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
84.28%
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 | 2739 days | 100% |
| Tom C | 10/10 | 3529 days | 53% |
| Jodie | 10/10 | 3529 days | 53% |
| Paul | 10/10 | 3529 days | 53% |
| Christin Ossege | 10/10 | 3651 days | 43% |
| Theodore Trozinski | 9/10 | 3711 days | 38% |
| Phil Hartmann | 10/10 | 3864 days | 25% |
| dana forrest | 10/10 | 3956 days | 18% |
| Abbi Smith | 10/10 | 4017 days | 13% |
| Nicko Wong | 10/10 | 4048 days | 10% |
| Jodine | 10/10 | 4076 days | 8% |
| Samuel Berwick | 10/10 | 4076 days | 8% |
| Amy Jellings | 10/10 | 4168 days | 0% |
| Anna Elden | 9/10 | 4168 days | 0% |
| Andrea Leichtl | 10/10 | 4383 days | 25% |
| Johanna Molenaar | 7/10 | 4383 days | 22% |
| Claudia Bauch | 3/10 | 4412 days | 6% |
| Charlotte Wilson | 10/10 | 4413 days | 25% |
| Chris Luebbi | 8/10 | 4414 days | 24% |
| jason beinstein | 9/10 | 4441 days | 25% |
| discoveringaway | 9/10 | 4442 days | 25% |
| ieva m | 8/10 | 4473 days | 24% |
| Sonia | 10/10 | 4473 days | 25% |
| Zsolt | 10/10 | 4473 days | 25% |
| Victoria Wander | 10/10 | 4473 days | 25% |
| TtotheT13 | 9/10 | 4504 days | 25% |
| Kim O'Neill | 10/10 | 4534 days | 25% |
| Maia Kazaks | 8/10 | 4534 days | 24% |
| Colette Keely | 10/10 | 4565 days | 25% |
| Jen Hards | 10/10 | 4595 days | 25% |
| Thomas Jones | 10/10 | 4626 days | 25% |
| Raj Singh | 10/10 | 4626 days | 25% |
| Sohie | 9/10 | 4784 days | 25% |
| Robin Andersson | 9/10 | 4807 days | 25% |
| Megan Gallagher | 10/10 | 4838 days | 25% |
| Andy Brown | 10/10 | 4838 days | 25% |
| Vinnie K | 10/10 | 4899 days | 25% |
| Heather_Oz | 9/10 | 4960 days | 25% |
| luciasolda | 10/10 | 5022 days | 25% |
| jennyj | 10/10 | 5052 days | 25% |
| dwehrtmann | 9/10 | 5083 days | 25% |
| Evaislief | 10/10 | 5113 days | 25% |
| Malena | 10/10 | 5144 days | 25% |
| navilink | 10/10 | 5144 days | 25% |
| meganb04 | 10/10 | 5144 days | 25% |
| MaryG | 10/10 | 5144 days | 25% |
| JoPycroft | 10/10 | 5144 days | 25% |
| lovebyname | 9/10 | 5144 days | 25% |
| Sonia Sennane | 7/10 | 5145 days | 22% |
| Tamara McVey | 7/10 | 5156 days | 22% |
| Rachel | 7/10 | 5158 days | 22% |
| Danielle & Jobbe | 8/10 | 5158 days | 24% |
| Andy Bridgman | 8/10 | 5158 days | 24% |
| Fiona Finke | 6/10 | 5164 days | 19% |
| Miron & Hendrik | 8/10 | 5168 days | 24% |
| marielou | 10/10 | 5173 days | 25% |
| iainmcgin | 10/10 | 5173 days | 25% |
| redkeels | 10/10 | 5173 days | 25% |
| lulu | 6/10 | 5204 days | 19% |
| Boogie | 5/10 | 5235 days | 15% |
| isha | 9/10 | 5235 days | 25% |
| pepper | 9/10 | 5265 days | 25% |
| Kez | 10/10 | 5296 days | 25% |
| Brilly01 | 8/10 | 5296 days | 24% |
| yens123 | 9/10 | 5296 days | 25% |
| louiset | 9/10 | 5296 days | 25% |
| siek09 | 9/10 | 5326 days | 25% |
| rosey | 10/10 | 5357 days | 25% |
| Cadz | 10/10 | 5357 days | 25% |
| natalietrueman84 | 10/10 | 5388 days | 25% |
| Josie | 10/10 | 5388 days | 25% |
| Scott_and_Stephanie | 9/10 | 5479 days | 25% |
| Samantha | 10/10 | 5479 days | 25% |
| Tracey Airiscough | 9/10 | 5501 days | 25% |
| Vanessa Hanzen | 4/10 | 5502 days | 10% |
| Lauren McKeone | 7/10 | 5508 days | 22% |
| Faye Cox | 7/10 | 5508 days | 22% |
| pudddddin | 9/10 | 5510 days | 25% |
| alicevarren | 9/10 | 5510 days | 25% |
| irisheyes | 7/10 | 5510 days | 22% |
| Steff | 7/10 | 5530 days | 22% |
| Forestal Youri | 7/10 | 5530 days | 22% |
| Amanda Craig | 8/10 | 5532 days | 24% |
| Olle Beide | 8/10 | 5538 days | 24% |
| JonathanMills | 8/10 | 5538 days | 24% |
| lisa | 9/10 | 5569 days | 25% |
| phydough | 6/10 | 5600 days | 19% |
| zippy | 10/10 | 5691 days | 25% |
| TerriH | 10/10 | 5722 days | 25% |
| ciara | 10/10 | 5753 days | 25% |
| mel1407 | 10/10 | 5753 days | 25% |
| Claram | 9/10 | 5783 days | 25% |
| joycevanb | 7/10 | 5814 days | 22% |
| JohnG | 10/10 | 5814 days | 25% |
| nicolejr413 | 9/10 | 5844 days | 25% |
| Antoine Migault | 8/10 | 5865 days | 24% |
| Christine T | 7/10 | 5869 days | 22% |
| Kay Beaumont | 8/10 | 5877 days | 24% |
| Johan | 7/10 | 5877 days | 22% |
| S Millet | 9/10 | 5881 days | 25% |
| Jens van Evp | 9/10 | 5899 days | 25% |
| Max Van der Zalm | 9/10 | 5899 days | 25% |
| Emily Walters | 7/10 | 5901 days | 22% |
| Brett Oz | 9/10 | 5934 days | 25% |
| greenbex | 9/10 | 5934 days | 25% |
| simonbo | 3/10 | 5949 days | 6% |
| katesc | 9/10 | 5954 days | 25% |
| martint | 6/10 | 5958 days | 19% |
| richelle | 7/10 | 5958 days | 22% |
| rosalindm | 8/10 | 5959 days | 24% |
| katepat | 8/10 | 5965 days | 24% |
| Beau | 5/10 | 5965 days | 15% |
| Debbie Rathbone | 10/10 | 5972 days | 25% |
| Ricarda | 3/10 | 5975 days | 6% |
| Malinka Nuefeld | 4/10 | 5975 days | 10% |
| Martin | 9/10 | 5975 days | 25% |
| Thomas Willi | 8/10 | 5975 days | 24% |
| Jess Pasos | 9/10 | 5984 days | 25% |
| stettim | 10/10 | 6026 days | 25% |
| Philipp | 9/10 | 6026 days | 25% |
| Holly Mrowiec | 10/10 | 6056 days | 25% |
| Sophie Keate | 10/10 | 6093 days | 25% |
| Sam Lightfoot | 10/10 | 6093 days | 25% |
| Jenny Lee | 7/10 | 6115 days | 22% |
| Cat Payne | 9/10 | 6122 days | 25% |
| Catherine Smiles | 10/10 | 6123 days | 25% |
| Nikki Turner | 9/10 | 6130 days | 25% |
| TaraD | 10/10 | 6207 days | 25% |
| BiancaA | 9/10 | 6207 days | 25% |
| hibbler | 10/10 | 6209 days | 25% |
| ferdinande | 7/10 | 6210 days | 22% |
| mariea | 8/10 | 6220 days | 24% |
| JennekeK | 6/10 | 6221 days | 19% |
| Ross | 5/10 | 6223 days | 15% |
| MarielR | 7/10 | 6227 days | 22% |
| NikW | 8/10 | 6227 days | 24% |
| Anna Skeer | 9/10 | 6250 days | 25% |
| EmmaB1 | 8/10 | 6255 days | 24% |
| BethanD | 9/10 | 6256 days | 25% |
| renanf | 8/10 | 6260 days | 24% |
| Laura Muser | 9/10 | 6267 days | 25% |
| Alan Gallagher | 7/10 | 6268 days | 22% |
| Ellen Perrin | 9/10 | 6268 days | 25% |
| Julia | 7/10 | 6271 days | 22% |
| Philipp | 10/10 | 6273 days | 25% |
| Marieke | 3/10 | 6275 days | 6% |
| Katie | 10/10 | 6277 days | 25% |
| Ann-Kathren | 7/10 | 6281 days | 22% |
| Sonja | 8/10 | 6313 days | 24% |
| Claudia Schmidt | 9/10 | 6325 days | 25% |
| sylvia | 8/10 | 6330 days | 24% |
| Amy Newton | 10/10 | 6333 days | 25% |
| debsnz | 10/10 | 6346 days | 25% |
| Nicole | 3/10 | 6355 days | 6% |
| Spike | 7/10 | 6415 days | 22% |
| Sam Prior | 8/10 | 6424 days | 24% |
| Marco | 7/10 | 6448 days | 22% |
| Meike Biel | 8/10 | 6559 days | 24% |
| Helen | 8/10 | 6559 days | 24% |
| Mark | 7/10 | 6579 days | 22% |
| Julie | 5/10 | 6589 days | 15% |
| Marlo | 7/10 | 6596 days | 22% |
| Simon Mills | 8/10 | 6606 days | 24% |
| Sayaka | 4/10 | 6621 days | 10% |
| Camille | 10/10 | 6622 days | 25% |
| Anders | 9/10 | 6622 days | 25% |
| Laura | 8/10 | 6645 days | 24% |
| Ian | 7/10 | 6649 days | 22% |
| Carole Roccia | 6/10 | 6650 days | 19% |
| Thierry Berdah | 8/10 | 6652 days | 24% |
| Helena | 8/10 | 6652 days | 24% |
| Peter Katafey | 6/10 | 6652 days | 19% |
| Lindsey Woosnam | 5/10 | 6652 days | 15% |
| Katherine | 7/10 | 6655 days | 22% |
| Fred | 6/10 | 6656 days | 19% |
| Rob | 5/10 | 6656 days | 15% |
| Gav | 10/10 | 6656 days | 25% |
| Tom Anson | 8/10 | 6657 days | 24% |
| Paul Cowie | 10/10 | 6684 days | 25% |
| Jim | 8/10 | 6693 days | 24% |
| Willemien | 7/10 | 6701 days | 22% |
| Helen | 8/10 | 6927 days | 24% |
| David | 5/10 | 6930 days | 15% |
| Stefan | 7/10 | 6930 days | 22% |
| Gwen | 8/10 | 6933 days | 24% |
| Hanneke | 8/10 | 6937 days | 24% |
| Matt | 7/10 | 6937 days | 22% |
| Alex | 8/10 | 6937 days | 24% |
| Johnny | 8/10 | 6937 days | 24% |
| Aaron | 9/10 | 6937 days | 25% |
| Hilary | 10/10 | 6946 days | 25% |
| Nina | 8/10 | 6981 days | 24% |
| Italy | 9/10 | 6981 days | 25% |
| Helle | 7/10 | 6981 days | 22% |
| KikiNelissen | 7/10 | 6987 days | 22% |
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
-3.74% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 60 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 | -3.68% |
| 198 | -3.70% |
| 199 | -3.72% |
| 200 | -3.74% |
| 201 | -3.76% |
| 202 | -3.77% |
| 203 | -3.79% |
| … | … |
Balancing Adjustment
2.85% 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
83%
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.