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
84.21%
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 | 2779 days | 100% |
| Tom C | 10/10 | 3569 days | 53% |
| Jodie | 10/10 | 3569 days | 53% |
| Paul | 10/10 | 3569 days | 53% |
| Christin Ossege | 10/10 | 3691 days | 43% |
| Theodore Trozinski | 9/10 | 3751 days | 37% |
| Phil Hartmann | 10/10 | 3904 days | 25% |
| dana forrest | 10/10 | 3996 days | 18% |
| Abbi Smith | 10/10 | 4057 days | 13% |
| Nicko Wong | 10/10 | 4088 days | 10% |
| Jodine | 10/10 | 4116 days | 8% |
| Samuel Berwick | 10/10 | 4116 days | 8% |
| Amy Jellings | 10/10 | 4208 days | 0% |
| Anna Elden | 9/10 | 4208 days | 0% |
| Andrea Leichtl | 10/10 | 4423 days | 28% |
| Johanna Molenaar | 7/10 | 4423 days | 25% |
| Claudia Bauch | 3/10 | 4452 days | 9% |
| Charlotte Wilson | 10/10 | 4453 days | 28% |
| Chris Luebbi | 8/10 | 4454 days | 27% |
| jason beinstein | 9/10 | 4481 days | 28% |
| discoveringaway | 9/10 | 4482 days | 28% |
| ieva m | 8/10 | 4513 days | 27% |
| Sonia | 10/10 | 4513 days | 28% |
| Zsolt | 10/10 | 4513 days | 28% |
| Victoria Wander | 10/10 | 4513 days | 28% |
| TtotheT13 | 9/10 | 4544 days | 28% |
| Kim O'Neill | 10/10 | 4574 days | 28% |
| Maia Kazaks | 8/10 | 4574 days | 27% |
| Colette Keely | 10/10 | 4605 days | 28% |
| Jen Hards | 10/10 | 4635 days | 28% |
| Thomas Jones | 10/10 | 4666 days | 28% |
| Raj Singh | 10/10 | 4666 days | 28% |
| Sohie | 9/10 | 4824 days | 28% |
| Robin Andersson | 9/10 | 4847 days | 28% |
| Megan Gallagher | 10/10 | 4878 days | 28% |
| Andy Brown | 10/10 | 4878 days | 28% |
| Vinnie K | 10/10 | 4939 days | 28% |
| Heather_Oz | 9/10 | 5000 days | 28% |
| luciasolda | 10/10 | 5062 days | 28% |
| jennyj | 10/10 | 5092 days | 28% |
| dwehrtmann | 9/10 | 5123 days | 28% |
| Evaislief | 10/10 | 5153 days | 28% |
| Malena | 10/10 | 5184 days | 28% |
| navilink | 10/10 | 5184 days | 28% |
| meganb04 | 10/10 | 5184 days | 28% |
| MaryG | 10/10 | 5184 days | 28% |
| JoPycroft | 10/10 | 5184 days | 28% |
| lovebyname | 9/10 | 5184 days | 28% |
| Sonia Sennane | 7/10 | 5185 days | 25% |
| Tamara McVey | 7/10 | 5196 days | 25% |
| Rachel | 7/10 | 5198 days | 25% |
| Danielle & Jobbe | 8/10 | 5198 days | 27% |
| Andy Bridgman | 8/10 | 5198 days | 27% |
| Fiona Finke | 6/10 | 5204 days | 22% |
| Miron & Hendrik | 8/10 | 5208 days | 27% |
| marielou | 10/10 | 5213 days | 28% |
| iainmcgin | 10/10 | 5213 days | 28% |
| redkeels | 10/10 | 5213 days | 28% |
| lulu | 6/10 | 5244 days | 22% |
| Boogie | 5/10 | 5275 days | 18% |
| isha | 9/10 | 5275 days | 28% |
| pepper | 9/10 | 5305 days | 28% |
| Kez | 10/10 | 5336 days | 28% |
| Brilly01 | 8/10 | 5336 days | 27% |
| yens123 | 9/10 | 5336 days | 28% |
| louiset | 9/10 | 5336 days | 28% |
| siek09 | 9/10 | 5366 days | 28% |
| rosey | 10/10 | 5397 days | 28% |
| Cadz | 10/10 | 5397 days | 28% |
| natalietrueman84 | 10/10 | 5428 days | 28% |
| Josie | 10/10 | 5428 days | 28% |
| Scott_and_Stephanie | 9/10 | 5519 days | 28% |
| Samantha | 10/10 | 5519 days | 28% |
| Tracey Airiscough | 9/10 | 5541 days | 28% |
| Vanessa Hanzen | 4/10 | 5542 days | 14% |
| Lauren McKeone | 7/10 | 5548 days | 25% |
| Faye Cox | 7/10 | 5548 days | 25% |
| pudddddin | 9/10 | 5550 days | 28% |
| alicevarren | 9/10 | 5550 days | 28% |
| irisheyes | 7/10 | 5550 days | 25% |
| Steff | 7/10 | 5570 days | 25% |
| Forestal Youri | 7/10 | 5570 days | 25% |
| Amanda Craig | 8/10 | 5572 days | 27% |
| Olle Beide | 8/10 | 5578 days | 27% |
| JonathanMills | 8/10 | 5578 days | 27% |
| lisa | 9/10 | 5609 days | 28% |
| phydough | 6/10 | 5640 days | 22% |
| zippy | 10/10 | 5731 days | 28% |
| TerriH | 10/10 | 5762 days | 28% |
| ciara | 10/10 | 5793 days | 28% |
| mel1407 | 10/10 | 5793 days | 28% |
| Claram | 9/10 | 5823 days | 28% |
| joycevanb | 7/10 | 5854 days | 25% |
| JohnG | 10/10 | 5854 days | 28% |
| nicolejr413 | 9/10 | 5884 days | 28% |
| Antoine Migault | 8/10 | 5905 days | 27% |
| Christine T | 7/10 | 5909 days | 25% |
| Kay Beaumont | 8/10 | 5917 days | 27% |
| Johan | 7/10 | 5917 days | 25% |
| S Millet | 9/10 | 5921 days | 28% |
| Jens van Evp | 9/10 | 5939 days | 28% |
| Max Van der Zalm | 9/10 | 5939 days | 28% |
| Emily Walters | 7/10 | 5941 days | 25% |
| Brett Oz | 9/10 | 5974 days | 28% |
| greenbex | 9/10 | 5974 days | 28% |
| simonbo | 3/10 | 5989 days | 9% |
| katesc | 9/10 | 5994 days | 28% |
| martint | 6/10 | 5998 days | 22% |
| richelle | 7/10 | 5998 days | 25% |
| rosalindm | 8/10 | 5999 days | 27% |
| katepat | 8/10 | 6005 days | 27% |
| Beau | 5/10 | 6005 days | 18% |
| Debbie Rathbone | 10/10 | 6012 days | 28% |
| Ricarda | 3/10 | 6015 days | 9% |
| Malinka Nuefeld | 4/10 | 6015 days | 14% |
| Martin | 9/10 | 6015 days | 28% |
| Thomas Willi | 8/10 | 6015 days | 27% |
| Jess Pasos | 9/10 | 6024 days | 28% |
| stettim | 10/10 | 6066 days | 28% |
| Philipp | 9/10 | 6066 days | 28% |
| Holly Mrowiec | 10/10 | 6096 days | 28% |
| Sophie Keate | 10/10 | 6133 days | 28% |
| Sam Lightfoot | 10/10 | 6133 days | 28% |
| Jenny Lee | 7/10 | 6155 days | 25% |
| Cat Payne | 9/10 | 6162 days | 28% |
| Catherine Smiles | 10/10 | 6163 days | 28% |
| Nikki Turner | 9/10 | 6170 days | 28% |
| TaraD | 10/10 | 6247 days | 28% |
| BiancaA | 9/10 | 6247 days | 28% |
| hibbler | 10/10 | 6249 days | 28% |
| ferdinande | 7/10 | 6250 days | 25% |
| mariea | 8/10 | 6260 days | 27% |
| JennekeK | 6/10 | 6261 days | 22% |
| Ross | 5/10 | 6263 days | 18% |
| MarielR | 7/10 | 6267 days | 25% |
| NikW | 8/10 | 6267 days | 27% |
| Anna Skeer | 9/10 | 6290 days | 28% |
| EmmaB1 | 8/10 | 6295 days | 27% |
| BethanD | 9/10 | 6296 days | 28% |
| renanf | 8/10 | 6300 days | 27% |
| Laura Muser | 9/10 | 6307 days | 28% |
| Alan Gallagher | 7/10 | 6308 days | 25% |
| Ellen Perrin | 9/10 | 6308 days | 28% |
| Julia | 7/10 | 6311 days | 25% |
| Philipp | 10/10 | 6313 days | 28% |
| Marieke | 3/10 | 6315 days | 9% |
| Katie | 10/10 | 6317 days | 28% |
| Ann-Kathren | 7/10 | 6321 days | 25% |
| Sonja | 8/10 | 6353 days | 27% |
| Claudia Schmidt | 9/10 | 6365 days | 28% |
| sylvia | 8/10 | 6370 days | 27% |
| Amy Newton | 10/10 | 6373 days | 28% |
| debsnz | 10/10 | 6386 days | 28% |
| Nicole | 3/10 | 6395 days | 9% |
| Spike | 7/10 | 6455 days | 25% |
| Sam Prior | 8/10 | 6464 days | 27% |
| Marco | 7/10 | 6488 days | 25% |
| Meike Biel | 8/10 | 6599 days | 27% |
| Helen | 8/10 | 6599 days | 27% |
| Mark | 7/10 | 6619 days | 25% |
| Julie | 5/10 | 6629 days | 18% |
| Marlo | 7/10 | 6636 days | 25% |
| Simon Mills | 8/10 | 6646 days | 27% |
| Sayaka | 4/10 | 6661 days | 14% |
| Camille | 10/10 | 6662 days | 28% |
| Anders | 9/10 | 6662 days | 28% |
| Laura | 8/10 | 6685 days | 27% |
| Ian | 7/10 | 6689 days | 25% |
| Carole Roccia | 6/10 | 6690 days | 22% |
| Thierry Berdah | 8/10 | 6692 days | 27% |
| Helena | 8/10 | 6692 days | 27% |
| Peter Katafey | 6/10 | 6692 days | 22% |
| Lindsey Woosnam | 5/10 | 6692 days | 18% |
| Katherine | 7/10 | 6695 days | 25% |
| Fred | 6/10 | 6696 days | 22% |
| Rob | 5/10 | 6696 days | 18% |
| Gav | 10/10 | 6696 days | 28% |
| Tom Anson | 8/10 | 6697 days | 27% |
| Paul Cowie | 10/10 | 6724 days | 28% |
| Jim | 8/10 | 6733 days | 27% |
| Willemien | 7/10 | 6741 days | 25% |
| Helen | 8/10 | 6967 days | 27% |
| David | 5/10 | 6970 days | 18% |
| Stefan | 7/10 | 6970 days | 25% |
| Gwen | 8/10 | 6973 days | 27% |
| Hanneke | 8/10 | 6977 days | 27% |
| Matt | 7/10 | 6977 days | 25% |
| Alex | 8/10 | 6977 days | 27% |
| Johnny | 8/10 | 6977 days | 27% |
| Aaron | 9/10 | 6977 days | 28% |
| Hilary | 10/10 | 6986 days | 28% |
| Nina | 8/10 | 7021 days | 27% |
| Italy | 9/10 | 7021 days | 28% |
| Helle | 7/10 | 7021 days | 25% |
| KikiNelissen | 7/10 | 7027 days | 25% |
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
-2.89% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 87 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 | -2.85% |
| 198 | -2.86% |
| 199 | -2.88% |
| 200 | -2.89% |
| 201 | -2.90% |
| 202 | -2.92% |
| 203 | -2.93% |
| … | … |
Balancing Adjustment
2.66% 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.