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

85.62%

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 1109 days true 4.97 100%
Jessica Freeland 10/10 1170 days true 4.85 98%
Nanna Overbeck 10/10 1182 days true 4.83 97%
Joe Rogers 9/10 1463 days true 4.28 86%
Nicola Wiggan 9/10 1532 days true 4.14 83%
Ben McDougal 10/10 1554 days true 4.1 82%
Maria Schober 5/10 1841 days true 2.87 58%
Helen Parsons 1/10 1849 days true 2.57 52%
Elisa Felising 7/10 1849 days true 3.21 64%
Claudia de Winter 9/10 2161 days true 2.91 59%
Penny Lee 9/10 2163 days true 2.91 59%
Jeroen Suijlang 8/10 2163 days true 2.76 56%
Ludvig Fagerstrom 8/10 2237 days true 2.63 53%
Marco Schmidt 10/10 2534 days true 2.18 44%
Christian Schumacher 10/10 2534 days true 2.18 44%
Jennifer Bramstad 8/10 2554 days true 2.04 41%
Evelina Johansson 8/10 2554 days true 2.04 41%
Sofia Anderson 10/10 2554 days true 2.14 43%
Steve 5/10 2555 days 1.74 35%
Janine Kohlgrueler 9/10 2562 days true 2.13 43%
Fraser Goldsmith 9/10 2579 days true 2.1 42%
Nigel Leighton 10/10 2633 days true 1.99 40%
Jonathan Vondette 7/10 2636 days true 1.81 36%
Andreas and Christine and Nora Busch 10/10 2644 days true 1.97 40%
lavonc 3/10 2675 days 1.47 30%
peterpiper 10/10 2859 days 1.55 31%
sandytemp22 10/10 2889 days 1.49 30%
Laura vanGool 10/10 2905 days true 1.46 29%
Barbara Berkhout 7/10 2905 days true 1.33 27%
Jurgen Joyce 8/10 2912 days true 1.37 28%
Carole Carter 9/10 2912 days true 1.44 29%
Sabrina Germany 9/10 2915 days true 1.44 29%
J Jmal 10/10 2916 days true 1.44 29%
Malena 10/10 2920 days 1.43 29%
Erik 10/10 2922 days true 1.42 29%
Marion Hassink 8/10 2926 days true 1.35 27%
Baas 8/10 2929 days true 1.34 27%
Barbara 10/10 2930 days true 1.41 28%
Rebecca Richardson 8/10 2931 days true 1.34 27%
Andrew Powell 7/10 2931 days true 1.28 26%
Andy Bridgman 8/10 2934 days true 1.33 27%
Aoife Lillis 7/10 2937 days true 1.27 26%
Rainer Schnell 8/10 2941 days true 1.32 27%
Filsack 8/10 2941 days true 1.32 27%
Hazel 10/10 2942 days true 1.39 28%
Frank Waskikowski 9/10 2943 days true 1.38 28%
Andreas Kristiansen 9/10 2943 days true 1.38 28%
Robert MacLeod-Smith 8/10 2945 days true 1.31 26%
Chris Marsh 6/10 2946 days true 1.14 23%
Jessica Lane 7/10 2946 days true 1.25 25%
Francis Corrigan 7/10 2950 days true 1.25 25%
Laura Smith 9/10 2962 days true 1.35 27%
Dean 8/10 2995 days true 1.22 24%
Berry 10/10 3022 days true 1.23 25%
Steve 9/10 3025 days true 1.22 25%
MaggieYChaChi 9/10 3102 days 1.07 22%
GenH 9/10 3225 days 0.83 17%
Allison Meyoz 9/10 3231 days true 0.82 16%
G Tulloch 9/10 3249 days true 0.78 16%
Stephen Hunt 9/10 3251 days true 0.78 16%
Thomas Klebensberger 10/10 3251 days true 0.78 16%
Therea 10/10 3254 days true 0.77 16%
Sean Brownell 7/10 3255 days true 0.7 14%
Laura Thrower 10/10 3260 days true 0.76 15%
David Taylor 9/10 3260 days true 0.76 15%
Stefan Schmitz 8/10 3268 days true 0.71 14%
Marii Joekalda 8/10 3269 days true 0.71 14%
Frank & Ruth 6/10 3270 days true 0.62 12%
Nathalie 10/10 3270 days true 0.74 15%
Jo Meekley 7/10 3270 days true 0.68 14%
Margit and Corein Groenevelt 8/10 3272 days true 0.7 14%
Judith 9/10 3272 days true 0.74 15%
Ven 8/10 3272 days true 0.7 14%
Florian 8/10 3276 days true 0.7 14%
Helen 9/10 3276 days true 0.73 15%
Juliane Kleiu 10/10 3276 days true 0.73 15%
Paula Dove 10/10 3276 days true 0.73 15%
Erin 8/10 3277 days true 0.69 14%
Walter Buschta 8/10 3277 days true 0.69 14%
Wouter Moui 6/10 3278 days true 0.6 12%
K Dahmer 8/10 3279 days true 0.69 14%
Jonathan Cree 9/10 3279 days true 0.73 15%
Laura Leigh 10/10 3279 days true 0.73 15%
Ann-Kathrin Auditor 10/10 3280 days true 0.72 15%
Katherine Forward 8/10 3280 days true 0.69 14%
Chris Ashton 10/10 3280 days true 0.72 15%
Jerry & Floon 7/10 3284 days true 0.65 13%
Hadar Zevulun 9/10 3285 days true 0.71 14%
Grumbach 9/10 3289 days true 0.71 14%
Caroline Sheridan 9/10 3290 days true 0.7 14%
Chris Darlington 10/10 3294 days true 0.7 14%
Cheryl 10/10 3304 days true 0.68 14%
Mark Aarts 9/10 3305 days true 0.68 14%
Samuel Prechel 8/10 3306 days true 0.64 13%
Dave and Lin Mungham 10/10 3307 days true 0.67 13%
Gordon Daniels 8/10 3309 days true 0.63 13%
Dr Dorthe Bossow 3/10 3310 days true 0.51 10%
Helen Gilbertson 8/10 3313 days true 0.63 13%
Doris Neuber 9/10 3313 days true 0.66 13%
Ashleigh Buckley 8/10 3314 days true 0.62 13%
PerspirationJournal 10/10 3406 days 0.48 10%
alku83 10/10 3406 days 0.48 10%
Mary Van 8/10 3467 days 0.34 7%
chloe1111 10/10 3590 days 0.12 2%
jenniferuk 9/10 3590 days true 0.12 2%
Peter and Hilda 10/10 3620 days true 0.06 1%
Einar 9/10 3639 days true 0.02 0%
Inbar Yizhar Barnea 8/10 3639 days true 0.02 0%
Tanya 9/10 3644 days true 0.01 0%
Jana Steve 10/10 3645 days true 0.01 0%
Yasmin Abrahams 7/10 3653 days true 0.0 0%
Barbara & Sven 10/10 3653 days true 0.0 0%
Judith 8/10 3657 days true 0.0 0%
Henrik Hougs 8/10 3659 days true 0.0 0%
Chris Glasg 9/10 3659 days true 0.0 0%
Michael 10/10 3661 days true 0.0 0%
Gary Ebrig 10/10 3664 days true 0.0 0%
Mathias 9/10 3666 days true 0.0 0%
Jamie 9/10 3671 days true 0.0 0%
David Hobson 8/10 3671 days true 0.0 0%
Christian 10/10 3671 days true 0.0 0%
vanijzendoor 8/10 3674 days true 0.0 0%
Dick Rosman 8/10 3675 days true 0.0 0%
Frances Hay 8/10 3678 days true 0.0 0%
Chance McGuire 10/10 3679 days 0.0 0%
Kevin and Teresa 8/10 3679 days true 0.0 0%
Ben Miklozek 9/10 3679 days true 0.0 0%
Marianne Lovdal 9/10 3679 days true 0.0 0%
Jessica 5/10 3684 days true 0.0 0%
S Luis Van Oler 6/10 3684 days true 0.0 0%
sophiep 8/10 3725 days true 0.0 0%
katharinatum 9/10 3725 days true 0.0 0%
koellner 6/10 3739 days true 0.0 0%
chrish1 9/10 3741 days true 0.0 0%
Fred Findlay 7/10 3753 days true 0.0 0%
maleta 9/10 3762 days true 0.0 0%
Gemma Morris 10/10 3764 days true 0.0 0%
TomL 10/10 3771 days 0.0 0%
Pauline Wan 7/10 3771 days 0.0 0%
eowyn2k 7/10 3771 days 0.0 0%
Suzanne 9/10 3802 days 0.0 0%
terryd 9/10 3863 days true 0.0 0%
kindel 6/10 3867 days true 0.0 0%
Emear Donnelly 10/10 3906 days true 0.0 0%
zoed 7/10 3940 days true 0.0 0%
steph_m 9/10 3955 days 0.0 0%
Charles Lyne 10/10 3955 days 0.0 0%
BenM1 7/10 3964 days true 0.0 0%
KimC 8/10 3973 days true 0.0 0%
JonK 8/10 3973 days true 0.0 0%
TschaneK 10/10 3975 days true 0.0 0%
RogerW 10/10 3977 days true 0.0 0%
NicolaW 10/10 3977 days true 0.0 0%
Lisa Duin 8/10 3983 days true 0.0 0%
Joanna Harrnon 9/10 3984 days true 0.0 0%
David 8/10 3985 days 0.0 0%
johnst 10/10 3985 days true 0.0 0%
Adi 10/10 3986 days true 0.0 0%
Sally477 9/10 3986 days 0.0 0%
Becca1 9/10 3987 days true 0.0 0%
Jelle 8/10 3988 days true 0.0 0%
Denys 8/10 3990 days true 0.0 0%
Ronny 9/10 3990 days true 0.0 0%
Viktoria Stoffel 10/10 3992 days true 0.0 0%
Jon Li 9/10 3997 days true 0.0 0%
Han Disveld 9/10 3997 days true 0.0 0%
BevanLisa 10/10 4002 days true 0.0 0%
SabineGermany 10/10 4003 days true 0.0 0%
StefanGermany1 9/10 4003 days true 0.0 0%
AnjaC 7/10 4003 days true 0.0 0%
AnjaChrist 7/10 4003 days true 0.0 0%
Torsten 9/10 4005 days true 0.0 0%
MarcoJ 8/10 4005 days true 0.0 0%
James O'Neil 10/10 4005 days true 0.0 0%
Barry Smith 10/10 4005 days true 0.0 0%
Siemens 8/10 4005 days true 0.0 0%
AlexH 10/10 4006 days true 0.0 0%
AnnickH 6/10 4007 days true 0.0 0%
Rene 8/10 4009 days true 0.0 0%
Dorothee 8/10 4009 days true 0.0 0%
Rob 7/10 4009 days true 0.0 0%
Mike 6/10 4009 days true 0.0 0%
TammyH 9/10 4011 days true 0.0 0%
Lynn White 7/10 4012 days 0.0 0%
Mette 8/10 4016 days true 0.0 0%
Axel 5/10 4016 days true 0.0 0%
amyd 8/10 4016 days 0.0 0%
Susan 9/10 4018 days true 0.0 0%
lannie 5/10 4019 days true 0.0 0%
XaviG 9/10 4019 days true 0.0 0%
ChenM 8/10 4019 days true 0.0 0%
Steven 9/10 4019 days true 0.0 0%
CarleyJ 8/10 4019 days true 0.0 0%
JesusB 7/10 4019 days true 0.0 0%
GingerPrince 9/10 4019 days true 0.0 0%
Steve 10/10 4019 days true 0.0 0%
Claudia 9/10 4022 days true 0.0 0%
Pascal 8/10 4022 days true 0.0 0%
Karen 9/10 4025 days true 0.0 0%
RandiL 7/10 4027 days true 0.0 0%
IreneF 9/10 4028 days true 0.0 0%
Rachel 8/10 4035 days true 0.0 0%
Adi 10/10 4035 days true 0.0 0%
Claire 8/10 4035 days true 0.0 0%
Philippa 9/10 4036 days true 0.0 0%
Conway 9/10 4036 days true 0.0 0%
orianne 10/10 4042 days 0.0 0%
Caroline 7/10 4043 days true 0.0 0%
Eike 9/10 4050 days true 0.0 0%
Benni 7/10 4052 days true 0.0 0%
John 6/10 4055 days true 0.0 0%
Dan 9/10 4059 days true 0.0 0%
Sally 9/10 4059 days true 0.0 0%
Rosa 4/10 4059 days true 0.0 0%
Sascha 7/10 4059 days true 0.0 0%
Dassel 8/10 4059 days true 0.0 0%
Eric 3/10 4061 days true 0.0 0%
Charlie 9/10 4066 days true 0.0 0%
tommfuller 7/10 4070 days 0.0 0%
Anouk 9/10 4098 days true 0.0 0%
MissTraveller2009 10/10 4106 days 0.0 0%
David 9/10 4111 days true 0.0 0%
Laura 9/10 4111 days true 0.0 0%
Adam 8/10 4116 days true 0.0 0%
mike brett 7/10 4119 days 0.0 0%
georgepearse 9/10 4157 days 0.0 0%
Aoife 8/10 4160 days true 0.0 0%
Davina 8/10 4161 days true 0.0 0%
Kath 10/10 4163 days true 0.0 0%
Kate 8/10 4172 days true 0.0 0%
Brenda 8/10 4172 days true 0.0 0%
Amy 8/10 4181 days true 0.0 0%
Katie 10/10 4181 days true 0.0 0%
Christoffer 10/10 4183 days true 0.0 0%
Rebecca 9/10 4183 days true 0.0 0%
Suyin 10/10 4183 days true 0.0 0%
Sarah 6/10 4192 days true 0.0 0%
Michaela 9/10 4196 days true 0.0 0%
Christopher 6/10 4196 days true 0.0 0%
James 8/10 4196 days true 0.0 0%
Sam Prior 8/10 4201 days true 0.0 0%
jillian 8/10 4205 days true 0.0 0%
George Burgas 9/10 4210 days true 0.0 0%
stain weedman 6/10 4216 days 0.0 0%
Sharon Curly 9/10 4218 days true 0.0 0%
Peddy 7/10 4222 days 0.0 0%
Tim 5/10 4238 days true 0.0 0%
Thomas Fillary 9/10 4254 days 0.0 0%
Sjoerd 8/10 4260 days true 0.0 0%
Gemma Harling 9/10 4260 days true 0.0 0%
Charlie Bond 9/10 4267 days true 0.0 0%
Florencia Cortese 10/10 4327 days true 0.0 0%
Meike Biel 7/10 4335 days true 0.0 0%
Helen 9/10 4335 days true 0.0 0%
Ellie 9/10 4348 days 0.0 0%
Daniel 7/10 4365 days true 0.0 0%
Omer Harron 9/10 4365 days true 0.0 0%
Yayami Kimura 10/10 4368 days true 0.0 0%
Kieran Concarr 9/10 4368 days true 0.0 0%
Christian 8/10 4372 days true 0.0 0%
Kathrin 9/10 4376 days true 0.0 0%
Andreas Brett 8/10 4378 days true 0.0 0%
Kristine Clemmensen Rotne 7/10 4378 days true 0.0 0%
helga 6/10 4379 days 0.0 0%
Emily Houston 10/10 4382 days true 0.0 0%
Hannah Holmes 8/10 4385 days true 0.0 0%
Lisa Tame 9/10 4386 days true 0.0 0%
Kelly 9/10 4389 days true 0.0 0%
Stephanie 10/10 4397 days true 0.0 0%
Sayaka 7/10 4397 days true 0.0 0%
Marc Hertogs 8/10 4401 days true 0.0 0%
Tanya Berthoud 9/10 4403 days true 0.0 0%
Van Hoof 8/10 4425 days true 0.0 0%
Berger 8/10 4432 days true 0.0 0%
Travis Brennan 9/10 4445 days 0.0 0%
Alexis 10/10 4459 days true 0.0 0%
Martine Arsac 5/10 4467 days true 0.0 0%
Frida 8/10 4469 days true 0.0 0%
Ben 10/10 4470 days true 0.0 0%
Wendy Williams 8/10 4477 days true 0.0 0%
Charlie Wilson 10/10 4552 days true 0.0 0%
Ian Coldrake 8/10 4552 days true 0.0 0%
Jill Bourke 10/10 4557 days true 0.0 0%
Andy Chapman 8/10 4587 days true 0.0 0%
Shelley 10/10 4692 days true 0.0 0%
Will 9/10 4701 days true 0.0 0%
Michael 9/10 4703 days true 0.0 0%
Sue 8/10 4703 days true 0.0 0%
Stefan 8/10 4706 days true 0.0 0%
Jenny 8/10 4709 days true 0.0 0%
Kate 8/10 4711 days true 0.0 0%
Paul Yacoumis 7/10 4713 days true 0.0 0%
Kathryn 9/10 4718 days true 0.0 0%
Celia 9/10 4720 days true 0.0 0%
Annelte 4/10 4721 days true 0.0 0%
IdanNakash 8/10 4721 days true 0.0 0%
Martin Christina 9/10 4721 days true 0.0 0%
Chris 8/10 4722 days true 0.0 0%
Janneke 8/10 4722 days true 0.0 0%
Sue Robertson 10/10 4724 days true 0.0 0%
Fenke 7/10 4727 days true 0.0 0%
Bas 7/10 4727 days true 0.0 0%
Daniel 9/10 4729 days true 0.0 0%
Susan 6/10 4735 days true 0.0 0%
ErikVanDam 9/10 4741 days true 0.0 0%
MariaNorman 9/10 4741 days true 0.0 0%
MarcHarris 8/10 4741 days true 0.0 0%
Helena 10/10 4741 days true 0.0 0%
Sarah 10/10 4750 days true 0.0 0%
beesom 8/10 4751 days true 0.0 0%
Peter 5/10 4755 days true 0.0 0%
Sonja 7/10 4762 days true 0.0 0%
Leah 8/10 4763 days true 0.0 0%
Sarah 10/10 4783 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.