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
84.64%
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 | 2314 days | 100% |
| Tom C | 10/10 | 3104 days | 71% |
| Jodie | 10/10 | 3104 days | 71% |
| Paul | 10/10 | 3104 days | 71% |
| Christin Ossege | 10/10 | 3226 days | 64% |
| Theodore Trozinski | 9/10 | 3286 days | 60% |
| Phil Hartmann | 10/10 | 3439 days | 52% |
| dana forrest | 10/10 | 3531 days | 47% |
| Abbi Smith | 10/10 | 3592 days | 44% |
| Nicko Wong | 10/10 | 3623 days | 42% |
| Jodine | 10/10 | 3651 days | 40% |
| Samuel Berwick | 10/10 | 3651 days | 40% |
| Amy Jellings | 10/10 | 3743 days | 35% |
| Anna Elden | 9/10 | 3743 days | 35% |
| Andrea Leichtl | 10/10 | 3958 days | 23% |
| Johanna Molenaar | 7/10 | 3958 days | 21% |
| Claudia Bauch | 3/10 | 3987 days | 11% |
| Charlotte Wilson | 10/10 | 3988 days | 21% |
| Chris Luebbi | 8/10 | 3989 days | 21% |
| jason beinstein | 9/10 | 4016 days | 19% |
| discoveringaway | 9/10 | 4017 days | 19% |
| ieva m | 8/10 | 4048 days | 17% |
| Sonia | 10/10 | 4048 days | 18% |
| Zsolt | 10/10 | 4048 days | 18% |
| Victoria Wander | 10/10 | 4048 days | 18% |
| TtotheT13 | 9/10 | 4079 days | 16% |
| Kim O'Neill | 10/10 | 4109 days | 14% |
| Maia Kazaks | 8/10 | 4109 days | 14% |
| Colette Keely | 10/10 | 4140 days | 12% |
| Jen Hards | 10/10 | 4170 days | 11% |
| Thomas Jones | 10/10 | 4201 days | 9% |
| Raj Singh | 10/10 | 4201 days | 9% |
| Sohie | 9/10 | 4359 days | 0% |
| Robin Andersson | 9/10 | 4382 days | 28% |
| Megan Gallagher | 10/10 | 4413 days | 28% |
| Andy Brown | 10/10 | 4413 days | 28% |
| Vinnie K | 10/10 | 4474 days | 28% |
| Heather_Oz | 9/10 | 4535 days | 28% |
| luciasolda | 10/10 | 4597 days | 28% |
| jennyj | 10/10 | 4627 days | 28% |
| dwehrtmann | 9/10 | 4658 days | 28% |
| Evaislief | 10/10 | 4688 days | 28% |
| Malena | 10/10 | 4719 days | 28% |
| navilink | 10/10 | 4719 days | 28% |
| meganb04 | 10/10 | 4719 days | 28% |
| MaryG | 10/10 | 4719 days | 28% |
| JoPycroft | 10/10 | 4719 days | 28% |
| lovebyname | 9/10 | 4719 days | 28% |
| Sonia Sennane | 7/10 | 4720 days | 26% |
| Tamara McVey | 7/10 | 4731 days | 26% |
| Rachel | 7/10 | 4733 days | 26% |
| Danielle & Jobbe | 8/10 | 4733 days | 27% |
| Andy Bridgman | 8/10 | 4733 days | 27% |
| Fiona Finke | 6/10 | 4739 days | 24% |
| Miron & Hendrik | 8/10 | 4743 days | 27% |
| marielou | 10/10 | 4748 days | 28% |
| iainmcgin | 10/10 | 4748 days | 28% |
| redkeels | 10/10 | 4748 days | 28% |
| lulu | 6/10 | 4779 days | 24% |
| Boogie | 5/10 | 4810 days | 21% |
| isha | 9/10 | 4810 days | 28% |
| pepper | 9/10 | 4840 days | 28% |
| Kez | 10/10 | 4871 days | 28% |
| Brilly01 | 8/10 | 4871 days | 27% |
| yens123 | 9/10 | 4871 days | 28% |
| louiset | 9/10 | 4871 days | 28% |
| siek09 | 9/10 | 4901 days | 28% |
| rosey | 10/10 | 4932 days | 28% |
| Cadz | 10/10 | 4932 days | 28% |
| natalietrueman84 | 10/10 | 4963 days | 28% |
| Josie | 10/10 | 4963 days | 28% |
| Scott_and_Stephanie | 9/10 | 5054 days | 28% |
| Samantha | 10/10 | 5054 days | 28% |
| Tracey Airiscough | 9/10 | 5076 days | 28% |
| Vanessa Hanzen | 4/10 | 5077 days | 18% |
| Lauren McKeone | 7/10 | 5083 days | 26% |
| Faye Cox | 7/10 | 5083 days | 26% |
| pudddddin | 9/10 | 5085 days | 28% |
| alicevarren | 9/10 | 5085 days | 28% |
| irisheyes | 7/10 | 5085 days | 26% |
| Steff | 7/10 | 5105 days | 26% |
| Forestal Youri | 7/10 | 5105 days | 26% |
| Amanda Craig | 8/10 | 5107 days | 27% |
| Olle Beide | 8/10 | 5113 days | 27% |
| JonathanMills | 8/10 | 5113 days | 27% |
| lisa | 9/10 | 5144 days | 28% |
| phydough | 6/10 | 5175 days | 24% |
| zippy | 10/10 | 5266 days | 28% |
| TerriH | 10/10 | 5297 days | 28% |
| ciara | 10/10 | 5328 days | 28% |
| mel1407 | 10/10 | 5328 days | 28% |
| Claram | 9/10 | 5358 days | 28% |
| joycevanb | 7/10 | 5389 days | 26% |
| JohnG | 10/10 | 5389 days | 28% |
| nicolejr413 | 9/10 | 5419 days | 28% |
| Antoine Migault | 8/10 | 5440 days | 27% |
| Christine T | 7/10 | 5444 days | 26% |
| Kay Beaumont | 8/10 | 5452 days | 27% |
| Johan | 7/10 | 5452 days | 26% |
| S Millet | 9/10 | 5456 days | 28% |
| Jens van Evp | 9/10 | 5474 days | 28% |
| Max Van der Zalm | 9/10 | 5474 days | 28% |
| Emily Walters | 7/10 | 5476 days | 26% |
| Brett Oz | 9/10 | 5509 days | 28% |
| greenbex | 9/10 | 5509 days | 28% |
| simonbo | 3/10 | 5524 days | 15% |
| katesc | 9/10 | 5529 days | 28% |
| martint | 6/10 | 5533 days | 24% |
| richelle | 7/10 | 5533 days | 26% |
| rosalindm | 8/10 | 5534 days | 27% |
| katepat | 8/10 | 5540 days | 27% |
| Beau | 5/10 | 5540 days | 21% |
| Debbie Rathbone | 10/10 | 5547 days | 28% |
| Ricarda | 3/10 | 5550 days | 15% |
| Malinka Nuefeld | 4/10 | 5550 days | 18% |
| Martin | 9/10 | 5550 days | 28% |
| Thomas Willi | 8/10 | 5550 days | 27% |
| Jess Pasos | 9/10 | 5559 days | 28% |
| stettim | 10/10 | 5601 days | 28% |
| Philipp | 9/10 | 5601 days | 28% |
| Holly Mrowiec | 10/10 | 5631 days | 28% |
| Sophie Keate | 10/10 | 5668 days | 28% |
| Sam Lightfoot | 10/10 | 5668 days | 28% |
| Jenny Lee | 7/10 | 5690 days | 26% |
| Cat Payne | 9/10 | 5697 days | 28% |
| Catherine Smiles | 10/10 | 5698 days | 28% |
| Nikki Turner | 9/10 | 5705 days | 28% |
| TaraD | 10/10 | 5782 days | 28% |
| BiancaA | 9/10 | 5782 days | 28% |
| hibbler | 10/10 | 5784 days | 28% |
| ferdinande | 7/10 | 5785 days | 26% |
| mariea | 8/10 | 5796 days | 27% |
| JennekeK | 6/10 | 5796 days | 24% |
| Ross | 5/10 | 5798 days | 21% |
| MarielR | 7/10 | 5802 days | 26% |
| NikW | 8/10 | 5802 days | 27% |
| Anna Skeer | 9/10 | 5825 days | 28% |
| EmmaB1 | 8/10 | 5830 days | 27% |
| BethanD | 9/10 | 5831 days | 28% |
| renanf | 8/10 | 5835 days | 27% |
| Laura Muser | 9/10 | 5842 days | 28% |
| Alan Gallagher | 7/10 | 5843 days | 26% |
| Ellen Perrin | 9/10 | 5843 days | 28% |
| Julia | 7/10 | 5846 days | 26% |
| Philipp | 10/10 | 5848 days | 28% |
| Marieke | 3/10 | 5850 days | 15% |
| Katie | 10/10 | 5853 days | 28% |
| Ann-Kathren | 7/10 | 5856 days | 26% |
| Sonja | 8/10 | 5889 days | 27% |
| Claudia Schmidt | 9/10 | 5900 days | 28% |
| sylvia | 8/10 | 5905 days | 27% |
| Amy Newton | 10/10 | 5908 days | 28% |
| debsnz | 10/10 | 5921 days | 28% |
| Nicole | 3/10 | 5931 days | 15% |
| Spike | 7/10 | 5990 days | 26% |
| Sam Prior | 8/10 | 5999 days | 27% |
| Marco | 7/10 | 6023 days | 26% |
| Meike Biel | 8/10 | 6134 days | 27% |
| Helen | 8/10 | 6134 days | 27% |
| Mark | 7/10 | 6154 days | 26% |
| Julie | 5/10 | 6164 days | 21% |
| Marlo | 7/10 | 6171 days | 26% |
| Simon Mills | 8/10 | 6181 days | 27% |
| Sayaka | 4/10 | 6196 days | 18% |
| Camille | 10/10 | 6197 days | 28% |
| Anders | 9/10 | 6197 days | 28% |
| Laura | 8/10 | 6220 days | 27% |
| Ian | 7/10 | 6224 days | 26% |
| Carole Roccia | 6/10 | 6225 days | 24% |
| Thierry Berdah | 8/10 | 6227 days | 27% |
| Helena | 8/10 | 6227 days | 27% |
| Peter Katafey | 6/10 | 6227 days | 24% |
| Lindsey Woosnam | 5/10 | 6227 days | 21% |
| Katherine | 7/10 | 6230 days | 26% |
| Fred | 6/10 | 6231 days | 24% |
| Rob | 5/10 | 6231 days | 21% |
| Gav | 10/10 | 6231 days | 28% |
| Tom Anson | 8/10 | 6232 days | 27% |
| Paul Cowie | 10/10 | 6259 days | 28% |
| Jim | 8/10 | 6268 days | 27% |
| Willemien | 7/10 | 6276 days | 26% |
| Helen | 8/10 | 6502 days | 27% |
| David | 5/10 | 6505 days | 21% |
| Stefan | 7/10 | 6505 days | 26% |
| Gwen | 8/10 | 6508 days | 27% |
| Hanneke | 8/10 | 6512 days | 27% |
| Matt | 7/10 | 6512 days | 26% |
| Alex | 8/10 | 6512 days | 27% |
| Johnny | 8/10 | 6512 days | 27% |
| Aaron | 9/10 | 6512 days | 28% |
| Hilary | 10/10 | 6521 days | 28% |
| Nina | 8/10 | 6556 days | 27% |
| Italy | 9/10 | 6556 days | 28% |
| Helle | 7/10 | 6556 days | 26% |
| KikiNelissen | 7/10 | 6562 days | 26% |
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
-4.14% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 49 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 | -4.08% |
| 198 | -4.10% |
| 199 | -4.12% |
| 200 | -4.14% |
| 201 | -4.16% |
| 202 | -4.18% |
| 203 | -4.20% |
| … | … |
Balancing Adjustment
2.86% 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.