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 Southern Discoveries.

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

Southern Discoveries

Valid Reviews

199 Valid Reviews

The Southern Discoveries experience has a total of 199 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 199 valid reviews:

Rating Count Percentage
10/10 63
32%
9/10 59
30%
8/10 48
24%
7/10 21
11%
6/10 5
3%
5/10 3
2%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

87.29% Average

The raw data average (mean) for all the Southern Discoveries valid reviews is 87.29% and is based on 199 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

186 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 199 valid reviews, the experience has 186 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 186 face-to-face reviews:

Rating Count Percentage
10/10 55
30%
9/10 58
31%
8/10 47
25%
7/10 18
10%
6/10 5
3%
5/10 3
2%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

87.04% Average

The raw data average (mean) for all the Southern Discoveries face-to-face reviews is 87.04% and is based on 186 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

87.30%

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
Remy and Rebecca Mans 6/10 1704 days 84%
Jocelyn Booy 9/10 1729 days 100%
David Horley 7/10 1743 days 90%
Vallee Manon 9/10 1776 days 98%
Nanda Dyke 9/10 1802 days 96%
victor diego 7/10 1820 days 87%
Samuel Michalak 10/10 1825 days 95%
Laura Munguira Vadillo 10/10 2049 days 83%
Benedikt Hang 8/10 2056 days 79%
Jorge Gonzoleis 8/10 2059 days 79%
Lauren Goebel 10/10 2063 days 82%
Rahel Baufeld 8/10 2071 days 78%
Peter Hodgson 10/10 2097 days 81%
doug fiddes 10/10 2122 days 79%
Dan Wilson 7/10 2139 days 71%
Corrie Medinea 8/10 2147 days 74%
Gracen Verheryden 10/10 2150 days 78%
Jennifer Hoyles 10/10 2154 days 78%
Lenka Korinkova 7/10 2416 days 58%
Rebecca Wharton 9/10 2444 days 62%
Andy Jobst 8/10 2519 days 56%
Rawiri johnston 10/10 2702 days 49%
Marek Heiurich 7/10 2772 days 41%
Matt Weston 10/10 2777 days 45%
Henrik Bours 8/10 2778 days 43%
Svenja Trubenbach 9/10 2778 days 45%
Sheila Galpin 9/10 2792 days 44%
Guillaume 9/10 2803 days 44%
Andreas Jung 9/10 2818 days 43%
Inga Memmen 10/10 2820 days 43%
Alacchi Moustier 10/10 2835 days 42%
Guy David 9/10 2843 days 42%
Michael Rohn 8/10 2850 days 39%
Rainer 9/10 3134 days 26%
Clarissa Hanck 9/10 3134 days 26%
Michael Heuer 9/10 3136 days 26%
Oram Salem 6/10 3136 days 22%
Lea Roser 9/10 3145 days 26%
Jitka Krejcova 10/10 3145 days 26%
Michal Sturma 9/10 3145 days 26%
Stientje van den Heuvel 8/10 3145 days 24%
Tom Somers 9/10 3145 days 26%
Brandon Wells 8/10 3146 days 24%
Tim Vennewold 9/10 3146 days 26%
Katharina 8/10 3146 days 24%
Lorna and Seb 9/10 3162 days 25%
Kristin Denny 8/10 3169 days 23%
Wendy Ward 10/10 3175 days 24%
Michal Maly 9/10 3185 days 24%
Michael Nolan 10/10 3187 days 24%
Hanneke P 7/10 3218 days 20%
Katharina Pape 8/10 3247 days 19%
Camille 7/10 3254 days 18%
Petr Stepanek 10/10 3516 days 6%
Larry Curtiss 10/10 3521 days 6%
nztintin 10/10 3524 days 6%
Marion Hassink 7/10 3530 days 5%
Stam 6/10 3535 days 4%
Ed & Katie Riches 8/10 3536 days 5%
Seth & Carla 10/10 3538 days 5%
Peter Putz 10/10 3538 days 5%
Tadej Ferjan 10/10 3538 days 5%
Nico Welagen 10/10 3539 days 5%
Alan Findlay 9/10 3539 days 5%
Andreas Kristiansen 10/10 3547 days 5%
Arnoldus Bergmans 10/10 3619 days 1%
Kai 10/10 3621 days 1%
Christoph 9/10 3624 days 1%
Jory Singer 8/10 3630 days 0%
Scott & Madeleine Bancroft 9/10 3635 days 0%
Kimberly St Louis 10/10 3829 days 26%
Lisa Milton 10/10 3852 days 26%
Rob O'Neill 10/10 3861 days 26%
Laura Thrower 10/10 3864 days 26%
Ofir Avimeir 8/10 3868 days 25%
Zachary Steinberg 9/10 3869 days 26%
Brian Jones 9/10 3869 days 26%
Sarah and Uli Glas 9/10 3870 days 26%
Boi Sagarra 8/10 3873 days 25%
John Tinus 8/10 3874 days 25%
Stefanie 8/10 3875 days 25%
Alex 8/10 3877 days 25%
Fredrik Thornell 8/10 3880 days 25%
Siggi Wick 9/10 3881 days 26%
Bruce & Elaine Chote 10/10 3882 days 26%
Estel la Prado 9/10 3884 days 26%
Jeff and Carey Brown 10/10 3889 days 26%
LandJ 7/10 3890 days 24%
Katie Mitchell 9/10 3890 days 26%
Galamez 9/10 3897 days 26%
Mr & Mrs Mackie 9/10 3900 days 26%
Thomas Reidinger 6/10 3904 days 21%
G Elliason 9/10 3904 days 26%
Van den Borne 9/10 3904 days 26%
Laura Hayes 10/10 3905 days 26%
Brian Lind 7/10 3905 days 24%
Chloe Finster 10/10 3905 days 26%
Jol Balder 8/10 3906 days 25%
Robert Haidt 10/10 3911 days 26%
VisualDelight 10/10 4133 days 26%
lindam 10/10 4224 days 26%
Martina Pankova 9/10 4230 days 26%
Neal 10/10 4268 days 26%
Bouwma 8/10 4276 days 25%
Mattias Thorm 9/10 4277 days 26%
Erik Hummelmose 8/10 4279 days 25%
Ian E 10/10 4279 days 26%
Kane Chain 9/10 4300 days 26%
johnma 10/10 4334 days 26%
ingeh 8/10 4338 days 25%
Jerry 8/10 4345 days 25%
Decuq 10/10 4356 days 26%
Carl and Angela Rapihana 8/10 4368 days 25%
Graham Butt 10/10 4368 days 26%
tessac 9/10 4470 days 26%
andriesk 9/10 4471 days 26%
nickm 10/10 4544 days 26%
Sofie 10/10 4559 days 26%
streneer 10/10 4576 days 26%
ElleGermany 9/10 4577 days 26%
JonK 9/10 4577 days 26%
NicolaW 10/10 4581 days 26%
DirkGermany 10/10 4584 days 26%
Bridget 10/10 4593 days 26%
Roy 9/10 4593 days 26%
HenizV 9/10 4598 days 26%
CraigB 10/10 4601 days 26%
familytravellers 7/10 4601 days 24%
Rissmann 10/10 4605 days 26%
Sara Hansson 10/10 4606 days 26%
Frank 9/10 4606 days 26%
KurtL 8/10 4607 days 25%
SteveW 8/10 4608 days 25%
Peter Bowen-Simpkins 9/10 4609 days 26%
Joel 9/10 4609 days 26%
Suzie Lechner 10/10 4609 days 26%
KathrinS 9/10 4609 days 26%
Debbie 7/10 4612 days 24%
Stolz 9/10 4612 days 26%
Ulli 9/10 4613 days 26%
Tatjane 8/10 4620 days 25%
Claudia 8/10 4621 days 25%
SimonR 8/10 4623 days 25%
SonjaG 9/10 4623 days 26%
Steve 7/10 4623 days 24%
AdelineC 8/10 4624 days 25%
RobC1 7/10 4624 days 24%
RichardB1 6/10 4624 days 21%
JoT 7/10 4624 days 24%
Olly 10/10 4625 days 26%
Klaus 9/10 4625 days 26%
JanetH 8/10 4637 days 25%
StefanieW 8/10 4639 days 25%
schenk 8/10 4639 days 25%
groenewold 7/10 4653 days 24%
Jessy 5/10 4653 days 21%
Wilco 7/10 4661 days 24%
Bernd 8/10 4662 days 25%
Ruben 8/10 4662 days 25%
Paul 10/10 4665 days 26%
Loren 10/10 4693 days 26%
DavidO 8/10 4696 days 25%
Peter 9/10 4701 days 26%
David 10/10 4702 days 26%
Kylie 8/10 4706 days 25%
Ursula 9/10 4719 days 26%
Carrie 8/10 4736 days 25%
David 10/10 4766 days 26%
Howard 9/10 4784 days 26%
Chris 8/10 4966 days 25%
Anthony 8/10 4969 days 25%
Sandra Verbaarschot 10/10 4969 days 26%
Omer Harron 10/10 4969 days 26%
angela 9/10 4972 days 26%
Kerstin Brantryd 5/10 4976 days 21%
Sanne 10/10 4982 days 26%
Tessa McCormick 9/10 4986 days 26%
Sally and David Wallis 10/10 4989 days 26%
Martens 8/10 4990 days 25%
Dan Adamson 9/10 5008 days 26%
Ben 7/10 5074 days 24%
Kirsty Ranger 9/10 5149 days 26%
Andy Chapman 8/10 5191 days 25%
ranker_34 5/10 5191 days 21%
Jo 9/10 5191 days 26%
Matous 10/10 5310 days 26%
Stefan&Gerte 7/10 5313 days 24%
Jenny 9/10 5313 days 26%
Paul Yacoumis 8/10 5317 days 25%
Deloraine 7/10 5326 days 24%
Denise Nick 9/10 5328 days 26%
Daniel 10/10 5333 days 26%
Martin Smith 8/10 5336 days 25%
Susan 8/10 5339 days 25%
sebastian 10/10 5340 days 26%
ranker_110 9/10 5347 days 26%
Stefan 8/10 5349 days 25%
Svenja 7/10 5354 days 24%
Hirsh 10/10 5359 days 26%

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 Southern Discoveries experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.73% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 54 days. However the Southern Discoveries 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 Southern Discoveries experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -3.67%
198 -3.69%
199 -3.71%
200 -3.73%
201 -3.75%
202 -3.77%
203 -3.78%

Final Ranking Score

84%

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.