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
84.44%
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 | 2692 days | 100% |
| Tom C | 10/10 | 3483 days | 61% |
| Jodie | 10/10 | 3483 days | 61% |
| Paul | 10/10 | 3483 days | 61% |
| Christin Ossege | 10/10 | 3605 days | 53% |
| Theodore Trozinski | 9/10 | 3665 days | 48% |
| Phil Hartmann | 10/10 | 3818 days | 38% |
| dana forrest | 10/10 | 3910 days | 32% |
| Abbi Smith | 10/10 | 3971 days | 28% |
| Nicko Wong | 10/10 | 4002 days | 26% |
| Jodine | 10/10 | 4030 days | 24% |
| Samuel Berwick | 10/10 | 4030 days | 24% |
| Amy Jellings | 10/10 | 4122 days | 17% |
| Anna Elden | 9/10 | 4122 days | 17% |
| Andrea Leichtl | 10/10 | 4336 days | 2% |
| Johanna Molenaar | 7/10 | 4336 days | 2% |
| Claudia Bauch | 3/10 | 4365 days | 0% |
| Charlotte Wilson | 10/10 | 4367 days | 0% |
| Chris Luebbi | 8/10 | 4367 days | 0% |
| jason beinstein | 9/10 | 4395 days | 34% |
| discoveringaway | 9/10 | 4395 days | 34% |
| ieva m | 8/10 | 4426 days | 34% |
| Sonia | 10/10 | 4426 days | 35% |
| Zsolt | 10/10 | 4426 days | 35% |
| Victoria Wander | 10/10 | 4426 days | 35% |
| TtotheT13 | 9/10 | 4457 days | 34% |
| Kim O'Neill | 10/10 | 4487 days | 35% |
| Maia Kazaks | 8/10 | 4487 days | 34% |
| Colette Keely | 10/10 | 4518 days | 35% |
| Jen Hards | 10/10 | 4548 days | 35% |
| Thomas Jones | 10/10 | 4579 days | 35% |
| Raj Singh | 10/10 | 4579 days | 35% |
| Sohie | 9/10 | 4737 days | 34% |
| Robin Andersson | 9/10 | 4760 days | 34% |
| Megan Gallagher | 10/10 | 4791 days | 35% |
| Andy Brown | 10/10 | 4791 days | 35% |
| Vinnie K | 10/10 | 4852 days | 35% |
| Heather_Oz | 9/10 | 4913 days | 34% |
| luciasolda | 10/10 | 4975 days | 35% |
| jennyj | 10/10 | 5005 days | 35% |
| dwehrtmann | 9/10 | 5036 days | 34% |
| Evaislief | 10/10 | 5066 days | 35% |
| Malena | 10/10 | 5097 days | 35% |
| navilink | 10/10 | 5097 days | 35% |
| meganb04 | 10/10 | 5097 days | 35% |
| MaryG | 10/10 | 5097 days | 35% |
| JoPycroft | 10/10 | 5097 days | 35% |
| lovebyname | 9/10 | 5097 days | 34% |
| Sonia Sennane | 7/10 | 5098 days | 32% |
| Tamara McVey | 7/10 | 5109 days | 32% |
| Rachel | 7/10 | 5111 days | 32% |
| Danielle & Jobbe | 8/10 | 5111 days | 34% |
| Andy Bridgman | 8/10 | 5111 days | 34% |
| Fiona Finke | 6/10 | 5117 days | 30% |
| Miron & Hendrik | 8/10 | 5121 days | 34% |
| marielou | 10/10 | 5126 days | 35% |
| iainmcgin | 10/10 | 5126 days | 35% |
| redkeels | 10/10 | 5126 days | 35% |
| lulu | 6/10 | 5157 days | 30% |
| Boogie | 5/10 | 5188 days | 26% |
| isha | 9/10 | 5188 days | 34% |
| pepper | 9/10 | 5218 days | 34% |
| Kez | 10/10 | 5249 days | 35% |
| Brilly01 | 8/10 | 5249 days | 34% |
| yens123 | 9/10 | 5249 days | 34% |
| louiset | 9/10 | 5249 days | 34% |
| siek09 | 9/10 | 5279 days | 34% |
| rosey | 10/10 | 5310 days | 35% |
| Cadz | 10/10 | 5310 days | 35% |
| natalietrueman84 | 10/10 | 5341 days | 35% |
| Josie | 10/10 | 5341 days | 35% |
| Scott_and_Stephanie | 9/10 | 5432 days | 34% |
| Samantha | 10/10 | 5432 days | 35% |
| Tracey Airiscough | 9/10 | 5454 days | 34% |
| Vanessa Hanzen | 4/10 | 5455 days | 23% |
| Lauren McKeone | 7/10 | 5461 days | 32% |
| Faye Cox | 7/10 | 5461 days | 32% |
| pudddddin | 9/10 | 5463 days | 34% |
| alicevarren | 9/10 | 5463 days | 34% |
| irisheyes | 7/10 | 5463 days | 32% |
| Steff | 7/10 | 5483 days | 32% |
| Forestal Youri | 7/10 | 5483 days | 32% |
| Amanda Craig | 8/10 | 5485 days | 34% |
| Olle Beide | 8/10 | 5491 days | 34% |
| JonathanMills | 8/10 | 5491 days | 34% |
| lisa | 9/10 | 5522 days | 34% |
| phydough | 6/10 | 5553 days | 30% |
| zippy | 10/10 | 5644 days | 35% |
| TerriH | 10/10 | 5675 days | 35% |
| ciara | 10/10 | 5706 days | 35% |
| mel1407 | 10/10 | 5706 days | 35% |
| Claram | 9/10 | 5736 days | 34% |
| joycevanb | 7/10 | 5767 days | 32% |
| JohnG | 10/10 | 5767 days | 35% |
| nicolejr413 | 9/10 | 5797 days | 34% |
| Antoine Migault | 8/10 | 5818 days | 34% |
| Christine T | 7/10 | 5822 days | 32% |
| Kay Beaumont | 8/10 | 5830 days | 34% |
| Johan | 7/10 | 5830 days | 32% |
| S Millet | 9/10 | 5834 days | 34% |
| Jens van Evp | 9/10 | 5852 days | 34% |
| Max Van der Zalm | 9/10 | 5852 days | 34% |
| Emily Walters | 7/10 | 5854 days | 32% |
| Brett Oz | 9/10 | 5887 days | 34% |
| greenbex | 9/10 | 5887 days | 34% |
| simonbo | 3/10 | 5902 days | 19% |
| katesc | 9/10 | 5907 days | 34% |
| martint | 6/10 | 5911 days | 30% |
| richelle | 7/10 | 5911 days | 32% |
| rosalindm | 8/10 | 5912 days | 34% |
| katepat | 8/10 | 5918 days | 34% |
| Beau | 5/10 | 5918 days | 26% |
| Debbie Rathbone | 10/10 | 5925 days | 35% |
| Ricarda | 3/10 | 5928 days | 19% |
| Malinka Nuefeld | 4/10 | 5928 days | 23% |
| Martin | 9/10 | 5928 days | 34% |
| Thomas Willi | 8/10 | 5928 days | 34% |
| Jess Pasos | 9/10 | 5937 days | 34% |
| stettim | 10/10 | 5979 days | 35% |
| Philipp | 9/10 | 5979 days | 34% |
| Holly Mrowiec | 10/10 | 6009 days | 35% |
| Sophie Keate | 10/10 | 6046 days | 35% |
| Sam Lightfoot | 10/10 | 6046 days | 35% |
| Jenny Lee | 7/10 | 6068 days | 32% |
| Cat Payne | 9/10 | 6075 days | 34% |
| Catherine Smiles | 10/10 | 6076 days | 35% |
| Nikki Turner | 9/10 | 6083 days | 34% |
| TaraD | 10/10 | 6160 days | 35% |
| BiancaA | 9/10 | 6160 days | 34% |
| hibbler | 10/10 | 6162 days | 35% |
| ferdinande | 7/10 | 6164 days | 32% |
| mariea | 8/10 | 6174 days | 34% |
| JennekeK | 6/10 | 6174 days | 30% |
| Ross | 5/10 | 6176 days | 26% |
| MarielR | 7/10 | 6180 days | 32% |
| NikW | 8/10 | 6180 days | 34% |
| Anna Skeer | 9/10 | 6203 days | 34% |
| EmmaB1 | 8/10 | 6208 days | 34% |
| BethanD | 9/10 | 6209 days | 34% |
| renanf | 8/10 | 6213 days | 34% |
| Laura Muser | 9/10 | 6221 days | 34% |
| Alan Gallagher | 7/10 | 6221 days | 32% |
| Ellen Perrin | 9/10 | 6221 days | 34% |
| Julia | 7/10 | 6224 days | 32% |
| Philipp | 10/10 | 6227 days | 35% |
| Marieke | 3/10 | 6228 days | 19% |
| Katie | 10/10 | 6231 days | 35% |
| Ann-Kathren | 7/10 | 6235 days | 32% |
| Sonja | 8/10 | 6267 days | 34% |
| Claudia Schmidt | 9/10 | 6279 days | 34% |
| sylvia | 8/10 | 6284 days | 34% |
| Amy Newton | 10/10 | 6287 days | 35% |
| debsnz | 10/10 | 6300 days | 35% |
| Nicole | 3/10 | 6309 days | 19% |
| Spike | 7/10 | 6369 days | 32% |
| Sam Prior | 8/10 | 6378 days | 34% |
| Marco | 7/10 | 6402 days | 32% |
| Meike Biel | 8/10 | 6512 days | 34% |
| Helen | 8/10 | 6512 days | 34% |
| Mark | 7/10 | 6532 days | 32% |
| Julie | 5/10 | 6542 days | 26% |
| Marlo | 7/10 | 6549 days | 32% |
| Simon Mills | 8/10 | 6559 days | 34% |
| Sayaka | 4/10 | 6574 days | 23% |
| Camille | 10/10 | 6575 days | 35% |
| Anders | 9/10 | 6575 days | 34% |
| Laura | 8/10 | 6598 days | 34% |
| Ian | 7/10 | 6602 days | 32% |
| Carole Roccia | 6/10 | 6603 days | 30% |
| Thierry Berdah | 8/10 | 6605 days | 34% |
| Helena | 8/10 | 6605 days | 34% |
| Peter Katafey | 6/10 | 6605 days | 30% |
| Lindsey Woosnam | 5/10 | 6605 days | 26% |
| Katherine | 7/10 | 6608 days | 32% |
| Fred | 6/10 | 6609 days | 30% |
| Rob | 5/10 | 6609 days | 26% |
| Gav | 10/10 | 6609 days | 35% |
| Tom Anson | 8/10 | 6610 days | 34% |
| Paul Cowie | 10/10 | 6637 days | 35% |
| Jim | 8/10 | 6646 days | 34% |
| Willemien | 7/10 | 6654 days | 32% |
| Helen | 8/10 | 6880 days | 34% |
| David | 5/10 | 6883 days | 26% |
| Stefan | 7/10 | 6883 days | 32% |
| Gwen | 8/10 | 6886 days | 34% |
| Hanneke | 8/10 | 6890 days | 34% |
| Matt | 7/10 | 6890 days | 32% |
| Alex | 8/10 | 6890 days | 34% |
| Johnny | 8/10 | 6890 days | 34% |
| Aaron | 9/10 | 6890 days | 34% |
| Hilary | 10/10 | 6899 days | 35% |
| Nina | 8/10 | 6934 days | 34% |
| Italy | 9/10 | 6934 days | 34% |
| Helle | 7/10 | 6934 days | 32% |
| KikiNelissen | 7/10 | 6940 days | 32% |
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
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 52 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 | -4.09% |
| 198 | -4.11% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.18% |
| 202 | -4.20% |
| 203 | -4.22% |
| … | … |
Balancing Adjustment
2.92% 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.