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
84.14%
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 | 2819 days | 100% |
| Tom C | 10/10 | 3610 days | 53% |
| Jodie | 10/10 | 3610 days | 53% |
| Paul | 10/10 | 3610 days | 53% |
| Christin Ossege | 10/10 | 3732 days | 43% |
| Theodore Trozinski | 9/10 | 3792 days | 37% |
| Phil Hartmann | 10/10 | 3945 days | 25% |
| dana forrest | 10/10 | 4037 days | 18% |
| Abbi Smith | 10/10 | 4098 days | 13% |
| Nicko Wong | 10/10 | 4129 days | 10% |
| Jodine | 10/10 | 4157 days | 8% |
| Samuel Berwick | 10/10 | 4157 days | 8% |
| Amy Jellings | 10/10 | 4249 days | 0% |
| Anna Elden | 9/10 | 4249 days | 0% |
| Andrea Leichtl | 10/10 | 4463 days | 31% |
| Johanna Molenaar | 7/10 | 4463 days | 28% |
| Claudia Bauch | 3/10 | 4492 days | 12% |
| Charlotte Wilson | 10/10 | 4494 days | 31% |
| Chris Luebbi | 8/10 | 4494 days | 31% |
| jason beinstein | 9/10 | 4522 days | 31% |
| discoveringaway | 9/10 | 4522 days | 31% |
| ieva m | 8/10 | 4553 days | 31% |
| Sonia | 10/10 | 4553 days | 31% |
| Zsolt | 10/10 | 4553 days | 31% |
| Victoria Wander | 10/10 | 4553 days | 31% |
| TtotheT13 | 9/10 | 4584 days | 31% |
| Kim O'Neill | 10/10 | 4614 days | 31% |
| Maia Kazaks | 8/10 | 4614 days | 31% |
| Colette Keely | 10/10 | 4645 days | 31% |
| Jen Hards | 10/10 | 4675 days | 31% |
| Thomas Jones | 10/10 | 4706 days | 31% |
| Raj Singh | 10/10 | 4706 days | 31% |
| Sohie | 9/10 | 4864 days | 31% |
| Robin Andersson | 9/10 | 4887 days | 31% |
| Megan Gallagher | 10/10 | 4918 days | 31% |
| Andy Brown | 10/10 | 4918 days | 31% |
| Vinnie K | 10/10 | 4979 days | 31% |
| Heather_Oz | 9/10 | 5040 days | 31% |
| luciasolda | 10/10 | 5102 days | 31% |
| jennyj | 10/10 | 5132 days | 31% |
| dwehrtmann | 9/10 | 5163 days | 31% |
| Evaislief | 10/10 | 5193 days | 31% |
| Malena | 10/10 | 5224 days | 31% |
| navilink | 10/10 | 5224 days | 31% |
| meganb04 | 10/10 | 5224 days | 31% |
| MaryG | 10/10 | 5224 days | 31% |
| JoPycroft | 10/10 | 5224 days | 31% |
| lovebyname | 9/10 | 5224 days | 31% |
| Sonia Sennane | 7/10 | 5225 days | 28% |
| Tamara McVey | 7/10 | 5236 days | 28% |
| Rachel | 7/10 | 5238 days | 28% |
| Danielle & Jobbe | 8/10 | 5238 days | 31% |
| Andy Bridgman | 8/10 | 5238 days | 31% |
| Fiona Finke | 6/10 | 5244 days | 26% |
| Miron & Hendrik | 8/10 | 5248 days | 31% |
| marielou | 10/10 | 5253 days | 31% |
| iainmcgin | 10/10 | 5253 days | 31% |
| redkeels | 10/10 | 5253 days | 31% |
| lulu | 6/10 | 5284 days | 26% |
| Boogie | 5/10 | 5315 days | 21% |
| isha | 9/10 | 5315 days | 31% |
| pepper | 9/10 | 5345 days | 31% |
| Kez | 10/10 | 5376 days | 31% |
| Brilly01 | 8/10 | 5376 days | 31% |
| yens123 | 9/10 | 5376 days | 31% |
| louiset | 9/10 | 5376 days | 31% |
| siek09 | 9/10 | 5406 days | 31% |
| rosey | 10/10 | 5437 days | 31% |
| Cadz | 10/10 | 5437 days | 31% |
| natalietrueman84 | 10/10 | 5468 days | 31% |
| Josie | 10/10 | 5468 days | 31% |
| Scott_and_Stephanie | 9/10 | 5559 days | 31% |
| Samantha | 10/10 | 5559 days | 31% |
| Tracey Airiscough | 9/10 | 5581 days | 31% |
| Vanessa Hanzen | 4/10 | 5582 days | 17% |
| Lauren McKeone | 7/10 | 5588 days | 28% |
| Faye Cox | 7/10 | 5588 days | 28% |
| pudddddin | 9/10 | 5590 days | 31% |
| alicevarren | 9/10 | 5590 days | 31% |
| irisheyes | 7/10 | 5590 days | 28% |
| Steff | 7/10 | 5610 days | 28% |
| Forestal Youri | 7/10 | 5610 days | 28% |
| Amanda Craig | 8/10 | 5612 days | 31% |
| Olle Beide | 8/10 | 5618 days | 31% |
| JonathanMills | 8/10 | 5618 days | 31% |
| lisa | 9/10 | 5649 days | 31% |
| phydough | 6/10 | 5680 days | 26% |
| zippy | 10/10 | 5771 days | 31% |
| TerriH | 10/10 | 5802 days | 31% |
| ciara | 10/10 | 5833 days | 31% |
| mel1407 | 10/10 | 5833 days | 31% |
| Claram | 9/10 | 5863 days | 31% |
| joycevanb | 7/10 | 5894 days | 28% |
| JohnG | 10/10 | 5894 days | 31% |
| nicolejr413 | 9/10 | 5924 days | 31% |
| Antoine Migault | 8/10 | 5945 days | 31% |
| Christine T | 7/10 | 5949 days | 28% |
| Kay Beaumont | 8/10 | 5957 days | 31% |
| Johan | 7/10 | 5957 days | 28% |
| S Millet | 9/10 | 5961 days | 31% |
| Jens van Evp | 9/10 | 5979 days | 31% |
| Max Van der Zalm | 9/10 | 5979 days | 31% |
| Emily Walters | 7/10 | 5981 days | 28% |
| Brett Oz | 9/10 | 6014 days | 31% |
| greenbex | 9/10 | 6014 days | 31% |
| simonbo | 3/10 | 6029 days | 12% |
| katesc | 9/10 | 6034 days | 31% |
| martint | 6/10 | 6038 days | 26% |
| richelle | 7/10 | 6038 days | 28% |
| rosalindm | 8/10 | 6039 days | 31% |
| katepat | 8/10 | 6045 days | 31% |
| Beau | 5/10 | 6045 days | 21% |
| Debbie Rathbone | 10/10 | 6052 days | 31% |
| Ricarda | 3/10 | 6055 days | 12% |
| Malinka Nuefeld | 4/10 | 6055 days | 17% |
| Martin | 9/10 | 6055 days | 31% |
| Thomas Willi | 8/10 | 6055 days | 31% |
| Jess Pasos | 9/10 | 6064 days | 31% |
| stettim | 10/10 | 6106 days | 31% |
| Philipp | 9/10 | 6106 days | 31% |
| Holly Mrowiec | 10/10 | 6136 days | 31% |
| Sophie Keate | 10/10 | 6173 days | 31% |
| Sam Lightfoot | 10/10 | 6173 days | 31% |
| Jenny Lee | 7/10 | 6195 days | 28% |
| Cat Payne | 9/10 | 6202 days | 31% |
| Catherine Smiles | 10/10 | 6203 days | 31% |
| Nikki Turner | 9/10 | 6210 days | 31% |
| TaraD | 10/10 | 6287 days | 31% |
| BiancaA | 9/10 | 6287 days | 31% |
| hibbler | 10/10 | 6289 days | 31% |
| ferdinande | 7/10 | 6290 days | 28% |
| mariea | 8/10 | 6301 days | 31% |
| JennekeK | 6/10 | 6301 days | 26% |
| Ross | 5/10 | 6303 days | 21% |
| MarielR | 7/10 | 6307 days | 28% |
| NikW | 8/10 | 6307 days | 31% |
| Anna Skeer | 9/10 | 6330 days | 31% |
| EmmaB1 | 8/10 | 6335 days | 31% |
| BethanD | 9/10 | 6336 days | 31% |
| renanf | 8/10 | 6340 days | 31% |
| Laura Muser | 9/10 | 6348 days | 31% |
| Alan Gallagher | 7/10 | 6348 days | 28% |
| Ellen Perrin | 9/10 | 6348 days | 31% |
| Julia | 7/10 | 6351 days | 28% |
| Philipp | 10/10 | 6354 days | 31% |
| Marieke | 3/10 | 6355 days | 12% |
| Katie | 10/10 | 6358 days | 31% |
| Ann-Kathren | 7/10 | 6361 days | 28% |
| Sonja | 8/10 | 6394 days | 31% |
| Claudia Schmidt | 9/10 | 6406 days | 31% |
| sylvia | 8/10 | 6411 days | 31% |
| Amy Newton | 10/10 | 6414 days | 31% |
| debsnz | 10/10 | 6427 days | 31% |
| Nicole | 3/10 | 6436 days | 12% |
| Spike | 7/10 | 6496 days | 28% |
| Sam Prior | 8/10 | 6505 days | 31% |
| Marco | 7/10 | 6529 days | 28% |
| Meike Biel | 8/10 | 6639 days | 31% |
| Helen | 8/10 | 6639 days | 31% |
| Mark | 7/10 | 6659 days | 28% |
| Julie | 5/10 | 6669 days | 21% |
| Marlo | 7/10 | 6676 days | 28% |
| Simon Mills | 8/10 | 6686 days | 31% |
| Sayaka | 4/10 | 6701 days | 17% |
| Camille | 10/10 | 6702 days | 31% |
| Anders | 9/10 | 6702 days | 31% |
| Laura | 8/10 | 6725 days | 31% |
| Ian | 7/10 | 6729 days | 28% |
| Carole Roccia | 6/10 | 6730 days | 26% |
| Thierry Berdah | 8/10 | 6732 days | 31% |
| Helena | 8/10 | 6732 days | 31% |
| Peter Katafey | 6/10 | 6732 days | 26% |
| Lindsey Woosnam | 5/10 | 6732 days | 21% |
| Katherine | 7/10 | 6735 days | 28% |
| Fred | 6/10 | 6736 days | 26% |
| Rob | 5/10 | 6736 days | 21% |
| Gav | 10/10 | 6736 days | 31% |
| Tom Anson | 8/10 | 6737 days | 31% |
| Paul Cowie | 10/10 | 6764 days | 31% |
| Jim | 8/10 | 6773 days | 31% |
| Willemien | 7/10 | 6781 days | 28% |
| Helen | 8/10 | 7007 days | 31% |
| David | 5/10 | 7010 days | 21% |
| Stefan | 7/10 | 7010 days | 28% |
| Gwen | 8/10 | 7013 days | 31% |
| Hanneke | 8/10 | 7017 days | 31% |
| Matt | 7/10 | 7017 days | 28% |
| Alex | 8/10 | 7017 days | 31% |
| Johnny | 8/10 | 7017 days | 31% |
| Aaron | 9/10 | 7017 days | 31% |
| Hilary | 10/10 | 7026 days | 31% |
| Nina | 8/10 | 7061 days | 31% |
| Italy | 9/10 | 7061 days | 31% |
| Helle | 7/10 | 7061 days | 28% |
| KikiNelissen | 7/10 | 7067 days | 28% |
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
-2.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 118 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 | -2.12% |
| 198 | -2.13% |
| 199 | -2.14% |
| 200 | -2.15% |
| 201 | -2.16% |
| 202 | -2.17% |
| 203 | -2.18% |
| … | … |
Balancing Adjustment
2.48% 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.