimura 10/10 4579 days true 0.0 0%
Kieran Concarr 9/10 4579 days true 0.0 0%
Christian 8/10 4583 days true 0.0 0%
Kathrin 9/10 4587 days true 0.0 0%
Andreas Brett 8/10 4589 days true 0.0 0%
Kristine Clemmensen Rotne 7/10 4589 days true 0.0 0%
helga 6/10 4589 days 0.0 0%
Emily Houston 10/10 4593 days true 0.0 0%
Hannah Holmes 8/10 4596 days true 0.0 0%
Lisa Tame 9/10 4597 days true 0.0 0%
Kelly 9/10 4600 days true 0.0 0%
Stephanie 10/10 4608 days true 0.0 0%
Sayaka 7/10 4608 days true 0.0 0%
Marc Hertogs 8/10 4612 days true 0.0 0%
Tanya Berthoud 9/10 4614 days true 0.0 0%
Van Hoof 8/10 4636 days true 0.0 0%
Berger 8/10 4643 days true 0.0 0%
Travis Brennan 9/10 4655 days 0.0 0%
Alexis 10/10 4670 days true 0.0 0%
Martine Arsac 5/10 4678 days true 0.0 0%
Frida 8/10 4680 days true 0.0 0%
Ben 10/10 4681 days true 0.0 0%
Wendy Williams 8/10 4688 days true 0.0 0%
Charlie Wilson 10/10 4763 days true 0.0 0%
Ian Coldrake 8/10 4763 days true 0.0 0%
Jill Bourke 10/10 4768 days true 0.0 0%
Andy Chapman 8/10 4798 days true 0.0 0%
Shelley 10/10 4903 days true 0.0 0%
Will 9/10 4912 days true 0.0 0%
Michael 9/10 4914 days true 0.0 0%
Sue 8/10 4914 days true 0.0 0%
Stefan 8/10 4917 days true 0.0 0%
Jenny 8/10 4920 days true 0.0 0%
Kate 8/10 4922 days true 0.0 0%
Paul Yacoumis 7/10 4924 days true 0.0 0%
Kathryn 9/10 4929 days true 0.0 0%
Celia 9/10 4931 days true 0.0 0%
Annelte 4/10 4932 days true 0.0 0%
IdanNakash 8/10 4932 days true 0.0 0%
Martin Christina 9/10 4932 days true 0.0 0%
Chris 8/10 4933 days true 0.0 0%
Janneke 8/10 4933 days true 0.0 0%
Sue Robertson 10/10 4935 days true 0.0 0%
Fenke 7/10 4938 days true 0.0 0%
Bas 7/10 4938 days true 0.0 0%
Daniel 9/10 4940 days true 0.0 0%
Susan 6/10 4946 days true 0.0 0%
ErikVanDam 9/10 4952 days true 0.0 0%
MariaNorman 9/10 4952 days true 0.0 0%
MarcHarris 8/10 4952 days true 0.0 0%
Helena 10/10 4952 days true 0.0 0%
Sarah 10/10 4961 days true 0.0 0%
beesom 8/10 4962 days true 0.0 0%
Peter 5/10 4966 days true 0.0 0%
Sonja 7/10 4973 days true 0.0 0%
Leah 8/10 4974 days true 0.0 0%
Sarah 10/10 4994 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

-3.18% 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 -3.14%
198 -3.15%
199 -3.17%
200 -3.18%
201 -3.20%
202 -3.22%
203 -3.23%

Final Ranking Score

82%

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.