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

85.93%

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 10/10 951 days true 8.29 100%
Jessica Freeland 10/10 1012 days true 6.09 74%
Nanna Overbeck 10/10 1024 days true 5.8 70%
Joe Rogers 9/10 1305 days true 4.64 56%
Nicola Wiggan 9/10 1374 days true 4.52 55%
Ben McDougal 10/10 1396 days true 4.48 54%
Maria Schober 5/10 1683 days true 3.23 39%
Helen Parsons 1/10 1691 days true 2.91 35%
Elisa Felising 7/10 1691 days true 3.62 44%
Claudia de Winter 9/10 2003 days true 3.45 42%
Penny Lee 9/10 2005 days true 3.44 42%
Jeroen Suijlang 8/10 2005 days true 3.27 39%
Ludvig Fagerstrom 8/10 2079 days true 3.15 38%
Marco Schmidt 10/10 2376 days true 2.81 34%
Christian Schumacher 10/10 2376 days true 2.81 34%
Jennifer Bramstad 8/10 2396 days true 2.63 32%
Evelina Johansson 8/10 2396 days true 2.63 32%
Sofia Anderson 10/10 2396 days true 2.77 33%
Steve 5/10 2397 days 2.24 27%
Janine Kohlgrueler 9/10 2404 days true 2.76 33%
Fraser Goldsmith 9/10 2421 days true 2.73 33%
Nigel Leighton 10/10 2475 days true 2.64 32%
Jonathan Vondette 7/10 2478 days true 2.39 29%
Andreas and Christine and Nora Busch 10/10 2486 days true 2.62 32%
lavonc 3/10 2517 days 1.98 24%
peterpiper 10/10 2701 days 2.25 27%
sandytemp22 10/10 2731 days 2.2 27%
Laura vanGool 10/10 2747 days true 2.17 26%
Barbara Berkhout 7/10 2747 days true 1.98 24%
Jurgen Joyce 8/10 2754 days true 2.05 25%
Carole Carter 9/10 2754 days true 2.16 26%
Sabrina Germany 9/10 2757 days true 2.15 26%
J Jmal 10/10 2758 days true 2.15 26%
Malena 10/10 2762 days 2.15 26%
Erik 10/10 2764 days true 2.14 26%
Marion Hassink 8/10 2768 days true 2.03 24%
Baas 8/10 2771 days true 2.02 24%
Barbara 10/10 2772 days true 2.13 26%
Rebecca Richardson 8/10 2773 days true 2.02 24%
Andrew Powell 7/10 2773 days true 1.94 23%
Andy Bridgman 8/10 2776 days true 2.02 24%
Aoife Lillis 7/10 2779 days true 1.93 23%
Rainer Schnell 8/10 2783 days true 2.0 24%
Filsack 8/10 2783 days true 2.0 24%
Hazel 10/10 2784 days true 2.11 25%
Frank Waskikowski 9/10 2785 days true 2.11 25%
Andreas Kristiansen 9/10 2785 days true 2.11 25%
Robert MacLeod-Smith 8/10 2787 days true 2.0 24%
Chris Marsh 6/10 2788 days true 1.74 21%
Jessica Lane 7/10 2788 days true 1.91 23%
Francis Corrigan 7/10 2792 days true 1.91 23%
Laura Smith 9/10 2804 days true 2.07 25%
Dean 8/10 2837 days true 1.92 23%
Berry 10/10 2864 days true 1.97 24%
Steve 9/10 2867 days true 1.97 24%
MaggieYChaChi 9/10 2944 days 1.83 22%
GenH 9/10 3067 days 1.62 20%
Allison Meyoz 9/10 3073 days true 1.61 19%
G Tulloch 9/10 3091 days true 1.58 19%
Stephen Hunt 9/10 3093 days true 1.58 19%
Thomas Klebensberger 10/10 3093 days true 1.58 19%
Therea 10/10 3096 days true 1.57 19%
Sean Brownell 7/10 3097 days true 1.43 17%
Laura Thrower 10/10 3102 days true 1.56 19%
David Taylor 9/10 3102 days true 1.56 19%
Stefan Schmitz 8/10 3110 days true 1.47 18%
Marii Joekalda 8/10 3111 days true 1.47 18%
Frank & Ruth 6/10 3112 days true 1.28 15%
Nathalie 10/10 3112 days true 1.55 19%
Jo Meekley 7/10 3112 days true 1.41 17%
Margit and Corein Groenevelt 8/10 3114 days true 1.47 18%
Judith 9/10 3114 days true 1.54 19%
Ven 8/10 3114 days true 1.47 18%
Florian 8/10 3118 days true 1.46 18%
Helen 9/10 3118 days true 1.54 19%
Juliane Kleiu 10/10 3118 days true 1.54 19%
Paula Dove 10/10 3118 days true 1.54 19%
Erin 8/10 3119 days true 1.46 18%
Walter Buschta 8/10 3119 days true 1.46 18%
Wouter Moui 6/10 3120 days true 1.27 15%
K Dahmer 8/10 3121 days true 1.45 18%
Jonathan Cree 9/10 3121 days true 1.53 18%
Laura Leigh 10/10 3121 days true 1.53 18%
Ann-Kathrin Auditor 10/10 3122 days true 1.53 18%
Katherine Forward 8/10 3122 days true 1.45 18%
Chris Ashton 10/10 3122 days true 1.53 18%
Jerry & Floon 7/10 3126 days true 1.39 17%
Hadar Zevulun 9/10 3127 days true 1.52 18%
Grumbach 9/10 3131 days true 1.51 18%
Caroline Sheridan 9/10 3132 days true 1.51 18%
Chris Darlington 10/10 3136 days true 1.51 18%
Cheryl 10/10 3146 days true 1.49 18%
Mark Aarts 9/10 3147 days true 1.49 18%
Samuel Prechel 8/10 3148 days true 1.41 17%
Dave and Lin Mungham 10/10 3149 days true 1.48 18%
Gordon Daniels 8/10 3151 days true 1.41 17%
Dr Dorthe Bossow 3/10 3152 days true 1.14 14%
Helen Gilbertson 8/10 3155 days true 1.4 17%
Doris Neuber 9/10 3155 days true 1.47 18%
Ashleigh Buckley 8/10 3156 days true 1.4 17%
PerspirationJournal 10/10 3248 days 1.31 16%
alku83 10/10 3248 days 1.31 16%
Mary Van 8/10 3309 days 1.15 14%
chloe1111 10/10 3432 days 1.0 12%
jenniferuk 9/10 3432 days true 1.0 12%
Peter and Hilda 10/10 3462 days true 0.95 11%
Einar 9/10 3481 days true 0.91 11%
Inbar Yizhar Barnea 8/10 3481 days true 0.87 10%
Tanya 9/10 3486 days true 0.91 11%
Jana Steve 10/10 3487 days true 0.9 11%
Yasmin Abrahams 7/10 3495 days true 0.81 10%
Barbara & Sven 10/10 3495 days true 0.89 11%
Judith 8/10 3499 days true 0.84 10%
Henrik Hougs 8/10 3501 days true 0.84 10%
Chris Glasg 9/10 3501 days true 0.88 11%
Michael 10/10 3503 days true 0.88 11%
Gary Ebrig 10/10 3506 days true 0.87 11%
Mathias 9/10 3508 days true 0.87 10%
Jamie 9/10 3513 days true 0.86 10%
David Hobson 8/10 3513 days true 0.82 10%
Christian 10/10 3513 days true 0.86 10%
vanijzendoor 8/10 3516 days true 0.81 10%
Dick Rosman 8/10 3517 days true 0.81 10%
Frances Hay 8/10 3520 days true 0.81 10%
Chance McGuire 10/10 3521 days 0.85 10%
Kevin and Teresa 8/10 3521 days true 0.8 10%
Ben Miklozek 9/10 3521 days true 0.85 10%
Marianne Lovdal 9/10 3521 days true 0.85 10%
Jessica 5/10 3526 days true 0.68 8%
S Luis Van Oler 6/10 3526 days true 0.69 8%
sophiep 8/10 3567 days true 0.73 9%
katharinatum 9/10 3567 days true 0.77 9%
koellner 6/10 3581 days true 0.62 7%
chrish1 9/10 3583 days true 0.74 9%
Fred Findlay 7/10 3595 days true 0.65 8%
maleta 9/10 3604 days true 0.7 8%
Gemma Morris 10/10 3606 days true 0.7 8%
TomL 10/10 3613 days 0.69 8%
Pauline Wan 7/10 3613 days 0.63 8%
eowyn2k 7/10 3613 days 0.63 8%
Suzanne 9/10 3644 days 0.64 8%
terryd 9/10 3705 days true 0.53 6%
kindel 6/10 3709 days true 0.43 5%
Emear Donnelly 10/10 3748 days true 0.46 6%
zoed 7/10 3782 days true 0.36 4%
steph_m 9/10 3797 days 0.37 5%
Charles Lyne 10/10 3797 days 0.37 5%
BenM1 7/10 3806 days true 0.33 4%
KimC 8/10 3815 days true 0.33 4%
JonK 8/10 3815 days true 0.33 4%
TschaneK 10/10 3817 days true 0.34 4%
RogerW 10/10 3819 days true 0.34 4%
NicolaW 10/10 3819 days true 0.34 4%
Lisa Duin 8/10 3825 days true 0.31 4%
Joanna Harrnon 9/10 3826 days true 0.32 4%
David 8/10 3827 days 0.31 4%
johnst 10/10 3827 days true 0.32 4%
Adi 10/10 3827 days true 0.32 4%
Sally477 9/10 3828 days 0.32 4%
Becca1 9/10 3829 days true 0.32 4%
Jelle 8/10 3830 days true 0.3 4%
Denys 8/10 3831 days true 0.3 4%
Ronny 9/10 3831 days true 0.32 4%
Viktoria Stoffel 10/10 3834 days true 0.31 4%
Jon Li 9/10 3839 days true 0.3 4%
Han Disveld 9/10 3839 days true 0.3 4%
BevanLisa 10/10 3844 days true 0.29 4%
SabineGermany 10/10 3845 days true 0.29 4%
StefanGermany1 9/10 3845 days true 0.29 4%
AnjaC 7/10 3845 days true 0.26 3%
AnjaChrist 7/10 3845 days true 0.26 3%
Torsten 9/10 3846 days true 0.29 3%
MarcoJ 8/10 3847 days true 0.27 3%
James O'Neil 10/10 3847 days true 0.29 3%
Barry Smith 10/10 3847 days true 0.29 3%
Siemens 8/10 3847 days true 0.27 3%
AlexH 10/10 3848 days true 0.29 3%
AnnickH 6/10 3849 days true 0.24 3%
Rene 8/10 3851 days true 0.27 3%
Dorothee 8/10 3851 days true 0.27 3%
Rob 7/10 3851 days true 0.26 3%
Mike 6/10 3851 days true 0.23 3%
TammyH 9/10 3853 days true 0.28 3%
Lynn White 7/10 3854 days 0.25 3%
Mette 8/10 3858 days true 0.26 3%
Axel 5/10 3858 days true 0.22 3%
amyd 8/10 3858 days 0.26 3%
Susan 9/10 3860 days true 0.27 3%
lannie 5/10 3861 days true 0.21 3%
XaviG 9/10 3861 days true 0.26 3%
ChenM 8/10 3861 days true 0.25 3%
Steven 9/10 3861 days true 0.26 3%
CarleyJ 8/10 3861 days true 0.25 3%
JesusB 7/10 3861 days true 0.24 3%
GingerPrince 9/10 3861 days true 0.26 3%
Steve 10/10 3861 days true 0.26 3%
Claudia 9/10 3864 days true 0.26 3%
Pascal 8/10 3864 days true 0.25 3%
Karen 9/10 3866 days true 0.26 3%
RandiL 7/10 3869 days true 0.23 3%
IreneF 9/10 3870 days true 0.25 3%
Rachel 8/10 3877 days true 0.22 3%
Adi 10/10 3877 days true 0.24 3%
Claire 8/10 3877 days true 0.22 3%
Philippa 9/10 3878 days true 0.23 3%
Conway 9/10 3878 days true 0.23 3%
orianne 10/10 3884 days 0.22 3%
Caroline 7/10 3884 days true 0.2 2%
Eike 9/10 3892 days true 0.21 3%
Benni 7/10 3893 days true 0.19 2%
John 6/10 3896 days true 0.17 2%
Dan 9/10 3900 days true 0.2 2%
Sally 9/10 3900 days true 0.2 2%
Rosa 4/10 3900 days true 0.16 2%
Sascha 7/10 3901 days true 0.18 2%
Dassel 8/10 3901 days true 0.19 2%
Eric 3/10 3903 days true 0.15 2%
Charlie 9/10 3908 days true 0.18 2%
tommfuller 7/10 3911 days 0.16 2%
Anouk 9/10 3940 days true 0.13 2%
MissTraveller2009 10/10 3948 days 0.11 1%
David 9/10 3953 days true 0.11 1%
Laura 9/10 3953 days true 0.11 1%
Adam 8/10 3958 days true 0.09 1%
mike brett 7/10 3961 days 0.08 1%
georgepearse 9/10 3999 days 0.03 0%
Aoife 8/10 4002 days true 0.02 0%
Davina 8/10 4002 days true 0.02 0%
Kath 10/10 4005 days true 0.02 0%
Kate 8/10 4013 days true 0.0 0%
Brenda 8/10 4014 days true 0.0 0%
Amy 8/10 4023 days true 0.0 0%
Katie 10/10 4023 days true 0.0 0%
Christoffer 10/10 4025 days true 0.0 0%
Rebecca 9/10 4025 days true 0.0 0%
Suyin 10/10 4025 days true 0.0 0%
Sarah 6/10 4034 days true 0.0 0%
Michaela 9/10 4038 days true 0.0 0%
Christopher 6/10 4038 days true 0.0 0%
James 8/10 4038 days true 0.0 0%
Sam Prior 8/10 4043 days true 0.0 0%
jillian 8/10 4047 days true 0.0 0%
George Burgas 9/10 4052 days true 0.0 0%
stain weedman 6/10 4057 days 0.0 0%
Sharon Curly 9/10 4060 days true 0.0 0%
Peddy 7/10 4064 days 0.0 0%
Tim 5/10 4079 days true 0.0 0%
Thomas Fillary 9/10 4096 days 0.0 0%
Sjoerd 8/10 4102 days true 0.0 0%
Gemma Harling 9/10 4102 days true 0.0 0%
Charlie Bond 9/10 4109 days true 0.0 0%
Florencia Cortese 10/10 4169 days true 0.0 0%
Meike Biel 7/10 4177 days true 0.0 0%
Helen 9/10 4177 days true 0.0 0%
Ellie 9/10 4190 days 0.0 0%
Daniel 7/10 4207 days true 0.0 0%
Omer Harron 9/10 4207 days true 0.0 0%
Yayami Kimura 10/10 4210 days true 0.0 0%
Kieran Concarr 9/10 4210 days true 0.0 0%
Christian 8/10 4214 days true 0.0 0%
Kathrin 9/10 4218 days true 0.0 0%
Andreas Brett 8/10 4220 days true 0.0 0%
Kristine Clemmensen Rotne 7/10 4220 days true 0.0 0%
helga 6/10 4221 days 0.0 0%
Emily Houston 10/10 4224 days true 0.0 0%
Hannah Holmes 8/10 4227 days true 0.0 0%
Lisa Tame 9/10 4228 days true 0.0 0%
Kelly 9/10 4231 days true 0.0 0%
Stephanie 10/10 4239 days true 0.0 0%
Sayaka 7/10 4239 days true 0.0 0%
Marc Hertogs 8/10 4243 days true 0.0 0%
Tanya Berthoud 9/10 4245 days true 0.0 0%
Van Hoof 8/10 4267 days true 0.0 0%
Berger 8/10 4274 days true 0.0 0%
Travis Brennan 9/10 4287 days 0.0 0%
Alexis 10/10 4301 days true 0.0 0%
Martine Arsac 5/10 4309 days true 0.0 0%
Frida 8/10 4311 days true 0.0 0%
Ben 10/10 4312 days true 0.0 0%
Wendy Williams 8/10 4319 days true 0.0 0%
Charlie Wilson 10/10 4394 days true 0.0 0%
Ian Coldrake 8/10 4394 days true 0.0 0%
Jill Bourke 10/10 4399 days true 0.0 0%
Andy Chapman 8/10 4429 days true 0.0 0%
Shelley 10/10 4534 days true 0.0 0%
Will 9/10 4543 days true 0.0 0%
Michael 9/10 4545 days true 0.0 0%
Sue 8/10 4545 days true 0.0 0%
Stefan 8/10 4548 days true 0.0 0%
Jenny 8/10 4551 days true 0.0 0%
Kate 8/10 4553 days true 0.0 0%
Paul Yacoumis 7/10 4555 days true 0.0 0%
Kathryn 9/10 4560 days true 0.0 0%
Celia 9/10 4562 days true 0.0 0%
Annelte 4/10 4563 days true 0.0 0%
IdanNakash 8/10 4563 days true 0.0 0%
Martin Christina 9/10 4563 days true 0.0 0%
Chris 8/10 4564 days true 0.0 0%
Janneke 8/10 4564 days true 0.0 0%
Sue Robertson 10/10 4566 days true 0.0 0%
Fenke 7/10 4569 days true 0.0 0%
Bas 7/10 4569 days true 0.0 0%
Daniel 9/10 4571 days true 0.0 0%
Susan 6/10 4577 days true 0.0 0%
ErikVanDam 9/10 4583 days true 0.0 0%
MariaNorman 9/10 4583 days true 0.0 0%
MarcHarris 8/10 4583 days true 0.0 0%
Helena 10/10 4583 days true 0.0 0%
Sarah 10/10 4592 days true 0.0 0%
beesom 8/10 4593 days true 0.0 0%
Peter 5/10 4597 days true 0.0 0%
Sonja 7/10 4604 days true 0.0 0%
Leah 8/10 4605 days true 0.0 0%
Sarah 10/10 4625 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

-3.98% Adjustment

There may be an adjustment if an 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 199 days.

The Franz Josef Glacier Guides experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

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.