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
84.27%
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 | 2625 days | 100% |
| Tom C | 10/10 | 3415 days | 63% |
| Jodie | 10/10 | 3415 days | 63% |
| Paul | 10/10 | 3415 days | 63% |
| Christin Ossege | 10/10 | 3537 days | 55% |
| Theodore Trozinski | 9/10 | 3597 days | 51% |
| Phil Hartmann | 10/10 | 3750 days | 41% |
| dana forrest | 10/10 | 3842 days | 35% |
| Abbi Smith | 10/10 | 3903 days | 31% |
| Nicko Wong | 10/10 | 3934 days | 29% |
| Jodine | 10/10 | 3962 days | 27% |
| Samuel Berwick | 10/10 | 3962 days | 27% |
| Amy Jellings | 10/10 | 4054 days | 20% |
| Anna Elden | 9/10 | 4054 days | 20% |
| Andrea Leichtl | 10/10 | 4269 days | 6% |
| Johanna Molenaar | 7/10 | 4269 days | 6% |
| Claudia Bauch | 3/10 | 4298 days | 2% |
| Charlotte Wilson | 10/10 | 4299 days | 4% |
| Chris Luebbi | 8/10 | 4300 days | 4% |
| jason beinstein | 9/10 | 4327 days | 2% |
| discoveringaway | 9/10 | 4328 days | 2% |
| ieva m | 8/10 | 4359 days | 0% |
| Sonia | 10/10 | 4359 days | 0% |
| Zsolt | 10/10 | 4359 days | 0% |
| Victoria Wander | 10/10 | 4359 days | 0% |
| TtotheT13 | 9/10 | 4390 days | 33% |
| Kim O'Neill | 10/10 | 4420 days | 33% |
| Maia Kazaks | 8/10 | 4420 days | 32% |
| Colette Keely | 10/10 | 4451 days | 33% |
| Jen Hards | 10/10 | 4481 days | 33% |
| Thomas Jones | 10/10 | 4512 days | 33% |
| Raj Singh | 10/10 | 4512 days | 33% |
| Sohie | 9/10 | 4670 days | 33% |
| Robin Andersson | 9/10 | 4693 days | 33% |
| Megan Gallagher | 10/10 | 4724 days | 33% |
| Andy Brown | 10/10 | 4724 days | 33% |
| Vinnie K | 10/10 | 4785 days | 33% |
| Heather_Oz | 9/10 | 4846 days | 33% |
| luciasolda | 10/10 | 4908 days | 33% |
| jennyj | 10/10 | 4938 days | 33% |
| dwehrtmann | 9/10 | 4969 days | 33% |
| Evaislief | 10/10 | 4999 days | 33% |
| Malena | 10/10 | 5030 days | 33% |
| navilink | 10/10 | 5030 days | 33% |
| meganb04 | 10/10 | 5030 days | 33% |
| MaryG | 10/10 | 5030 days | 33% |
| JoPycroft | 10/10 | 5030 days | 33% |
| lovebyname | 9/10 | 5030 days | 33% |
| Sonia Sennane | 7/10 | 5031 days | 31% |
| Tamara McVey | 7/10 | 5042 days | 31% |
| Rachel | 7/10 | 5044 days | 31% |
| Danielle & Jobbe | 8/10 | 5044 days | 32% |
| Andy Bridgman | 8/10 | 5044 days | 32% |
| Fiona Finke | 6/10 | 5050 days | 28% |
| Miron & Hendrik | 8/10 | 5054 days | 32% |
| marielou | 10/10 | 5059 days | 33% |
| iainmcgin | 10/10 | 5059 days | 33% |
| redkeels | 10/10 | 5059 days | 33% |
| lulu | 6/10 | 5090 days | 28% |
| Boogie | 5/10 | 5121 days | 25% |
| isha | 9/10 | 5121 days | 33% |
| pepper | 9/10 | 5151 days | 33% |
| Kez | 10/10 | 5182 days | 33% |
| Brilly01 | 8/10 | 5182 days | 32% |
| yens123 | 9/10 | 5182 days | 33% |
| louiset | 9/10 | 5182 days | 33% |
| siek09 | 9/10 | 5212 days | 33% |
| rosey | 10/10 | 5243 days | 33% |
| Cadz | 10/10 | 5243 days | 33% |
| natalietrueman84 | 10/10 | 5274 days | 33% |
| Josie | 10/10 | 5274 days | 33% |
| Scott_and_Stephanie | 9/10 | 5365 days | 33% |
| Samantha | 10/10 | 5365 days | 33% |
| Tracey Airiscough | 9/10 | 5387 days | 33% |
| Vanessa Hanzen | 4/10 | 5388 days | 21% |
| Lauren McKeone | 7/10 | 5394 days | 31% |
| Faye Cox | 7/10 | 5394 days | 31% |
| pudddddin | 9/10 | 5396 days | 33% |
| alicevarren | 9/10 | 5396 days | 33% |
| irisheyes | 7/10 | 5396 days | 31% |
| Steff | 7/10 | 5416 days | 31% |
| Forestal Youri | 7/10 | 5416 days | 31% |
| Amanda Craig | 8/10 | 5418 days | 32% |
| Olle Beide | 8/10 | 5424 days | 32% |
| JonathanMills | 8/10 | 5424 days | 32% |
| lisa | 9/10 | 5455 days | 33% |
| phydough | 6/10 | 5486 days | 28% |
| zippy | 10/10 | 5577 days | 33% |
| TerriH | 10/10 | 5608 days | 33% |
| ciara | 10/10 | 5639 days | 33% |
| mel1407 | 10/10 | 5639 days | 33% |
| Claram | 9/10 | 5669 days | 33% |
| joycevanb | 7/10 | 5700 days | 31% |
| JohnG | 10/10 | 5700 days | 33% |
| nicolejr413 | 9/10 | 5730 days | 33% |
| Antoine Migault | 8/10 | 5751 days | 32% |
| Christine T | 7/10 | 5755 days | 31% |
| Kay Beaumont | 8/10 | 5763 days | 32% |
| Johan | 7/10 | 5763 days | 31% |
| S Millet | 9/10 | 5767 days | 33% |
| Jens van Evp | 9/10 | 5785 days | 33% |
| Max Van der Zalm | 9/10 | 5785 days | 33% |
| Emily Walters | 7/10 | 5787 days | 31% |
| Brett Oz | 9/10 | 5820 days | 33% |
| greenbex | 9/10 | 5820 days | 33% |
| simonbo | 3/10 | 5835 days | 17% |
| katesc | 9/10 | 5840 days | 33% |
| martint | 6/10 | 5844 days | 28% |
| richelle | 7/10 | 5844 days | 31% |
| rosalindm | 8/10 | 5845 days | 32% |
| katepat | 8/10 | 5851 days | 32% |
| Beau | 5/10 | 5851 days | 25% |
| Debbie Rathbone | 10/10 | 5858 days | 33% |
| Ricarda | 3/10 | 5861 days | 17% |
| Malinka Nuefeld | 4/10 | 5861 days | 21% |
| Martin | 9/10 | 5861 days | 33% |
| Thomas Willi | 8/10 | 5861 days | 32% |
| Jess Pasos | 9/10 | 5870 days | 33% |
| stettim | 10/10 | 5912 days | 33% |
| Philipp | 9/10 | 5912 days | 33% |
| Holly Mrowiec | 10/10 | 5942 days | 33% |
| Sophie Keate | 10/10 | 5979 days | 33% |
| Sam Lightfoot | 10/10 | 5979 days | 33% |
| Jenny Lee | 7/10 | 6001 days | 31% |
| Cat Payne | 9/10 | 6008 days | 33% |
| Catherine Smiles | 10/10 | 6009 days | 33% |
| Nikki Turner | 9/10 | 6016 days | 33% |
| TaraD | 10/10 | 6093 days | 33% |
| BiancaA | 9/10 | 6093 days | 33% |
| hibbler | 10/10 | 6095 days | 33% |
| ferdinande | 7/10 | 6096 days | 31% |
| mariea | 8/10 | 6107 days | 32% |
| JennekeK | 6/10 | 6107 days | 28% |
| Ross | 5/10 | 6109 days | 25% |
| MarielR | 7/10 | 6113 days | 31% |
| NikW | 8/10 | 6113 days | 32% |
| Anna Skeer | 9/10 | 6136 days | 33% |
| EmmaB1 | 8/10 | 6141 days | 32% |
| BethanD | 9/10 | 6142 days | 33% |
| renanf | 8/10 | 6146 days | 32% |
| Laura Muser | 9/10 | 6153 days | 33% |
| Alan Gallagher | 7/10 | 6154 days | 31% |
| Ellen Perrin | 9/10 | 6154 days | 33% |
| Julia | 7/10 | 6157 days | 31% |
| Philipp | 10/10 | 6159 days | 33% |
| Marieke | 3/10 | 6161 days | 17% |
| Katie | 10/10 | 6164 days | 33% |
| Ann-Kathren | 7/10 | 6167 days | 31% |
| Sonja | 8/10 | 6200 days | 32% |
| Claudia Schmidt | 9/10 | 6211 days | 33% |
| sylvia | 8/10 | 6216 days | 32% |
| Amy Newton | 10/10 | 6219 days | 33% |
| debsnz | 10/10 | 6232 days | 33% |
| Nicole | 3/10 | 6242 days | 17% |
| Spike | 7/10 | 6301 days | 31% |
| Sam Prior | 8/10 | 6310 days | 32% |
| Marco | 7/10 | 6334 days | 31% |
| Meike Biel | 8/10 | 6445 days | 32% |
| Helen | 8/10 | 6445 days | 32% |
| Mark | 7/10 | 6465 days | 31% |
| Julie | 5/10 | 6475 days | 25% |
| Marlo | 7/10 | 6482 days | 31% |
| Simon Mills | 8/10 | 6492 days | 32% |
| Sayaka | 4/10 | 6507 days | 21% |
| Camille | 10/10 | 6508 days | 33% |
| Anders | 9/10 | 6508 days | 33% |
| Laura | 8/10 | 6531 days | 32% |
| Ian | 7/10 | 6535 days | 31% |
| Carole Roccia | 6/10 | 6536 days | 28% |
| Thierry Berdah | 8/10 | 6538 days | 32% |
| Helena | 8/10 | 6538 days | 32% |
| Peter Katafey | 6/10 | 6538 days | 28% |
| Lindsey Woosnam | 5/10 | 6538 days | 25% |
| Katherine | 7/10 | 6541 days | 31% |
| Fred | 6/10 | 6542 days | 28% |
| Rob | 5/10 | 6542 days | 25% |
| Gav | 10/10 | 6542 days | 33% |
| Tom Anson | 8/10 | 6543 days | 32% |
| Paul Cowie | 10/10 | 6570 days | 33% |
| Jim | 8/10 | 6579 days | 32% |
| Willemien | 7/10 | 6587 days | 31% |
| Helen | 8/10 | 6813 days | 32% |
| David | 5/10 | 6816 days | 25% |
| Stefan | 7/10 | 6816 days | 31% |
| Gwen | 8/10 | 6819 days | 32% |
| Hanneke | 8/10 | 6823 days | 32% |
| Matt | 7/10 | 6823 days | 31% |
| Alex | 8/10 | 6823 days | 32% |
| Johnny | 8/10 | 6823 days | 32% |
| Aaron | 9/10 | 6823 days | 33% |
| Hilary | 10/10 | 6832 days | 33% |
| Nina | 8/10 | 6867 days | 32% |
| Italy | 9/10 | 6867 days | 33% |
| Helle | 7/10 | 6867 days | 31% |
| KikiNelissen | 7/10 | 6873 days | 31% |
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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
2.95% 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.