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Ranking Score Explained

G'day, 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.

Cymen Crick's avatar

Cymen Crick

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

85.16%

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 3252 days 100%
Jessica Freeland 10/10 3313 days 94%
Nanna Overbeck 10/10 3325 days 93%
Joe Rogers 9/10 3606 days 66%
Nicola Wiggan 9/10 3675 days 59%
Ben McDougal 10/10 3697 days 58%
Maria Schober 5/10 3984 days 22%
Helen Parsons 1/10 3992 days 8%
Elisa Felising 7/10 3992 days 27%
Claudia de Winter 9/10 4304 days 0%
Penny Lee 9/10 4306 days 0%
Jeroen Suijlang 8/10 4306 days 0%
Ludvig Fagerstrom 8/10 4380 days 41%
Marco Schmidt 10/10 4677 days 42%
Christian Schumacher 10/10 4677 days 42%
Jennifer Bramstad 8/10 4697 days 41%
Evelina Johansson 8/10 4697 days 41%
Sofia Anderson 10/10 4697 days 42%
Steve 5/10 4698 days 30%
Janine Kohlgrueler 9/10 4705 days 41%
Fraser Goldsmith 9/10 4722 days 41%
Nigel Leighton 10/10 4776 days 42%
Jonathan Vondette 7/10 4779 days 38%
Andreas and Christine and Nora Busch 10/10 4787 days 42%
lavonc 3/10 4818 days 19%
peterpiper 10/10 5002 days 42%
sandytemp22 10/10 5032 days 42%
Laura vanGool 10/10 5048 days 42%
Barbara Berkhout 7/10 5048 days 38%
Jurgen Joyce 8/10 5055 days 41%
Carole Carter 9/10 5055 days 41%
Sabrina Germany 9/10 5058 days 41%
J Jmal 10/10 5059 days 42%
Malena 10/10 5063 days 42%
Erik 10/10 5065 days 42%
Marion Hassink 8/10 5069 days 41%
Baas 8/10 5072 days 41%
Barbara 10/10 5073 days 42%
Rebecca Richardson 8/10 5074 days 41%
Andrew Powell 7/10 5074 days 38%
Andy Bridgman 8/10 5077 days 41%
Aoife Lillis 7/10 5080 days 38%
Rainer Schnell 8/10 5084 days 41%
Filsack 8/10 5084 days 41%
Hazel 10/10 5085 days 42%
Frank Waskikowski 9/10 5086 days 41%
Andreas Kristiansen 9/10 5086 days 41%
Robert MacLeod-Smith 8/10 5088 days 41%
Chris Marsh 6/10 5089 days 35%
Jessica Lane 7/10 5089 days 38%
Francis Corrigan 7/10 5093 days 38%
Laura Smith 9/10 5105 days 41%
Dean 8/10 5138 days 41%
Berry 10/10 5165 days 42%
Steve 9/10 5168 days 41%
MaggieYChaChi 9/10 5245 days 41%
GenH 9/10 5368 days 41%
Allison Meyoz 9/10 5374 days 41%
G Tulloch 9/10 5392 days 41%
Stephen Hunt 9/10 5394 days 41%
Thomas Klebensberger 10/10 5394 days 42%
Therea 10/10 5397 days 42%
Sean Brownell 7/10 5398 days 38%
Laura Thrower 10/10 5403 days 42%
David Taylor 9/10 5403 days 41%
Stefan Schmitz 8/10 5411 days 41%
Marii Joekalda 8/10 5412 days 41%
Frank & Ruth 6/10 5413 days 35%
Nathalie 10/10 5413 days 42%
Jo Meekley 7/10 5413 days 38%
Margit and Corein Groenevelt 8/10 5415 days 41%
Judith 9/10 5415 days 41%
Ven 8/10 5415 days 41%
Florian 8/10 5419 days 41%
Helen 9/10 5419 days 41%
Juliane Kleiu 10/10 5419 days 42%
Paula Dove 10/10 5419 days 42%
Erin 8/10 5420 days 41%
Walter Buschta 8/10 5420 days 41%
Wouter Moui 6/10 5421 days 35%
K Dahmer 8/10 5422 days 41%
Jonathan Cree 9/10 5422 days 41%
Laura Leigh 10/10 5422 days 42%
Ann-Kathrin Auditor 10/10 5423 days 42%
Katherine Forward 8/10 5423 days 41%
Chris Ashton 10/10 5423 days 42%
Jerry & Floon 7/10 5427 days 38%
Hadar Zevulun 9/10 5428 days 41%
Grumbach 9/10 5432 days 41%
Caroline Sheridan 9/10 5433 days 41%
Chris Darlington 10/10 5437 days 42%
Cheryl 10/10 5447 days 42%
Mark Aarts 9/10 5448 days 41%
Samuel Prechel 8/10 5449 days 41%
Dave and Lin Mungham 10/10 5450 days 42%
Gordon Daniels 8/10 5452 days 41%
Dr Dorthe Bossow 3/10 5453 days 19%
Helen Gilbertson 8/10 5456 days 41%
Doris Neuber 9/10 5456 days 41%
Ashleigh Buckley 8/10 5457 days 41%
PerspirationJournal 10/10 5549 days 42%
alku83 10/10 5549 days 42%
Mary Van 8/10 5610 days 41%
chloe1111 10/10 5733 days 42%
jenniferuk 9/10 5733 days 41%
Peter and Hilda 10/10 5763 days 42%
Einar 9/10 5782 days 41%
Inbar Yizhar Barnea 8/10 5782 days 41%
Tanya 9/10 5787 days 41%
Jana Steve 10/10 5788 days 42%
Yasmin Abrahams 7/10 5796 days 38%
Barbara & Sven 10/10 5796 days 42%
Judith 8/10 5800 days 41%
Henrik Hougs 8/10 5802 days 41%
Chris Glasg 9/10 5802 days 41%
Michael 10/10 5804 days 42%
Gary Ebrig 10/10 5807 days 42%
Mathias 9/10 5809 days 41%
Jamie 9/10 5814 days 41%
David Hobson 8/10 5814 days 41%
Christian 10/10 5814 days 42%
vanijzendoor 8/10 5817 days 41%
Dick Rosman 8/10 5818 days 41%
Frances Hay 8/10 5821 days 41%
Chance McGuire 10/10 5822 days 42%
Kevin and Teresa 8/10 5822 days 41%
Ben Miklozek 9/10 5822 days 41%
Marianne Lovdal 9/10 5822 days 41%
Jessica 5/10 5827 days 30%
S Luis Van Oler 6/10 5827 days 35%
sophiep 8/10 5868 days 41%
katharinatum 9/10 5868 days 41%
koellner 6/10 5882 days 35%
chrish1 9/10 5884 days 41%
Fred Findlay 7/10 5896 days 38%
maleta 9/10 5905 days 41%
Gemma Morris 10/10 5907 days 42%
TomL 10/10 5914 days 42%
Pauline Wan 7/10 5914 days 38%
eowyn2k 7/10 5914 days 38%
Suzanne 9/10 5945 days 41%
terryd 9/10 6006 days 41%
kindel 6/10 6010 days 35%
Emear Donnelly 10/10 6049 days 42%
zoed 7/10 6083 days 38%
steph_m 9/10 6098 days 41%
Charles Lyne 10/10 6098 days 42%
BenM1 7/10 6107 days 38%
KimC 8/10 6116 days 41%
JonK 8/10 6116 days 41%
TschaneK 10/10 6118 days 42%
RogerW 10/10 6120 days 42%
NicolaW 10/10 6120 days 42%
Lisa Duin 8/10 6126 days 41%
Joanna Harrnon 9/10 6127 days 41%
David 8/10 6128 days 41%
johnst 10/10 6128 days 42%
Adi 10/10 6128 days 42%
Sally477 9/10 6129 days 41%
Becca1 9/10 6130 days 41%
Jelle 8/10 6131 days 41%
Denys 8/10 6132 days 41%
Ronny 9/10 6132 days 41%
Viktoria Stoffel 10/10 6135 days 42%
Jon Li 9/10 6140 days 41%
Han Disveld 9/10 6140 days 41%
BevanLisa 10/10 6145 days 42%
SabineGermany 10/10 6146 days 42%
StefanGermany1 9/10 6146 days 41%
AnjaC 7/10 6146 days 38%
AnjaChrist 7/10 6146 days 38%
Torsten 9/10 6147 days 41%
MarcoJ 8/10 6148 days 41%
James O'Neil 10/10 6148 days 42%
Barry Smith 10/10 6148 days 42%
Siemens 8/10 6148 days 41%
AlexH 10/10 6149 days 42%
AnnickH 6/10 6150 days 35%
Rene 8/10 6151 days 41%
Dorothee 8/10 6151 days 41%
Rob 7/10 6151 days 38%
Mike 6/10 6152 days 35%
TammyH 9/10 6154 days 41%
Lynn White 7/10 6154 days 38%
Mette 8/10 6158 days 41%
Axel 5/10 6158 days 30%
amyd 8/10 6159 days 41%
Susan 9/10 6160 days 41%
lannie 5/10 6161 days 30%
XaviG 9/10 6162 days 41%
ChenM 8/10 6162 days 41%
Steven 9/10 6162 days 41%
CarleyJ 8/10 6162 days 41%
JesusB 7/10 6162 days 38%
GingerPrince 9/10 6162 days 41%
Steve 10/10 6162 days 42%
Claudia 9/10 6164 days 41%
Pascal 8/10 6164 days 41%
Karen 9/10 6167 days 41%
RandiL 7/10 6170 days 38%
IreneF 9/10 6171 days 41%
Rachel 8/10 6177 days 41%
Adi 10/10 6177 days 42%
Claire 8/10 6177 days 41%
Philippa 9/10 6178 days 41%
Conway 9/10 6178 days 41%
orianne 10/10 6185 days 42%
Caroline 7/10 6185 days 38%
Eike 9/10 6192 days 41%
Benni 7/10 6194 days 38%
John 6/10 6197 days 35%
Dan 9/10 6201 days 41%
Sally 9/10 6201 days 41%
Rosa 4/10 6201 days 25%
Sascha 7/10 6202 days 38%
Dassel 8/10 6202 days 41%
Eric 3/10 6203 days 19%
Charlie 9/10 6208 days 41%
tommfuller 7/10 6212 days 38%
Anouk 9/10 6240 days 41%
MissTraveller2009 10/10 6249 days 42%
David 9/10 6253 days 41%
Laura 9/10 6253 days 41%
Adam 8/10 6258 days 41%
mike brett 7/10 6262 days 38%
georgepearse 9/10 6299 days 41%
Aoife 8/10 6302 days 41%
Davina 8/10 6303 days 41%
Kath 10/10 6305 days 42%
Kate 8/10 6314 days 41%
Brenda 8/10 6314 days 41%
Amy 8/10 6323 days 41%
Katie 10/10 6323 days 42%
Christoffer 10/10 6325 days 42%
Rebecca 9/10 6325 days 41%
Suyin 10/10 6325 days 42%
Sarah 6/10 6334 days 35%
Michaela 9/10 6338 days 41%
Christopher 6/10 6338 days 35%
James 8/10 6338 days 41%
Sam Prior 8/10 6343 days 41%
jillian 8/10 6347 days 41%
George Burgas 9/10 6352 days 41%
stain weedman 6/10 6358 days 35%
Sharon Curly 9/10 6360 days 41%
Peddy 7/10 6364 days 38%
Tim 5/10 6380 days 30%
Thomas Fillary 9/10 6396 days 41%
Sjoerd 8/10 6402 days 41%
Gemma Harling 9/10 6402 days 41%
Charlie Bond 9/10 6409 days 41%
Florencia Cortese 10/10 6470 days 42%
Meike Biel 7/10 6478 days 38%
Helen 9/10 6478 days 41%
Ellie 9/10 6490 days 41%
Daniel 7/10 6508 days 38%
Omer Harron 9/10 6508 days 41%
Yayami Kimura 10/10 6511 days 42%
Kieran Concarr 9/10 6511 days 41%
Christian 8/10 6515 days 41%
Kathrin 9/10 6519 days 41%
Andreas Brett 8/10 6521 days 41%
Kristine Clemmensen Rotne 7/10 6521 days 38%
helga 6/10 6521 days 35%
Emily Houston 10/10 6525 days 42%
Hannah Holmes 8/10 6528 days 41%
Lisa Tame 9/10 6529 days 41%
Kelly 9/10 6532 days 41%
Stephanie 10/10 6540 days 42%
Sayaka 7/10 6540 days 38%
Marc Hertogs 8/10 6544 days 41%
Tanya Berthoud 9/10 6546 days 41%
Van Hoof 8/10 6568 days 41%
Berger 8/10 6575 days 41%
Travis Brennan 9/10 6587 days 41%
Alexis 10/10 6602 days 42%
Martine Arsac 5/10 6610 days 30%
Frida 8/10 6612 days 41%
Ben 10/10 6613 days 42%
Wendy Williams 8/10 6620 days 41%
Charlie Wilson 10/10 6695 days 42%
Ian Coldrake 8/10 6695 days 41%
Jill Bourke 10/10 6700 days 42%
Andy Chapman 8/10 6730 days 41%
Shelley 10/10 6835 days 42%
Will 9/10 6844 days 41%
Michael 9/10 6846 days 41%
Sue 8/10 6846 days 41%
Stefan 8/10 6849 days 41%
Jenny 8/10 6852 days 41%
Kate 8/10 6854 days 41%
Paul Yacoumis 7/10 6856 days 38%
Kathryn 9/10 6861 days 41%
Celia 9/10 6863 days 41%
Annelte 4/10 6864 days 25%
IdanNakash 8/10 6864 days 41%
Martin Christina 9/10 6864 days 41%
Chris 8/10 6865 days 41%
Janneke 8/10 6865 days 41%
Sue Robertson 10/10 6867 days 42%
Fenke 7/10 6870 days 38%
Bas 7/10 6870 days 38%
Daniel 9/10 6872 days 41%
Susan 6/10 6878 days 35%
ErikVanDam 9/10 6884 days 41%
MariaNorman 9/10 6884 days 41%
MarcHarris 8/10 6884 days 41%
Helena 10/10 6884 days 42%
Sarah 10/10 6893 days 42%
beesom 8/10 6894 days 41%
Peter 5/10 6898 days 30%
Sonja 7/10 6905 days 38%
Leah 8/10 6906 days 41%
Sarah 10/10 6926 days 42%

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

-4.05% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 44 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 -3.99%
198 -4.01%
199 -4.03%
200 -4.05%
201 -4.07%
202 -4.09%
203 -4.11%
… …

Balancing Adjustment

2.70% Adjustment

Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.

You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.

We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.

Final Ranking Score

84%

The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.