Hi, 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 Stray.
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.
Stray
Valid Reviews
195 Valid Reviews
The Stray experience has a total of 202 reviews. There are 195 valid reviews that are included when calculating the ranking score and 7 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 195 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 62 |
|
32% |
| 9/10 | 42 |
|
22% |
| 8/10 | 36 |
|
18% |
| 7/10 | 31 |
|
16% |
| 6/10 | 9 |
|
5% |
| 5/10 | 7 |
|
4% |
| 4/10 | 3 |
|
2% |
| 3/10 | 5 |
|
3% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
83.03% Average
The raw data average (mean) for all the Stray valid reviews is 83.03% and is based on 195 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
101 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 195 valid reviews, the experience has 101 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 101 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 10 |
|
10% |
| 9/10 | 15 |
|
15% |
| 8/10 | 30 |
|
30% |
| 7/10 | 28 |
|
28% |
| 6/10 | 6 |
|
6% |
| 5/10 | 4 |
|
4% |
| 4/10 | 3 |
|
3% |
| 3/10 | 5 |
|
5% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
74.65% Average
The raw data average (mean) for all the Stray face-to-face reviews is 74.65% and is based on 101 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
84.03%
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 |
|---|---|---|---|
| Atte | 6/10 | 2880 days | 100% |
| Tom C | 10/10 | 3670 days | 52% |
| Jodie | 10/10 | 3670 days | 52% |
| Paul | 10/10 | 3670 days | 52% |
| Christin Ossege | 10/10 | 3792 days | 42% |
| Theodore Trozinski | 9/10 | 3852 days | 37% |
| Phil Hartmann | 10/10 | 4005 days | 25% |
| dana forrest | 10/10 | 4097 days | 17% |
| Abbi Smith | 10/10 | 4158 days | 12% |
| Nicko Wong | 10/10 | 4189 days | 10% |
| Jodine | 10/10 | 4217 days | 8% |
| Samuel Berwick | 10/10 | 4217 days | 8% |
| Amy Jellings | 10/10 | 4309 days | 0% |
| Anna Elden | 9/10 | 4309 days | 0% |
| Andrea Leichtl | 10/10 | 4524 days | 36% |
| Johanna Molenaar | 7/10 | 4524 days | 33% |
| Claudia Bauch | 3/10 | 4553 days | 17% |
| Charlotte Wilson | 10/10 | 4554 days | 36% |
| Chris Luebbi | 8/10 | 4555 days | 35% |
| jason beinstein | 9/10 | 4582 days | 36% |
| discoveringaway | 9/10 | 4583 days | 36% |
| ieva m | 8/10 | 4614 days | 35% |
| Sonia | 10/10 | 4614 days | 36% |
| Zsolt | 10/10 | 4614 days | 36% |
| Victoria Wander | 10/10 | 4614 days | 36% |
| TtotheT13 | 9/10 | 4645 days | 36% |
| Kim O'Neill | 10/10 | 4675 days | 36% |
| Maia Kazaks | 8/10 | 4675 days | 35% |
| Colette Keely | 10/10 | 4706 days | 36% |
| Jen Hards | 10/10 | 4735 days | 36% |
| Thomas Jones | 10/10 | 4766 days | 36% |
| Raj Singh | 10/10 | 4766 days | 36% |
| Sohie | 9/10 | 4925 days | 36% |
| Robin Andersson | 9/10 | 4948 days | 36% |
| Megan Gallagher | 10/10 | 4979 days | 36% |
| Andy Brown | 10/10 | 4979 days | 36% |
| Vinnie K | 10/10 | 5040 days | 36% |
| Heather_Oz | 9/10 | 5100 days | 36% |
| luciasolda | 10/10 | 5162 days | 36% |
| jennyj | 10/10 | 5192 days | 36% |
| dwehrtmann | 9/10 | 5223 days | 36% |
| Evaislief | 10/10 | 5254 days | 36% |
| Malena | 10/10 | 5285 days | 36% |
| navilink | 10/10 | 5285 days | 36% |
| meganb04 | 10/10 | 5285 days | 36% |
| MaryG | 10/10 | 5285 days | 36% |
| JoPycroft | 10/10 | 5285 days | 36% |
| lovebyname | 9/10 | 5285 days | 36% |
| Sonia Sennane | 7/10 | 5286 days | 33% |
| Tamara McVey | 7/10 | 5297 days | 33% |
| Rachel | 7/10 | 5299 days | 33% |
| Danielle & Jobbe | 8/10 | 5299 days | 35% |
| Andy Bridgman | 8/10 | 5299 days | 35% |
| Fiona Finke | 6/10 | 5305 days | 30% |
| Miron & Hendrik | 8/10 | 5309 days | 35% |
| marielou | 10/10 | 5314 days | 36% |
| iainmcgin | 10/10 | 5314 days | 36% |
| redkeels | 10/10 | 5314 days | 36% |
| lulu | 6/10 | 5345 days | 30% |
| Boogie | 5/10 | 5376 days | 26% |
| isha | 9/10 | 5376 days | 36% |
| pepper | 9/10 | 5406 days | 36% |
| Kez | 10/10 | 5437 days | 36% |
| Brilly01 | 8/10 | 5437 days | 35% |
| yens123 | 9/10 | 5437 days | 36% |
| louiset | 9/10 | 5437 days | 36% |
| siek09 | 9/10 | 5466 days | 36% |
| rosey | 10/10 | 5497 days | 36% |
| Cadz | 10/10 | 5497 days | 36% |
| natalietrueman84 | 10/10 | 5528 days | 36% |
| Josie | 10/10 | 5528 days | 36% |
| Scott_and_Stephanie | 9/10 | 5620 days | 36% |
| Samantha | 10/10 | 5620 days | 36% |
| Tracey Airiscough | 9/10 | 5642 days | 36% |
| Vanessa Hanzen | 4/10 | 5643 days | 22% |
| Lauren McKeone | 7/10 | 5649 days | 33% |
| Faye Cox | 7/10 | 5649 days | 33% |
| pudddddin | 9/10 | 5651 days | 36% |
| alicevarren | 9/10 | 5651 days | 36% |
| irisheyes | 7/10 | 5651 days | 33% |
| Steff | 7/10 | 5671 days | 33% |
| Forestal Youri | 7/10 | 5671 days | 33% |
| Amanda Craig | 8/10 | 5673 days | 35% |
| Olle Beide | 8/10 | 5679 days | 35% |
| JonathanMills | 8/10 | 5679 days | 35% |
| lisa | 9/10 | 5710 days | 36% |
| phydough | 6/10 | 5741 days | 30% |
| zippy | 10/10 | 5831 days | 36% |
| TerriH | 10/10 | 5862 days | 36% |
| ciara | 10/10 | 5893 days | 36% |
| mel1407 | 10/10 | 5893 days | 36% |
| Claram | 9/10 | 5923 days | 36% |
| joycevanb | 7/10 | 5954 days | 33% |
| JohnG | 10/10 | 5954 days | 36% |
| nicolejr413 | 9/10 | 5985 days | 36% |
| Antoine Migault | 8/10 | 6006 days | 35% |
| Christine T | 7/10 | 6010 days | 33% |
| Kay Beaumont | 8/10 | 6018 days | 35% |
| Johan | 7/10 | 6018 days | 33% |
| S Millet | 9/10 | 6022 days | 36% |
| Jens van Evp | 9/10 | 6040 days | 36% |
| Max Van der Zalm | 9/10 | 6040 days | 36% |
| Emily Walters | 7/10 | 6042 days | 33% |
| Brett Oz | 9/10 | 6075 days | 36% |
| greenbex | 9/10 | 6075 days | 36% |
| simonbo | 3/10 | 6090 days | 17% |
| katesc | 9/10 | 6095 days | 36% |
| martint | 6/10 | 6099 days | 30% |
| richelle | 7/10 | 6099 days | 33% |
| rosalindm | 8/10 | 6100 days | 35% |
| katepat | 8/10 | 6106 days | 35% |
| Beau | 5/10 | 6106 days | 26% |
| Debbie Rathbone | 10/10 | 6113 days | 36% |
| Ricarda | 3/10 | 6116 days | 17% |
| Malinka Nuefeld | 4/10 | 6116 days | 22% |
| Martin | 9/10 | 6116 days | 36% |
| Thomas Willi | 8/10 | 6116 days | 35% |
| Jess Pasos | 9/10 | 6125 days | 36% |
| stettim | 10/10 | 6167 days | 36% |
| Philipp | 9/10 | 6167 days | 36% |
| Holly Mrowiec | 10/10 | 6196 days | 36% |
| Sophie Keate | 10/10 | 6233 days | 36% |
| Sam Lightfoot | 10/10 | 6233 days | 36% |
| Jenny Lee | 7/10 | 6255 days | 33% |
| Cat Payne | 9/10 | 6262 days | 36% |
| Catherine Smiles | 10/10 | 6263 days | 36% |
| Nikki Turner | 9/10 | 6270 days | 36% |
| TaraD | 10/10 | 6348 days | 36% |
| BiancaA | 9/10 | 6348 days | 36% |
| hibbler | 10/10 | 6350 days | 36% |
| ferdinande | 7/10 | 6351 days | 33% |
| mariea | 8/10 | 6361 days | 35% |
| JennekeK | 6/10 | 6362 days | 30% |
| Ross | 5/10 | 6364 days | 26% |
| MarielR | 7/10 | 6368 days | 33% |
| NikW | 8/10 | 6368 days | 35% |
| Anna Skeer | 9/10 | 6391 days | 36% |
| EmmaB1 | 8/10 | 6396 days | 35% |
| BethanD | 9/10 | 6397 days | 36% |
| renanf | 8/10 | 6400 days | 35% |
| Laura Muser | 9/10 | 6408 days | 36% |
| Alan Gallagher | 7/10 | 6409 days | 33% |
| Ellen Perrin | 9/10 | 6409 days | 36% |
| Julia | 7/10 | 6412 days | 33% |
| Philipp | 10/10 | 6414 days | 36% |
| Marieke | 3/10 | 6416 days | 17% |
| Katie | 10/10 | 6418 days | 36% |
| Ann-Kathren | 7/10 | 6422 days | 33% |
| Sonja | 8/10 | 6454 days | 35% |
| Claudia Schmidt | 9/10 | 6466 days | 36% |
| sylvia | 8/10 | 6471 days | 35% |
| Amy Newton | 10/10 | 6474 days | 36% |
| debsnz | 10/10 | 6487 days | 36% |
| Nicole | 3/10 | 6496 days | 17% |
| Spike | 7/10 | 6556 days | 33% |
| Sam Prior | 8/10 | 6565 days | 35% |
| Marco | 7/10 | 6589 days | 33% |
| Meike Biel | 8/10 | 6699 days | 35% |
| Helen | 8/10 | 6699 days | 35% |
| Mark | 7/10 | 6720 days | 33% |
| Julie | 5/10 | 6730 days | 26% |
| Marlo | 7/10 | 6737 days | 33% |
| Simon Mills | 8/10 | 6747 days | 35% |
| Sayaka | 4/10 | 6762 days | 22% |
| Camille | 10/10 | 6763 days | 36% |
| Anders | 9/10 | 6763 days | 36% |
| Laura | 8/10 | 6786 days | 35% |
| Ian | 7/10 | 6790 days | 33% |
| Carole Roccia | 6/10 | 6791 days | 30% |
| Thierry Berdah | 8/10 | 6793 days | 35% |
| Helena | 8/10 | 6793 days | 35% |
| Peter Katafey | 6/10 | 6793 days | 30% |
| Lindsey Woosnam | 5/10 | 6793 days | 26% |
| Katherine | 7/10 | 6796 days | 33% |
| Fred | 6/10 | 6797 days | 30% |
| Rob | 5/10 | 6797 days | 26% |
| Gav | 10/10 | 6797 days | 36% |
| Tom Anson | 8/10 | 6798 days | 35% |
| Paul Cowie | 10/10 | 6825 days | 36% |
| Jim | 8/10 | 6834 days | 35% |
| Willemien | 7/10 | 6842 days | 33% |
| Helen | 8/10 | 7067 days | 35% |
| David | 5/10 | 7070 days | 26% |
| Stefan | 7/10 | 7070 days | 33% |
| Gwen | 8/10 | 7073 days | 35% |
| Hanneke | 8/10 | 7077 days | 35% |
| Matt | 7/10 | 7077 days | 33% |
| Alex | 8/10 | 7077 days | 35% |
| Johnny | 8/10 | 7077 days | 35% |
| Aaron | 9/10 | 7077 days | 36% |
| Hilary | 10/10 | 7086 days | 36% |
| Nina | 8/10 | 7122 days | 35% |
| Italy | 9/10 | 7122 days | 36% |
| Helle | 7/10 | 7122 days | 33% |
| KikiNelissen | 7/10 | 7128 days | 33% |
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 Stray experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.36% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 110 days. However the Stray 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 Stray experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.33% |
| 198 | -2.34% |
| 199 | -2.35% |
| 200 | -2.36% |
| 201 | -2.37% |
| 202 | -2.39% |
| 203 | -2.40% |
| … | … |
Balancing Adjustment
2.56% 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.