Hey, 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
84.01%
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 | 2959 days | 100% |
| Tom C | 10/10 | 3750 days | 48% |
| Jodie | 10/10 | 3750 days | 48% |
| Paul | 10/10 | 3750 days | 48% |
| Christin Ossege | 10/10 | 3872 days | 37% |
| Theodore Trozinski | 9/10 | 3932 days | 32% |
| Phil Hartmann | 10/10 | 4085 days | 19% |
| dana forrest | 10/10 | 4177 days | 11% |
| Abbi Smith | 10/10 | 4238 days | 5% |
| Nicko Wong | 10/10 | 4269 days | 2% |
| Jodine | 10/10 | 4297 days | 0% |
| Samuel Berwick | 10/10 | 4297 days | 0% |
| Amy Jellings | 10/10 | 4389 days | 38% |
| Anna Elden | 9/10 | 4389 days | 37% |
| Andrea Leichtl | 10/10 | 4603 days | 38% |
| Johanna Molenaar | 7/10 | 4603 days | 34% |
| Claudia Bauch | 3/10 | 4632 days | 17% |
| Charlotte Wilson | 10/10 | 4634 days | 38% |
| Chris Luebbi | 8/10 | 4634 days | 37% |
| jason beinstein | 9/10 | 4662 days | 37% |
| discoveringaway | 9/10 | 4662 days | 37% |
| ieva m | 8/10 | 4693 days | 37% |
| Sonia | 10/10 | 4693 days | 38% |
| Zsolt | 10/10 | 4693 days | 38% |
| Victoria Wander | 10/10 | 4693 days | 38% |
| TtotheT13 | 9/10 | 4724 days | 37% |
| Kim O'Neill | 10/10 | 4754 days | 38% |
| Maia Kazaks | 8/10 | 4754 days | 37% |
| Colette Keely | 10/10 | 4785 days | 38% |
| Jen Hards | 10/10 | 4815 days | 38% |
| Thomas Jones | 10/10 | 4846 days | 38% |
| Raj Singh | 10/10 | 4846 days | 38% |
| Sohie | 9/10 | 5004 days | 37% |
| Robin Andersson | 9/10 | 5027 days | 37% |
| Megan Gallagher | 10/10 | 5058 days | 38% |
| Andy Brown | 10/10 | 5058 days | 38% |
| Vinnie K | 10/10 | 5119 days | 38% |
| Heather_Oz | 9/10 | 5180 days | 37% |
| luciasolda | 10/10 | 5242 days | 38% |
| jennyj | 10/10 | 5272 days | 38% |
| dwehrtmann | 9/10 | 5303 days | 37% |
| Evaislief | 10/10 | 5333 days | 38% |
| Malena | 10/10 | 5364 days | 38% |
| navilink | 10/10 | 5364 days | 38% |
| meganb04 | 10/10 | 5364 days | 38% |
| MaryG | 10/10 | 5364 days | 38% |
| JoPycroft | 10/10 | 5364 days | 38% |
| lovebyname | 9/10 | 5364 days | 37% |
| Sonia Sennane | 7/10 | 5365 days | 34% |
| Tamara McVey | 7/10 | 5376 days | 34% |
| Rachel | 7/10 | 5378 days | 34% |
| Danielle & Jobbe | 8/10 | 5378 days | 37% |
| Andy Bridgman | 8/10 | 5378 days | 37% |
| Fiona Finke | 6/10 | 5384 days | 31% |
| Miron & Hendrik | 8/10 | 5388 days | 37% |
| marielou | 10/10 | 5393 days | 38% |
| iainmcgin | 10/10 | 5393 days | 38% |
| redkeels | 10/10 | 5393 days | 38% |
| lulu | 6/10 | 5424 days | 31% |
| Boogie | 5/10 | 5455 days | 27% |
| isha | 9/10 | 5455 days | 37% |
| pepper | 9/10 | 5485 days | 37% |
| Kez | 10/10 | 5516 days | 38% |
| Brilly01 | 8/10 | 5516 days | 37% |
| yens123 | 9/10 | 5516 days | 37% |
| louiset | 9/10 | 5516 days | 37% |
| siek09 | 9/10 | 5546 days | 37% |
| rosey | 10/10 | 5577 days | 38% |
| Cadz | 10/10 | 5577 days | 38% |
| natalietrueman84 | 10/10 | 5608 days | 38% |
| Josie | 10/10 | 5608 days | 38% |
| Scott_and_Stephanie | 9/10 | 5699 days | 37% |
| Samantha | 10/10 | 5699 days | 38% |
| Tracey Airiscough | 9/10 | 5721 days | 37% |
| Vanessa Hanzen | 4/10 | 5722 days | 22% |
| Lauren McKeone | 7/10 | 5728 days | 34% |
| Faye Cox | 7/10 | 5728 days | 34% |
| pudddddin | 9/10 | 5730 days | 37% |
| alicevarren | 9/10 | 5730 days | 37% |
| irisheyes | 7/10 | 5730 days | 34% |
| Steff | 7/10 | 5750 days | 34% |
| Forestal Youri | 7/10 | 5750 days | 34% |
| Amanda Craig | 8/10 | 5752 days | 37% |
| Olle Beide | 8/10 | 5758 days | 37% |
| JonathanMills | 8/10 | 5758 days | 37% |
| lisa | 9/10 | 5789 days | 37% |
| phydough | 6/10 | 5820 days | 31% |
| zippy | 10/10 | 5911 days | 38% |
| TerriH | 10/10 | 5942 days | 38% |
| ciara | 10/10 | 5973 days | 38% |
| mel1407 | 10/10 | 5973 days | 38% |
| Claram | 9/10 | 6003 days | 37% |
| joycevanb | 7/10 | 6034 days | 34% |
| JohnG | 10/10 | 6034 days | 38% |
| nicolejr413 | 9/10 | 6064 days | 37% |
| Antoine Migault | 8/10 | 6085 days | 37% |
| Christine T | 7/10 | 6089 days | 34% |
| Kay Beaumont | 8/10 | 6097 days | 37% |
| Johan | 7/10 | 6097 days | 34% |
| S Millet | 9/10 | 6101 days | 37% |
| Jens van Evp | 9/10 | 6119 days | 37% |
| Max Van der Zalm | 9/10 | 6119 days | 37% |
| Emily Walters | 7/10 | 6121 days | 34% |
| Brett Oz | 9/10 | 6154 days | 37% |
| greenbex | 9/10 | 6154 days | 37% |
| simonbo | 3/10 | 6169 days | 17% |
| katesc | 9/10 | 6174 days | 37% |
| martint | 6/10 | 6178 days | 31% |
| richelle | 7/10 | 6178 days | 34% |
| rosalindm | 8/10 | 6179 days | 37% |
| katepat | 8/10 | 6185 days | 37% |
| Beau | 5/10 | 6185 days | 27% |
| Debbie Rathbone | 10/10 | 6192 days | 38% |
| Ricarda | 3/10 | 6195 days | 17% |
| Malinka Nuefeld | 4/10 | 6195 days | 22% |
| Martin | 9/10 | 6195 days | 37% |
| Thomas Willi | 8/10 | 6195 days | 37% |
| Jess Pasos | 9/10 | 6204 days | 37% |
| stettim | 10/10 | 6246 days | 38% |
| Philipp | 9/10 | 6246 days | 37% |
| Holly Mrowiec | 10/10 | 6276 days | 38% |
| Sophie Keate | 10/10 | 6313 days | 38% |
| Sam Lightfoot | 10/10 | 6313 days | 38% |
| Jenny Lee | 7/10 | 6335 days | 34% |
| Cat Payne | 9/10 | 6342 days | 37% |
| Catherine Smiles | 10/10 | 6343 days | 38% |
| Nikki Turner | 9/10 | 6350 days | 37% |
| TaraD | 10/10 | 6427 days | 38% |
| BiancaA | 9/10 | 6427 days | 37% |
| hibbler | 10/10 | 6429 days | 38% |
| ferdinande | 7/10 | 6431 days | 34% |
| mariea | 8/10 | 6441 days | 37% |
| JennekeK | 6/10 | 6441 days | 31% |
| Ross | 5/10 | 6443 days | 27% |
| MarielR | 7/10 | 6447 days | 34% |
| NikW | 8/10 | 6447 days | 37% |
| Anna Skeer | 9/10 | 6470 days | 37% |
| EmmaB1 | 8/10 | 6475 days | 37% |
| BethanD | 9/10 | 6476 days | 37% |
| renanf | 8/10 | 6480 days | 37% |
| Laura Muser | 9/10 | 6488 days | 37% |
| Alan Gallagher | 7/10 | 6488 days | 34% |
| Ellen Perrin | 9/10 | 6488 days | 37% |
| Julia | 7/10 | 6491 days | 34% |
| Philipp | 10/10 | 6494 days | 38% |
| Marieke | 3/10 | 6495 days | 17% |
| Katie | 10/10 | 6498 days | 38% |
| Ann-Kathren | 7/10 | 6502 days | 34% |
| Sonja | 8/10 | 6534 days | 37% |
| Claudia Schmidt | 9/10 | 6546 days | 37% |
| sylvia | 8/10 | 6551 days | 37% |
| Amy Newton | 10/10 | 6554 days | 38% |
| debsnz | 10/10 | 6567 days | 38% |
| Nicole | 3/10 | 6576 days | 17% |
| Spike | 7/10 | 6636 days | 34% |
| Sam Prior | 8/10 | 6645 days | 37% |
| Marco | 7/10 | 6669 days | 34% |
| Meike Biel | 8/10 | 6779 days | 37% |
| Helen | 8/10 | 6779 days | 37% |
| Mark | 7/10 | 6799 days | 34% |
| Julie | 5/10 | 6809 days | 27% |
| Marlo | 7/10 | 6816 days | 34% |
| Simon Mills | 8/10 | 6826 days | 37% |
| Sayaka | 4/10 | 6841 days | 22% |
| Camille | 10/10 | 6842 days | 38% |
| Anders | 9/10 | 6842 days | 37% |
| Laura | 8/10 | 6865 days | 37% |
| Ian | 7/10 | 6869 days | 34% |
| Carole Roccia | 6/10 | 6870 days | 31% |
| Thierry Berdah | 8/10 | 6872 days | 37% |
| Helena | 8/10 | 6872 days | 37% |
| Peter Katafey | 6/10 | 6872 days | 31% |
| Lindsey Woosnam | 5/10 | 6872 days | 27% |
| Katherine | 7/10 | 6875 days | 34% |
| Fred | 6/10 | 6876 days | 31% |
| Rob | 5/10 | 6876 days | 27% |
| Gav | 10/10 | 6876 days | 38% |
| Tom Anson | 8/10 | 6877 days | 37% |
| Paul Cowie | 10/10 | 6904 days | 38% |
| Jim | 8/10 | 6913 days | 37% |
| Willemien | 7/10 | 6921 days | 34% |
| Helen | 8/10 | 7147 days | 37% |
| David | 5/10 | 7150 days | 27% |
| Stefan | 7/10 | 7150 days | 34% |
| Gwen | 8/10 | 7153 days | 37% |
| Hanneke | 8/10 | 7157 days | 37% |
| Matt | 7/10 | 7157 days | 34% |
| Alex | 8/10 | 7157 days | 37% |
| Johnny | 8/10 | 7157 days | 37% |
| Aaron | 9/10 | 7157 days | 37% |
| Hilary | 10/10 | 7166 days | 38% |
| Nina | 8/10 | 7201 days | 37% |
| Italy | 9/10 | 7201 days | 37% |
| Helle | 7/10 | 7201 days | 34% |
| KikiNelissen | 7/10 | 7207 days | 34% |
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
-3.93% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 47 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 | -3.87% |
| 198 | -3.89% |
| 199 | -3.91% |
| 200 | -3.93% |
| 201 | -3.95% |
| 202 | -3.97% |
| 203 | -3.99% |
| … | … |
Balancing Adjustment
2.98% 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.