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 Fox Glacier Guiding.

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

Fox Glacier Guiding

Valid Reviews

211 Valid Reviews

The Fox Glacier Guiding experience has a total of 211 valid reviews. There are no 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 211 valid reviews:

Rating Count Percentage
10/10 70
33%
9/10 52
25%
8/10 54
26%
7/10 18
9%
6/10 7
3%
5/10 3
1%
4/10 6
3%
3/10 0
0%
2/10 0
0%
1/10 1
0%

85.69% Average

The raw data average (mean) for all the Fox Glacier Guiding valid reviews is 85.69% and is based on 211 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

185 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 211 valid reviews, the experience has 185 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 185 face-to-face reviews:

Rating Count Percentage
10/10 57
31%
9/10 47
25%
8/10 51
28%
7/10 17
9%
6/10 7
4%
5/10 2
1%
4/10 4
2%
3/10 0
0%
2/10 0
0%
1/10 0
0%

85.84% Average

The raw data average (mean) for all the Fox Glacier Guiding face-to-face reviews is 85.84% and is based on 185 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

86.13%

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
Mona Uttendorf 10/10 1515 days 100%
Sebastian Braun 10/10 1520 days 100%
Tanya Davies 10/10 1568 days 98%
Danielle Stam 7/10 1823 days 78%
Carmen 10/10 2139 days 71%
Claudia Hillebrand 4/10 2487 days 43%
Max Backelandt 9/10 2493 days 54%
Marie Toulemonde 10/10 2493 days 54%
Mark 7/10 2496 days 49%
Daniel Robledo 8/10 2515 days 50%
Maria Camen Santos Lopez 9/10 2515 days 53%
Mara 9/10 2516 days 53%
Andrea Morello 7/10 2516 days 48%
Maria = Moller Hansen 9/10 2525 days 52%
Simon Tanguy 9/10 2533 days 52%
Gassat 4/10 2536 days 41%
Lena Jensen 9/10 2549 days 51%
Jesper Andersen 9/10 2549 days 51%
Claire Lieval 9/10 2561 days 51%
Pioter Jurkowski 7/10 2573 days 46%
Jesse Farrell 8/10 2582 days 47%
Philipp Haass 6/10 2582 days 41%
Chantal 10/10 2586 days 50%
Ken S 10/10 2604 days 49%
Ron Stenhouse 6/10 2848 days 31%
Elizabeth Stenhouse 8/10 2848 days 35%
Andreas Jarvel 9/10 2862 days 37%
Pete Wilson 4/10 2865 days 29%
Marcel 7/10 2872 days 33%
Maria 8/10 2872 days 34%
Clare Cannon 8/10 2889 days 34%
Sara Omary 9/10 2889 days 35%
S M 10/10 2907 days 34%
Alison Langley 8/10 2951 days 31%
Liam Day 9/10 2955 days 32%
Martyn Kool 8/10 2955 days 31%
Michael Kretzschmar 9/10 2955 days 32%
Marieke 9/10 2955 days 32%
Kevin Desjandino 10/10 2956 days 32%
Sharon Yates 10/10 2957 days 32%
Frans Derks 8/10 2962 days 30%
Alexandra van den Brack 8/10 2966 days 30%
Frank and Suzanne 8/10 2969 days 30%
Erik Funk 8/10 2976 days 30%
tanyap 4/10 2999 days 24%
Rob Klauer 8/10 3232 days 18%
Petr Stepanek 7/10 3236 days 17%
Alan Brady 9/10 3241 days 19%
sidcupjon 9/10 3244 days 19%
Robert & Bridget Holden 8/10 3253 days 17%
Vincent & Lian 9/10 3254 days 18%
Stam 9/10 3255 days 18%
Tim & Judith 8/10 3256 days 17%
Rob Gill 10/10 3257 days 18%
Cindy & Glen Kerunsky 10/10 3260 days 18%
R Seiferling 10/10 3265 days 18%
Ursi Meier 9/10 3267 days 18%
Thomas Krause 8/10 3267 days 17%
Hugo ten Brink 8/10 3271 days 16%
kiwifrenchy 10/10 3273 days 17%
Katja Klein 9/10 3318 days 15%
Judith 8/10 3324 days 14%
damaca 10/10 3365 days 13%
KarenW 10/10 3426 days 10%
neilqecosse 9/10 3426 days 10%
MeganJane_85 1/10 3549 days 3%
Marcus 9/10 3569 days 3%
Lisa Milton 10/10 3572 days 3%
Ken Talan 10/10 3575 days 3%
Alita Smith 9/10 3582 days 3%
Leroy Dimitri 10/10 3592 days 2%
Mr & Mrs Palmer 9/10 3596 days 2%
Sayaka 10/10 3596 days 2%
Stoop 8/10 3596 days 2%
Jacob 9/10 3597 days 2%
Maike 9/10 3598 days 2%
Kauzta 10/10 3598 days 2%
Laura Malins 8/10 3600 days 2%
K & J Overton 8/10 3604 days 2%
Betten 10/10 3609 days 1%
taniadeanryanbrittany 8/10 3610 days 1%
Nicolas 7/10 3611 days 1%
Lenore Dejong 9/10 3612 days 1%
Manu & Gabi 10/10 3615 days 1%
Laura Hayes 10/10 3625 days 1%
Maite Severins 7/10 3629 days 0%
Helen Keighley 10/10 3630 days 0%
Ryan Tull 10/10 3633 days 0%
Calvin Parsons 8/10 3638 days 0%
Christian Foerster 7/10 3638 days 0%
Kristie 10/10 3661 days 24%
elpo 9/10 3883 days 24%
Baumgarten 8/10 3911 days 22%
Stephen M 7/10 3956 days 21%
Corine van Been 8/10 3957 days 22%
s_butler 10/10 3963 days 24%
Benedict Fluthman 6/10 3965 days 19%
Peter Schmidt 5/10 3975 days 19%
Nicky and Andy Prescott 10/10 3977 days 24%
Jackie 9/10 3994 days 24%
Vincente Garrido 8/10 3998 days 22%
Keith Wilde 10/10 3998 days 24%
Ian E 8/10 3999 days 22%
kate 5/10 4000 days 19%
Rob 8/10 4001 days 22%
emily walters 10/10 4003 days 24%
Peter Ortner 9/10 4012 days 24%
Nigel Armstrong 10/10 4014 days 24%
Grainne Ahern 4/10 4034 days 18%
Chidlebyte 10/10 4034 days 24%
gabei 7/10 4049 days 21%
mariak 7/10 4051 days 21%
marijad 10/10 4053 days 24%
Paul Nugent 8/10 4065 days 22%
Misha 10/10 4065 days 24%
Alan Riley 8/10 4077 days 22%
Ann Riley 8/10 4077 days 22%
Eimear Doyle 9/10 4077 days 24%
MV Vroenhoven 10/10 4080 days 24%
Sara Reekmans 9/10 4088 days 24%
Emily and Alex 9/10 4092 days 24%
neilchelt 10/10 4095 days 24%
jank 10/10 4156 days 24%
alanvn 9/10 4178 days 24%
bogaard 10/10 4191 days 24%
lorah 10/10 4199 days 24%
joevw 9/10 4264 days 24%
OliverG1 8/10 4297 days 22%
Tim_P 6/10 4306 days 19%
Nathalie 8/10 4306 days 22%
Sofie 9/10 4309 days 24%
ElissaH 10/10 4311 days 24%
KjellR 9/10 4311 days 24%
BonnieH 9/10 4311 days 24%
CharityW 8/10 4311 days 22%
Paul 10/10 4312 days 24%
eskim1018 9/10 4320 days 24%
ChrisD 10/10 4325 days 24%
Christian Moll 9/10 4325 days 24%
david 10/10 4325 days 24%
Doll 10/10 4332 days 24%
A 10/10 4340 days 24%
Tolsten 10/10 4340 days 24%
GaryW 8/10 4344 days 22%
ElizabethF 9/10 4344 days 24%
Claudia 4/10 4345 days 18%
Jason 7/10 4348 days 21%
John 8/10 4350 days 22%
Hans 8/10 4357 days 22%
Carly 7/10 4359 days 21%
Jeffrey C 10/10 4368 days 24%
SueB 10/10 4368 days 24%
Dalit 10/10 4375 days 24%
Jon 10/10 4380 days 24%
Kathrin 9/10 4382 days 24%
Oliver 8/10 4383 days 22%
Patrick 8/10 4385 days 22%
Andrew 8/10 4385 days 22%
Graham 6/10 4394 days 19%
Maria 10/10 4421 days 24%
Jordi 6/10 4429 days 19%
nicole 10/10 4431 days 24%
Rowan 9/10 4454 days 24%
abby 9/10 4465 days 24%
Andrew 9/10 4476 days 24%
Anna 10/10 4506 days 24%
Atsuko 8/10 4515 days 22%
Trina 10/10 4533 days 24%
Terri Scott 10/10 4544 days 24%
Brian 10/10 4557 days 24%
Wolfgang 8/10 4581 days 22%
Gorka Rojas 9/10 4581 days 24%
Ashlee Roberts 10/10 4606 days 24%
Corin Kraft 10/10 4651 days 24%
Anke 9/10 4659 days 24%
Olga 7/10 4675 days 21%
Ben 8/10 4680 days 22%
Chris 7/10 4686 days 21%
Elizabeth Woodruff 5/10 4689 days 19%
Sandra Verbaarschot 10/10 4689 days 24%
Denise 10/10 4692 days 24%
Lisa Jones 10/10 4696 days 24%
Richard Anthony 8/10 4696 days 22%
Renske Tehurne 8/10 4700 days 22%
Robert 10/10 4701 days 24%
Elise 10/10 4701 days 24%
Fung 10/10 4701 days 24%
Omri Hasson 9/10 4706 days 24%
Aharon 10/10 4707 days 24%
Sue 8/10 4713 days 22%
Ondrej Kacena 8/10 4720 days 22%
Laurie 8/10 4720 days 22%
Eric P 10/10 4728 days 24%
Alex 8/10 4737 days 22%
Natalie 10/10 4749 days 24%
Paul Cowie 7/10 4784 days 21%
Ard 8/10 4784 days 22%
Gabriel Faber 8/10 4784 days 22%
Michael 8/10 4794 days 22%
purplekat99 8/10 4796 days 22%
Wendy Williams 9/10 4801 days 24%
MrsWesley 6/10 5036 days 19%
John 7/10 5042 days 21%
Heike 9/10 5049 days 24%
Colin Sinclair 10/10 5050 days 24%
Angela Shearer 8/10 5050 days 22%
Loic 9/10 5074 days 24%
Reggie 9/10 5075 days 24%
FluerBlum 8/10 5087 days 22%
Hermann 10/10 5088 days 24%
Franz-Josef 9/10 5091 days 24%

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 Fox Glacier Guiding experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.09% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 46 days. However the Fox Glacier Guiding 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 Fox Glacier Guiding experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.03%
198 -4.05%
199 -4.07%
200 -4.09%
201 -4.11%
202 -4.13%
203 -4.15%

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.