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

85.58%

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 10/10 735 days true 30.64 100%
Jessica Freeland 10/10 796 days true 23.0 75%
Nanna Overbeck 10/10 808 days true 21.66 70%
Joe Rogers 9/10 1089 days true 6.01 18%
Nicola Wiggan 9/10 1158 days true 5.9 18%
Ben McDougal 10/10 1180 days true 5.86 18%
Maria Schober 5/10 1467 days true 5.39 16%
Helen Parsons 1/10 1475 days true 4.7 14%
Elisa Felising 7/10 1475 days true 5.38 16%
Claudia de Winter 9/10 1787 days true 4.86 14%
Penny Lee 9/10 1789 days true 4.86 14%
Jeroen Suijlang 8/10 1789 days true 4.86 14%
Ludvig Fagerstrom 8/10 1863 days true 4.74 14%
Marco Schmidt 10/10 2160 days true 4.25 12%
Christian Schumacher 10/10 2160 days true 4.25 12%
Jennifer Bramstad 8/10 2180 days true 4.22 12%
Evelina Johansson 8/10 2180 days true 4.22 12%
Sofia Anderson 10/10 2180 days true 4.22 12%
Steve 5/10 2181 days 3.51 10%
Janine Kohlgrueler 9/10 2188 days true 4.2 12%
Fraser Goldsmith 9/10 2205 days true 4.18 12%
Nigel Leighton 10/10 2259 days true 4.09 12%
Jonathan Vondette 7/10 2262 days true 4.08 12%
Andreas and Christine and Nora Busch 10/10 2270 days true 4.07 12%
lavonc 3/10 2301 days 3.05 8%
peterpiper 10/10 2485 days 3.1 8%
sandytemp22 10/10 2515 days 3.05 8%
Laura vanGool 10/10 2531 days true 3.64 10%
Barbara Berkhout 7/10 2531 days true 3.64 10%
Jurgen Joyce 8/10 2538 days true 3.63 10%
Carole Carter 9/10 2538 days true 3.63 10%
Sabrina Germany 9/10 2541 days true 3.62 10%
J Jmal 10/10 2542 days true 3.62 10%
Malena 10/10 2546 days 3.01 8%
Erik 10/10 2548 days true 3.61 10%
Marion Hassink 8/10 2552 days true 3.6 10%
Baas 8/10 2555 days true 3.6 10%
Barbara 10/10 2556 days true 3.6 10%
Rebecca Richardson 8/10 2557 days true 3.6 10%
Andrew Powell 7/10 2557 days true 3.6 10%
Andy Bridgman 8/10 2560 days true 3.59 10%
Aoife Lillis 7/10 2563 days true 3.59 10%
Rainer Schnell 8/10 2567 days true 3.58 10%
Filsack 8/10 2567 days true 3.58 10%
Hazel 10/10 2568 days true 3.58 10%
Frank Waskikowski 9/10 2569 days true 3.58 10%
Andreas Kristiansen 9/10 2569 days true 3.58 10%
Robert MacLeod-Smith 8/10 2571 days true 3.57 10%
Chris Marsh 6/10 2572 days true 3.57 10%
Jessica Lane 7/10 2572 days true 3.57 10%
Francis Corrigan 7/10 2576 days true 3.57 10%
Laura Smith 9/10 2588 days true 3.55 10%
Dean 8/10 2621 days true 3.49 10%
Berry 10/10 2648 days true 3.45 10%
Steve 9/10 2651 days true 3.44 10%
MaggieYChaChi 9/10 2728 days 2.76 7%
GenH 9/10 2851 days 2.59 7%
Allison Meyoz 9/10 2857 days true 3.1 8%
G Tulloch 9/10 2875 days true 3.07 8%
Stephen Hunt 9/10 2877 days true 3.07 8%
Thomas Klebensberger 10/10 2877 days true 3.07 8%
Therea 10/10 2880 days true 3.07 8%
Sean Brownell 7/10 2881 days true 3.06 8%
Laura Thrower 10/10 2886 days true 3.06 8%
David Taylor 9/10 2886 days true 3.06 8%
Stefan Schmitz 8/10 2894 days true 3.04 8%
Marii Joekalda 8/10 2895 days true 3.04 8%
Frank & Ruth 6/10 2896 days true 3.04 8%
Nathalie 10/10 2896 days true 3.04 8%
Jo Meekley 7/10 2896 days true 3.04 8%
Margit and Corein Groenevelt 8/10 2898 days true 3.04 8%
Judith 9/10 2898 days true 3.04 8%
Ven 8/10 2898 days true 3.04 8%
Florian 8/10 2902 days true 3.03 8%
Helen 9/10 2902 days true 3.03 8%
Juliane Kleiu 10/10 2902 days true 3.03 8%
Paula Dove 10/10 2902 days true 3.03 8%
Erin 8/10 2903 days true 3.03 8%
Walter Buschta 8/10 2903 days true 3.03 8%
Wouter Moui 6/10 2904 days true 3.03 8%
K Dahmer 8/10 2905 days true 3.02 8%
Jonathan Cree 9/10 2905 days true 3.02 8%
Laura Leigh 10/10 2905 days true 3.02 8%
Ann-Kathrin Auditor 10/10 2906 days true 3.02 8%
Katherine Forward 8/10 2906 days true 3.02 8%
Chris Ashton 10/10 2906 days true 3.02 8%
Jerry & Floon 7/10 2910 days true 3.02 8%
Hadar Zevulun 9/10 2911 days true 3.01 8%
Grumbach 9/10 2915 days true 3.01 8%
Caroline Sheridan 9/10 2916 days true 3.01 8%
Chris Darlington 10/10 2920 days true 3.0 8%
Cheryl 10/10 2930 days true 2.98 8%
Mark Aarts 9/10 2931 days true 2.98 8%
Samuel Prechel 8/10 2932 days true 2.98 8%
Dave and Lin Mungham 10/10 2933 days true 2.98 8%
Gordon Daniels 8/10 2935 days true 2.98 8%
Dr Dorthe Bossow 3/10 2936 days true 2.75 7%
Helen Gilbertson 8/10 2939 days true 2.97 8%
Doris Neuber 9/10 2939 days true 2.97 8%
Ashleigh Buckley 8/10 2940 days true 2.97 8%
PerspirationJournal 10/10 3032 days 2.35 6%
alku83 10/10 3032 days 2.35 6%
Mary Van 8/10 3093 days 2.26 6%
chloe1111 10/10 3216 days 2.09 5%
jenniferuk 9/10 3216 days true 2.51 7%
Peter and Hilda 10/10 3246 days true 2.46 6%
Einar 9/10 3265 days true 2.43 6%
Inbar Yizhar Barnea 8/10 3265 days true 2.43 6%
Tanya 9/10 3270 days true 2.42 6%
Jana Steve 10/10 3271 days true 2.42 6%
Yasmin Abrahams 7/10 3279 days true 2.41 6%
Barbara & Sven 10/10 3279 days true 2.41 6%
Judith 8/10 3283 days true 2.4 6%
Henrik Hougs 8/10 3285 days true 2.4 6%
Chris Glasg 9/10 3285 days true 2.4 6%
Michael 10/10 3287 days true 2.4 6%
Gary Ebrig 10/10 3290 days true 2.39 6%
Mathias 9/10 3292 days true 2.39 6%
Jamie 9/10 3297 days true 2.38 6%
David Hobson 8/10 3297 days true 2.38 6%
Christian 10/10 3297 days true 2.38 6%
vanijzendoor 8/10 3300 days true 2.38 6%
Dick Rosman 8/10 3301 days true 2.37 6%
Frances Hay 8/10 3304 days true 2.37 6%
Chance McGuire 10/10 3305 days 1.97 5%
Kevin and Teresa 8/10 3305 days true 2.37 6%
Ben Miklozek 9/10 3305 days true 2.37 6%
Marianne Lovdal 9/10 3305 days true 2.37 6%
Jessica 5/10 3310 days true 2.36 6%
S Luis Van Oler 6/10 3310 days true 2.36 6%
sophiep 8/10 3351 days true 2.29 6%
katharinatum 9/10 3351 days true 2.29 6%
koellner 6/10 3365 days true 2.27 6%
chrish1 9/10 3367 days true 2.27 6%
Fred Findlay 7/10 3379 days true 2.25 6%
maleta 9/10 3388 days true 2.23 6%
Gemma Morris 10/10 3390 days true 2.23 6%
TomL 10/10 3397 days 1.85 4%
Pauline Wan 7/10 3397 days 1.85 4%
eowyn2k 7/10 3397 days 1.85 4%
Suzanne 9/10 3428 days 1.8 4%
terryd 9/10 3489 days true 2.06 5%
kindel 6/10 3493 days true 2.06 5%
Emear Donnelly 10/10 3532 days true 1.99 5%
zoed 7/10 3566 days true 1.94 5%
steph_m 9/10 3581 days 1.59 3%
Charles Lyne 10/10 3581 days 1.59 3%
BenM1 7/10 3590 days true 1.9 4%
KimC 8/10 3599 days true 1.88 4%
JonK 8/10 3599 days true 1.88 4%
TschaneK 10/10 3601 days true 1.88 4%
RogerW 10/10 3603 days true 1.88 4%
NicolaW 10/10 3603 days true 1.88 4%
Lisa Duin 8/10 3609 days true 1.87 4%
Joanna Harrnon 9/10 3610 days true 1.87 4%
David 8/10 3611 days 1.55 3%
johnst 10/10 3611 days true 1.86 4%
Adi 10/10 3611 days true 1.86 4%
Sally477 9/10 3612 days 1.55 3%
Becca1 9/10 3613 days true 1.86 4%
Jelle 8/10 3614 days true 1.86 4%
Denys 8/10 3615 days true 1.86 4%
Ronny 9/10 3615 days true 1.86 4%
Viktoria Stoffel 10/10 3618 days true 1.85 4%
Jon Li 9/10 3623 days true 1.84 4%
Han Disveld 9/10 3623 days true 1.84 4%
BevanLisa 10/10 3628 days true 1.84 4%
SabineGermany 10/10 3629 days true 1.83 4%
StefanGermany1 9/10 3629 days true 1.83 4%
AnjaC 7/10 3629 days true 1.83 4%
AnjaChrist 7/10 3629 days true 1.83 4%
Torsten 9/10 3630 days true 1.83 4%
MarcoJ 8/10 3631 days true 1.83 4%
James O'Neil 10/10 3631 days true 1.83 4%
Barry Smith 10/10 3631 days true 1.83 4%
Siemens 8/10 3631 days true 1.83 4%
AlexH 10/10 3632 days true 1.83 4%
AnnickH 6/10 3633 days true 1.83 4%
Rene 8/10 3634 days true 1.83 4%
Dorothee 8/10 3634 days true 1.83 4%
Rob 7/10 3634 days true 1.83 4%
Mike 6/10 3635 days true 1.82 4%
TammyH 9/10 3637 days true 1.82 4%
Lynn White 7/10 3637 days 1.52 3%
Mette 8/10 3641 days true 1.81 4%
Axel 5/10 3641 days true 1.81 4%
amyd 8/10 3642 days 1.51 3%
Susan 9/10 3643 days true 1.81 4%
lannie 5/10 3644 days true 1.81 4%
XaviG 9/10 3645 days true 1.81 4%
ChenM 8/10 3645 days true 1.81 4%
Steven 9/10 3645 days true 1.81 4%
CarleyJ 8/10 3645 days true 1.81 4%
JesusB 7/10 3645 days true 1.81 4%
GingerPrince 9/10 3645 days true 1.81 4%
Steve 10/10 3645 days true 1.81 4%
Claudia 9/10 3647 days true 1.8 4%
Pascal 8/10 3647 days true 1.8 4%
Karen 9/10 3650 days true 1.8 4%
RandiL 7/10 3653 days true 1.8 4%
IreneF 9/10 3654 days true 1.79 4%
Rachel 8/10 3660 days true 1.78 4%
Adi 10/10 3660 days true 1.78 4%
Claire 8/10 3660 days true 1.78 4%
Philippa 9/10 3661 days true 1.78 4%
Conway 9/10 3661 days true 1.78 4%
orianne 10/10 3668 days 1.48 3%
Caroline 7/10 3668 days true 1.77 4%
Eike 9/10 3675 days true 1.76 4%
Benni 7/10 3677 days true 1.76 4%
John 6/10 3680 days true 1.75 4%
Dan 9/10 3684 days true 1.74 4%
Sally 9/10 3684 days true 1.74 4%
Rosa 4/10 3684 days true 1.64 4%
Sascha 7/10 3685 days true 1.74 4%
Dassel 8/10 3685 days true 1.74 4%
Eric 3/10 3686 days true 1.61 4%
Charlie 9/10 3691 days true 1.73 4%
tommfuller 7/10 3695 days 1.44 3%
Anouk 9/10 3723 days true 1.68 4%
MissTraveller2009 10/10 3732 days 1.39 3%
David 9/10 3736 days true 1.66 4%
Laura 9/10 3736 days true 1.66 4%
Adam 8/10 3741 days true 1.65 4%
mike brett 7/10 3745 days 1.37 3%
georgepearse 9/10 3782 days 1.32 3%
Aoife 8/10 3785 days true 1.58 3%
Davina 8/10 3786 days true 1.58 3%
Kath 10/10 3788 days true 1.57 3%
Kate 8/10 3797 days true 1.56 3%
Brenda 8/10 3797 days true 1.56 3%
Amy 8/10 3806 days true 1.54 3%
Katie 10/10 3806 days true 1.54 3%
Christoffer 10/10 3808 days true 1.54 3%
Rebecca 9/10 3808 days true 1.54 3%
Suyin 10/10 3808 days true 1.54 3%
Sarah 6/10 3817 days true 1.53 3%
Michaela 9/10 3821 days true 1.52 3%
Christopher 6/10 3821 days true 1.52 3%
James 8/10 3821 days true 1.52 3%
Sam Prior 8/10 3826 days true 1.51 3%
jillian 8/10 3830 days true 1.5 3%
George Burgas 9/10 3835 days true 1.5 3%
stain weedman 6/10 3841 days 1.24 2%
Sharon Curly 9/10 3843 days true 1.48 3%
Peddy 7/10 3847 days 1.23 2%
Tim 5/10 3863 days true 1.45 3%
Thomas Fillary 9/10 3879 days 1.19 2%
Sjoerd 8/10 3885 days true 1.41 3%
Gemma Harling 9/10 3885 days true 1.41 3%
Charlie Bond 9/10 3892 days true 1.4 3%
Florencia Cortese 10/10 3953 days true 1.3 2%
Meike Biel 7/10 3961 days true 1.29 2%
Helen 9/10 3961 days true 1.29 2%
Ellie 9/10 3973 days 1.06 2%
Daniel 7/10 3991 days true 1.24 2%
Omer Harron 9/10 3991 days true 1.24 2%
Yayami Kimura 10/10 3994 days true 1.23 2%
Kieran Concarr 9/10 3994 days true 1.23 2%
Christian 8/10 3998 days true 1.23 2%
Kathrin 9/10 4002 days true 1.22 2%
Andreas Brett 8/10 4004 days true 1.22 2%
Kristine Clemmensen Rotne 7/10 4004 days true 1.22 2%
helga 6/10 4004 days 1.02 2%
Emily Houston 10/10 4008 days true 1.21 2%
Hannah Holmes 8/10 4011 days true 1.21 2%
Lisa Tame 9/10 4012 days true 1.2 2%
Kelly 9/10 4015 days true 1.2 2%
Stephanie 10/10 4023 days true 1.19 2%
Sayaka 7/10 4023 days true 1.19 2%
Marc Hertogs 8/10 4027 days true 1.18 2%
Tanya Berthoud 9/10 4029 days true 1.18 2%
Van Hoof 8/10 4051 days true 1.14 2%
Berger 8/10 4058 days true 1.13 2%
Travis Brennan 9/10 4070 days 0.92 1%
Alexis 10/10 4085 days true 1.08 2%
Martine Arsac 5/10 4093 days true 1.07 2%
Frida 8/10 4095 days true 1.07 2%
Ben 10/10 4096 days true 1.07 2%
Wendy Williams 8/10 4103 days true 1.06 2%
Charlie Wilson 10/10 4178 days true 0.93 1%
Ian Coldrake 8/10 4178 days true 0.93 1%
Jill Bourke 10/10 4183 days true 0.92 1%
Andy Chapman 8/10 4213 days true 0.87 1%
Shelley 10/10 4318 days true 0.7 0%
Will 9/10 4327 days true 0.69 0%
Michael 9/10 4329 days true 0.68 0%
Sue 8/10 4329 days true 0.68 0%
Stefan 8/10 4332 days true 0.68 0%
Jenny 8/10 4335 days true 0.67 0%
Kate 8/10 4337 days true 0.67 0%
Paul Yacoumis 7/10 4339 days true 0.67 0%
Kathryn 9/10 4344 days true 0.66 0%
Celia 9/10 4346 days true 0.66 0%
Annelte 4/10 4347 days true 0.62 0%
IdanNakash 8/10 4347 days true 0.65 0%
Martin Christina 9/10 4347 days true 0.65 0%
Chris 8/10 4348 days true 0.65 0%
Janneke 8/10 4348 days true 0.65 0%
Sue Robertson 10/10 4350 days true 0.65 0%
Fenke 7/10 4353 days true 0.64 0%
Bas 7/10 4353 days true 0.64 0%
Daniel 9/10 4355 days true 0.64 0%
Susan 6/10 4361 days true 0.63 0%
ErikVanDam 9/10 4367 days true 0.62 0%
MariaNorman 9/10 4367 days true 0.62 0%
MarcHarris 8/10 4367 days true 0.62 0%
Helena 10/10 4367 days true 0.62 0%
Sarah 10/10 4376 days true 0.61 0%
beesom 8/10 4377 days true 0.6 0%
Peter 5/10 4381 days true 0.6 0%
Sonja 7/10 4388 days true 0.59 0%
Leah 8/10 4389 days true 0.59 0%
Sarah 10/10 4409 days true 0.55 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

-7.28% 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 364 days.

The Franz Josef Glacier Guides experience has been adjusted for 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

Final Ranking Score

78%

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.