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

87.39%

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 1536 days 82%
Jocelyn Booy 9/10 1561 days 100%
David Horley 7/10 1575 days 89%
Vallee Manon 9/10 1608 days 98%
Nanda Dyke 9/10 1634 days 96%
victor diego 7/10 1652 days 86%
Samuel Michalak 10/10 1657 days 95%
Laura Munguira Vadillo 10/10 1881 days 83%
Benedikt Hang 8/10 1888 days 78%
Jorge Gonzoleis 8/10 1891 days 78%
Lauren Goebel 10/10 1895 days 83%
Rahel Baufeld 8/10 1903 days 78%
Peter Hodgson 10/10 1929 days 81%
doug fiddes 10/10 1955 days 79%
Dan Wilson 7/10 1971 days 71%
Corrie Medinea 8/10 1979 days 74%
Gracen Verheryden 10/10 1982 days 78%
Jennifer Hoyles 10/10 1986 days 78%
Lenka Korinkova 7/10 2248 days 57%
Rebecca Wharton 9/10 2276 days 63%
Andy Jobst 8/10 2351 days 55%
Rawiri johnston 10/10 2534 days 49%
Marek Heiurich 7/10 2604 days 40%
Matt Weston 10/10 2609 days 45%
Henrik Bours 8/10 2610 days 42%
Svenja Trubenbach 9/10 2610 days 45%
Sheila Galpin 9/10 2624 days 44%
Guillaume 9/10 2635 days 44%
Andreas Jung 9/10 2650 days 43%
Inga Memmen 10/10 2652 days 43%
Alacchi Moustier 10/10 2667 days 42%
Guy David 9/10 2675 days 42%
Michael Rohn 8/10 2682 days 39%
Rainer 9/10 2966 days 26%
Clarissa Hanck 9/10 2966 days 26%
Michael Heuer 9/10 2968 days 26%
Oram Salem 6/10 2968 days 20%
Lea Roser 9/10 2977 days 26%
Jitka Krejcova 10/10 2977 days 26%
Michal Sturma 9/10 2977 days 26%
Stientje van den Heuvel 8/10 2977 days 24%
Tom Somers 9/10 2977 days 26%
Brandon Wells 8/10 2978 days 24%
Tim Vennewold 9/10 2978 days 26%
Katharina 8/10 2978 days 24%
Lorna and Seb 9/10 2994 days 25%
Kristin Denny 8/10 3001 days 23%
Wendy Ward 10/10 3007 days 24%
Michal Maly 9/10 3017 days 24%
Michael Nolan 10/10 3019 days 24%
Hanneke P 7/10 3050 days 19%
Katharina Pape 8/10 3079 days 19%
Camille 7/10 3086 days 18%
Petr Stepanek 10/10 3348 days 6%
Larry Curtiss 10/10 3353 days 6%
nztintin 10/10 3356 days 6%
Marion Hassink 7/10 3362 days 4%
Stam 6/10 3367 days 3%
Ed & Katie Riches 8/10 3368 days 5%
Seth & Carla 10/10 3370 days 5%
Peter Putz 10/10 3370 days 5%
Tadej Ferjan 10/10 3370 days 5%
Nico Welagen 10/10 3371 days 5%
Alan Findlay 9/10 3371 days 5%
Andreas Kristiansen 10/10 3379 days 5%
Arnoldus Bergmans 10/10 3451 days 1%
Kai 10/10 3453 days 1%
Christoph 9/10 3456 days 1%
Jory Singer 8/10 3462 days 0%
Scott & Madeleine Bancroft 9/10 3467 days 0%
Kimberly St Louis 10/10 3661 days 17%
Lisa Milton 10/10 3684 days 17%
Rob O'Neill 10/10 3693 days 17%
Laura Thrower 10/10 3696 days 17%
Ofir Avimeir 8/10 3700 days 16%
Zachary Steinberg 9/10 3701 days 17%
Brian Jones 9/10 3701 days 17%
Sarah and Uli Glas 9/10 3702 days 17%
Boi Sagarra 8/10 3705 days 16%
John Tinus 8/10 3706 days 16%
Stefanie 8/10 3707 days 16%
Alex 8/10 3709 days 16%
Fredrik Thornell 8/10 3712 days 16%
Siggi Wick 9/10 3713 days 17%
Bruce & Elaine Chote 10/10 3714 days 17%
Estel la Prado 9/10 3716 days 17%
Jeff and Carey Brown 10/10 3721 days 17%
LandJ 7/10 3722 days 15%
Katie Mitchell 9/10 3722 days 17%
Galamez 9/10 3729 days 17%
Mr & Mrs Mackie 9/10 3732 days 17%
Thomas Reidinger 6/10 3736 days 13%
G Elliason 9/10 3736 days 17%
Van den Borne 9/10 3736 days 17%
Laura Hayes 10/10 3737 days 17%
Brian Lind 7/10 3737 days 15%
Chloe Finster 10/10 3737 days 17%
Jol Balder 8/10 3738 days 16%
Robert Haidt 10/10 3743 days 17%
VisualDelight 10/10 3965 days 17%
lindam 10/10 4056 days 17%
Martina Pankova 9/10 4062 days 17%
Neal 10/10 4100 days 17%
Bouwma 8/10 4108 days 16%
Mattias Thorm 9/10 4109 days 17%
Erik Hummelmose 8/10 4111 days 16%
Ian E 10/10 4111 days 17%
Kane Chain 9/10 4132 days 17%
johnma 10/10 4166 days 17%
ingeh 8/10 4170 days 16%
Jerry 8/10 4177 days 16%
Decuq 10/10 4188 days 17%
Carl and Angela Rapihana 8/10 4200 days 16%
Graham Butt 10/10 4200 days 17%
tessac 9/10 4302 days 17%
andriesk 9/10 4303 days 17%
nickm 10/10 4376 days 17%
Sofie 10/10 4391 days 17%
streneer 10/10 4408 days 17%
ElleGermany 9/10 4409 days 17%
JonK 9/10 4409 days 17%
NicolaW 10/10 4413 days 17%
DirkGermany 10/10 4416 days 17%
Bridget 10/10 4426 days 17%
Roy 9/10 4426 days 17%
HenizV 9/10 4431 days 17%
CraigB 10/10 4433 days 17%
familytravellers 7/10 4433 days 15%
Rissmann 10/10 4437 days 17%
Sara Hansson 10/10 4438 days 17%
Frank 9/10 4439 days 17%
KurtL 8/10 4439 days 16%
SteveW 8/10 4440 days 16%
Peter Bowen-Simpkins 9/10 4441 days 17%
Joel 9/10 4441 days 17%
Suzie Lechner 10/10 4441 days 17%
KathrinS 9/10 4441 days 17%
Debbie 7/10 4445 days 15%
Stolz 9/10 4445 days 17%
Ulli 9/10 4445 days 17%
Tatjane 8/10 4453 days 16%
Claudia 8/10 4454 days 16%
SimonR 8/10 4455 days 16%
SonjaG 9/10 4455 days 17%
Steve 7/10 4455 days 15%
AdelineC 8/10 4456 days 16%
RobC1 7/10 4456 days 15%
RichardB1 6/10 4456 days 13%
JoT 7/10 4456 days 15%
Olly 10/10 4457 days 17%
Klaus 9/10 4458 days 17%
JanetH 8/10 4469 days 16%
StefanieW 8/10 4471 days 16%
schenk 8/10 4472 days 16%
groenewold 7/10 4486 days 15%
Jessy 5/10 4486 days 12%
Wilco 7/10 4494 days 15%
Bernd 8/10 4494 days 16%
Ruben 8/10 4495 days 16%
Paul 10/10 4498 days 17%
Loren 10/10 4526 days 17%
DavidO 8/10 4528 days 16%
Peter 9/10 4534 days 17%
David 10/10 4535 days 17%
Kylie 8/10 4538 days 16%
Ursula 9/10 4552 days 17%
Carrie 8/10 4568 days 16%
David 10/10 4599 days 17%
Howard 9/10 4617 days 17%
Chris 8/10 4798 days 16%
Anthony 8/10 4801 days 16%
Sandra Verbaarschot 10/10 4801 days 17%
Omer Harron 10/10 4801 days 17%
angela 9/10 4804 days 17%
Kerstin Brantryd 5/10 4808 days 12%
Sanne 10/10 4814 days 17%
Tessa McCormick 9/10 4818 days 17%
Sally and David Wallis 10/10 4821 days 17%
Martens 8/10 4822 days 16%
Dan Adamson 9/10 4840 days 17%
Ben 7/10 4906 days 15%
Kirsty Ranger 9/10 4981 days 17%
Andy Chapman 8/10 5023 days 16%
ranker_34 5/10 5023 days 12%
Jo 9/10 5023 days 17%
Matous 10/10 5142 days 17%
Stefan&Gerte 7/10 5145 days 15%
Jenny 9/10 5145 days 17%
Paul Yacoumis 8/10 5149 days 16%
Deloraine 7/10 5158 days 15%
Denise Nick 9/10 5160 days 17%
Daniel 10/10 5165 days 17%
Martin Smith 8/10 5168 days 16%
Susan 8/10 5171 days 16%
sebastian 10/10 5172 days 17%
ranker_110 9/10 5179 days 17%
Stefan 8/10 5181 days 16%
Svenja 7/10 5186 days 15%
Hirsh 10/10 5191 days 17%

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

-2.93% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 85 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 -2.89%
198 -2.90%
199 -2.92%
200 -2.93%
201 -2.95%
202 -2.96%
203 -2.98%

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.