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 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.
Southern Discoveries
Valid Reviews
202 Valid Reviews
The Southern Discoveries experience has a total of 202 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 202 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 64 |
|
32% |
| 9/10 | 59 |
|
29% |
| 8/10 | 48 |
|
24% |
| 7/10 | 21 |
|
10% |
| 6/10 | 5 |
|
2% |
| 5/10 | 3 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 2 |
|
1% |
86.58% Average
The raw data average (mean) for all the Southern Discoveries valid reviews is 86.58% and is based on 202 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 202 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
74.80%
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 |
|---|---|---|---|
| Chris Creed | 10/10 | 40 days | 100% |
| Hirash | 1/10 | 102 days | 40% |
| Kat | 1/10 | 193 days | 40% |
| Remy and Rebecca Mans | 6/10 | 2940 days | 2% |
| Jocelyn Booy | 9/10 | 2965 days | 3% |
| David Horley | 7/10 | 2979 days | 3% |
| Vallee Manon | 9/10 | 3012 days | 3% |
| Nanda Dyke | 9/10 | 3038 days | 3% |
| victor diego | 7/10 | 3056 days | 2% |
| Samuel Michalak | 10/10 | 3061 days | 3% |
| Laura Munguira Vadillo | 10/10 | 3285 days | 2% |
| Benedikt Hang | 8/10 | 3292 days | 2% |
| Jorge Gonzoleis | 8/10 | 3295 days | 2% |
| Lauren Goebel | 10/10 | 3299 days | 2% |
| Rahel Baufeld | 8/10 | 3307 days | 2% |
| Peter Hodgson | 10/10 | 3333 days | 2% |
| doug fiddes | 10/10 | 3358 days | 2% |
| Dan Wilson | 7/10 | 3375 days | 2% |
| Corrie Medinea | 8/10 | 3383 days | 2% |
| Gracen Verheryden | 10/10 | 3386 days | 2% |
| Jennifer Hoyles | 10/10 | 3390 days | 2% |
| Lenka Korinkova | 7/10 | 3652 days | 1% |
| Rebecca Wharton | 9/10 | 3680 days | 1% |
| Andy Jobst | 8/10 | 3755 days | 1% |
| Rawiri johnston | 10/10 | 3938 days | 1% |
| Marek Heiurich | 7/10 | 4008 days | 1% |
| Matt Weston | 10/10 | 4013 days | 1% |
| Henrik Bours | 8/10 | 4014 days | 1% |
| Svenja Trubenbach | 9/10 | 4014 days | 1% |
| Sheila Galpin | 9/10 | 4028 days | 1% |
| Guillaume | 9/10 | 4039 days | 1% |
| Andreas Jung | 9/10 | 4054 days | 1% |
| Inga Memmen | 10/10 | 4056 days | 1% |
| Alacchi Moustier | 10/10 | 4071 days | 1% |
| Guy David | 9/10 | 4079 days | 1% |
| Michael Rohn | 8/10 | 4086 days | 1% |
| Rainer | 9/10 | 4370 days | 0% |
| Clarissa Hanck | 9/10 | 4370 days | 0% |
| Michael Heuer | 9/10 | 4372 days | 0% |
| Oram Salem | 6/10 | 4372 days | 0% |
| Lea Roser | 9/10 | 4381 days | 1% |
| Jitka Krejcova | 10/10 | 4381 days | 1% |
| Michal Sturma | 9/10 | 4381 days | 1% |
| Stientje van den Heuvel | 8/10 | 4381 days | 1% |
| Tom Somers | 9/10 | 4381 days | 1% |
| Brandon Wells | 8/10 | 4382 days | 1% |
| Tim Vennewold | 9/10 | 4382 days | 1% |
| Katharina | 8/10 | 4382 days | 1% |
| Lorna and Seb | 9/10 | 4398 days | 1% |
| Kristin Denny | 8/10 | 4405 days | 1% |
| Wendy Ward | 10/10 | 4411 days | 1% |
| Michal Maly | 9/10 | 4421 days | 1% |
| Michael Nolan | 10/10 | 4423 days | 1% |
| Hanneke P | 7/10 | 4454 days | 1% |
| Katharina Pape | 8/10 | 4483 days | 1% |
| Camille | 7/10 | 4490 days | 1% |
| Petr Stepanek | 10/10 | 4752 days | 1% |
| Larry Curtiss | 10/10 | 4757 days | 1% |
| nztintin | 10/10 | 4760 days | 1% |
| Marion Hassink | 7/10 | 4766 days | 1% |
| Stam | 6/10 | 4771 days | 1% |
| Ed & Katie Riches | 8/10 | 4772 days | 1% |
| Seth & Carla | 10/10 | 4774 days | 1% |
| Peter Putz | 10/10 | 4774 days | 1% |
| Tadej Ferjan | 10/10 | 4774 days | 1% |
| Nico Welagen | 10/10 | 4775 days | 1% |
| Alan Findlay | 9/10 | 4775 days | 1% |
| Andreas Kristiansen | 10/10 | 4783 days | 1% |
| Arnoldus Bergmans | 10/10 | 4855 days | 1% |
| Kai | 10/10 | 4857 days | 1% |
| Christoph | 9/10 | 4860 days | 1% |
| Jory Singer | 8/10 | 4866 days | 1% |
| Scott & Madeleine Bancroft | 9/10 | 4871 days | 1% |
| Kimberly St Louis | 10/10 | 5065 days | 1% |
| Lisa Milton | 10/10 | 5088 days | 1% |
| Rob O'Neill | 10/10 | 5097 days | 1% |
| Laura Thrower | 10/10 | 5100 days | 1% |
| Ofir Avimeir | 8/10 | 5104 days | 1% |
| Zachary Steinberg | 9/10 | 5105 days | 1% |
| Brian Jones | 9/10 | 5105 days | 1% |
| Sarah and Uli Glas | 9/10 | 5106 days | 1% |
| Boi Sagarra | 8/10 | 5109 days | 1% |
| John Tinus | 8/10 | 5110 days | 1% |
| Stefanie | 8/10 | 5111 days | 1% |
| Alex | 8/10 | 5113 days | 1% |
| Fredrik Thornell | 8/10 | 5116 days | 1% |
| Siggi Wick | 9/10 | 5117 days | 1% |
| Bruce & Elaine Chote | 10/10 | 5118 days | 1% |
| Estel la Prado | 9/10 | 5120 days | 1% |
| Jeff and Carey Brown | 10/10 | 5125 days | 1% |
| LandJ | 7/10 | 5126 days | 1% |
| Katie Mitchell | 9/10 | 5126 days | 1% |
| Galamez | 9/10 | 5133 days | 1% |
| Mr & Mrs Mackie | 9/10 | 5136 days | 1% |
| Thomas Reidinger | 6/10 | 5140 days | 1% |
| G Elliason | 9/10 | 5140 days | 1% |
| Van den Borne | 9/10 | 5140 days | 1% |
| Laura Hayes | 10/10 | 5141 days | 1% |
| Brian Lind | 7/10 | 5141 days | 1% |
| Chloe Finster | 10/10 | 5141 days | 1% |
| Jol Balder | 8/10 | 5142 days | 1% |
| Robert Haidt | 10/10 | 5147 days | 1% |
| VisualDelight | 10/10 | 5369 days | 1% |
| lindam | 10/10 | 5460 days | 1% |
| Martina Pankova | 9/10 | 5466 days | 1% |
| Neal | 10/10 | 5504 days | 1% |
| Bouwma | 8/10 | 5512 days | 1% |
| Mattias Thorm | 9/10 | 5513 days | 1% |
| Erik Hummelmose | 8/10 | 5515 days | 1% |
| Ian E | 10/10 | 5515 days | 1% |
| Kane Chain | 9/10 | 5536 days | 1% |
| johnma | 10/10 | 5570 days | 1% |
| ingeh | 8/10 | 5574 days | 1% |
| Jerry | 8/10 | 5581 days | 1% |
| Decuq | 10/10 | 5592 days | 1% |
| Carl and Angela Rapihana | 8/10 | 5604 days | 1% |
| Graham Butt | 10/10 | 5604 days | 1% |
| tessac | 9/10 | 5706 days | 1% |
| andriesk | 9/10 | 5707 days | 1% |
| nickm | 10/10 | 5780 days | 1% |
| Sofie | 10/10 | 5795 days | 1% |
| streneer | 10/10 | 5812 days | 1% |
| ElleGermany | 9/10 | 5813 days | 1% |
| JonK | 9/10 | 5813 days | 1% |
| NicolaW | 10/10 | 5817 days | 1% |
| DirkGermany | 10/10 | 5820 days | 1% |
| Bridget | 10/10 | 5829 days | 1% |
| Roy | 9/10 | 5829 days | 1% |
| HenizV | 9/10 | 5834 days | 1% |
| CraigB | 10/10 | 5837 days | 1% |
| familytravellers | 7/10 | 5837 days | 1% |
| Rissmann | 10/10 | 5841 days | 1% |
| Sara Hansson | 10/10 | 5842 days | 1% |
| Frank | 9/10 | 5842 days | 1% |
| KurtL | 8/10 | 5843 days | 1% |
| SteveW | 8/10 | 5844 days | 1% |
| Peter Bowen-Simpkins | 9/10 | 5845 days | 1% |
| Joel | 9/10 | 5845 days | 1% |
| Suzie Lechner | 10/10 | 5845 days | 1% |
| KathrinS | 9/10 | 5845 days | 1% |
| Debbie | 7/10 | 5848 days | 1% |
| Stolz | 9/10 | 5848 days | 1% |
| Ulli | 9/10 | 5849 days | 1% |
| Tatjane | 8/10 | 5856 days | 1% |
| Claudia | 8/10 | 5857 days | 1% |
| SimonR | 8/10 | 5859 days | 1% |
| SonjaG | 9/10 | 5859 days | 1% |
| Steve | 7/10 | 5859 days | 1% |
| AdelineC | 8/10 | 5860 days | 1% |
| RobC1 | 7/10 | 5860 days | 1% |
| RichardB1 | 6/10 | 5860 days | 1% |
| JoT | 7/10 | 5860 days | 1% |
| Olly | 10/10 | 5861 days | 1% |
| Klaus | 9/10 | 5861 days | 1% |
| JanetH | 8/10 | 5873 days | 1% |
| StefanieW | 8/10 | 5875 days | 1% |
| schenk | 8/10 | 5875 days | 1% |
| groenewold | 7/10 | 5889 days | 1% |
| Jessy | 5/10 | 5889 days | 1% |
| Wilco | 7/10 | 5897 days | 1% |
| Bernd | 8/10 | 5898 days | 1% |
| Ruben | 8/10 | 5898 days | 1% |
| Paul | 10/10 | 5901 days | 1% |
| Loren | 10/10 | 5929 days | 1% |
| DavidO | 8/10 | 5932 days | 1% |
| Peter | 9/10 | 5937 days | 1% |
| David | 10/10 | 5938 days | 1% |
| Kylie | 8/10 | 5942 days | 1% |
| Ursula | 9/10 | 5955 days | 1% |
| Carrie | 8/10 | 5971 days | 1% |
| David | 10/10 | 6002 days | 1% |
| Howard | 9/10 | 6020 days | 1% |
| Chris | 8/10 | 6202 days | 1% |
| Anthony | 8/10 | 6205 days | 1% |
| Sandra Verbaarschot | 10/10 | 6205 days | 1% |
| Omer Harron | 10/10 | 6205 days | 1% |
| angela | 9/10 | 6208 days | 1% |
| Kerstin Brantryd | 5/10 | 6212 days | 1% |
| Sanne | 10/10 | 6218 days | 1% |
| Tessa McCormick | 9/10 | 6222 days | 1% |
| Sally and David Wallis | 10/10 | 6225 days | 1% |
| Martens | 8/10 | 6226 days | 1% |
| Dan Adamson | 9/10 | 6244 days | 1% |
| Ben | 7/10 | 6310 days | 1% |
| Kirsty Ranger | 9/10 | 6385 days | 1% |
| Andy Chapman | 8/10 | 6427 days | 1% |
| ranker_34 | 5/10 | 6427 days | 1% |
| Jo | 9/10 | 6427 days | 1% |
| Matous | 10/10 | 6546 days | 1% |
| Stefan&Gerte | 7/10 | 6549 days | 1% |
| Jenny | 9/10 | 6549 days | 1% |
| Paul Yacoumis | 8/10 | 6553 days | 1% |
| Deloraine | 7/10 | 6562 days | 1% |
| Denise Nick | 9/10 | 6564 days | 1% |
| Daniel | 10/10 | 6569 days | 1% |
| Martin Smith | 8/10 | 6572 days | 1% |
| Susan | 8/10 | 6575 days | 1% |
| sebastian | 10/10 | 6576 days | 1% |
| ranker_110 | 9/10 | 6583 days | 1% |
| Stefan | 8/10 | 6585 days | 1% |
| Svenja | 7/10 | 6590 days | 1% |
| Hirsh | 10/10 | 6595 days | 1% |
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
-0.52% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 26 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 23 | -0.46% |
| 24 | -0.48% |
| 25 | -0.50% |
| 26 | -0.52% |
| 27 | -0.54% |
| 28 | -0.56% |
| 29 | -0.58% |
| … | … |
Balancing Adjustment
4.94% 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
79%
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.