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 Kaitiaki Adventures Rafting and Sledging.
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.
Kaitiaki Adventures Rafting and Sledging
Valid Reviews
96 Valid Reviews
The Kaitiaki Adventures Rafting and Sledging experience has a total of 100 reviews. There are 96 valid reviews that are included when calculating the ranking score and 4 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 96 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 40 |
|
42% |
| 9/10 | 24 |
|
25% |
| 8/10 | 18 |
|
19% |
| 7/10 | 7 |
|
7% |
| 6/10 | 4 |
|
4% |
| 5/10 | 1 |
|
1% |
| 4/10 | 2 |
|
2% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
88.13% Average
The raw data average (mean) for all the Kaitiaki Adventures Rafting and Sledging valid reviews is 88.13% and is based on 96 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
71 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 96 valid reviews, the experience has 71 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 71 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 25 |
|
35% |
| 9/10 | 17 |
|
24% |
| 8/10 | 16 |
|
23% |
| 7/10 | 6 |
|
8% |
| 6/10 | 4 |
|
6% |
| 5/10 | 1 |
|
1% |
| 4/10 | 2 |
|
3% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
85.92% Average
The raw data average (mean) for all the Kaitiaki Adventures Rafting and Sledging face-to-face reviews is 85.92% and is based on 71 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
88.58%
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 |
|---|---|---|---|
| Alex Victor | 8/10 | 2790 days | 100% |
| Jessica Freeland | 9/10 | 2835 days | 98% |
| Jolien | 8/10 | 2838 days | 97% |
| Cathrin Wisgiekl | 8/10 | 3859 days | 30% |
| Marc Engstle | 5/10 | 3877 days | 21% |
| Matthias Freiling | 7/10 | 3881 days | 27% |
| Johannes | 7/10 | 3882 days | 27% |
| Josefina Tassone | 10/10 | 3904 days | 28% |
| Hendrik Schanz | 9/10 | 3907 days | 27% |
| Philip Gosemann | 9/10 | 3907 days | 27% |
| Jake Bell | 10/10 | 3914 days | 27% |
| Neele & Philipp | 9/10 | 4230 days | 6% |
| Laurits and Bettina | 8/10 | 4317 days | 0% |
| Curry | 10/10 | 4688 days | 30% |
| Craig Hathaway | 10/10 | 4919 days | 30% |
| Sarah James | 10/10 | 4919 days | 30% |
| Nicola Young | 6/10 | 4919 days | 25% |
| Isabell | 10/10 | 4939 days | 30% |
| Justin Pearce | 4/10 | 4955 days | 18% |
| tandysandhu | 10/10 | 5010 days | 30% |
| alexiap | 8/10 | 5041 days | 29% |
| TerriH | 10/10 | 5163 days | 30% |
| Marea | 9/10 | 5194 days | 30% |
| Pete & Judy McChesney | 10/10 | 5248 days | 30% |
| claireamanda | 9/10 | 5255 days | 30% |
| laurabridges | 10/10 | 5255 days | 30% |
| Ben Thomas | 10/10 | 5285 days | 30% |
| sam jones | 10/10 | 5316 days | 30% |
| Rachel Honore | 10/10 | 5316 days | 30% |
| Pip | 10/10 | 5316 days | 30% |
| Kay Beaumont | 8/10 | 5318 days | 29% |
| Alzbeta Czech | 10/10 | 5330 days | 30% |
| sazz | 10/10 | 5344 days | 30% |
| Amelie Sutcliffe | 10/10 | 5344 days | 30% |
| iep_crew | 10/10 | 5344 days | 30% |
| Kane Chain | 8/10 | 5361 days | 29% |
| stroalki | 7/10 | 5375 days | 28% |
| Angela Stringer | 9/10 | 5375 days | 30% |
| hendrik gottschalk | 10/10 | 5375 days | 30% |
| katesc | 9/10 | 5395 days | 30% |
| rosalindm | 10/10 | 5400 days | 30% |
| Lesley Nixon | 6/10 | 5416 days | 25% |
| bondd | 10/10 | 5515 days | 30% |
| Keith | 9/10 | 5675 days | 30% |
| kiwibrit86 | 9/10 | 5694 days | 30% |
| NinaH1 | 8/10 | 5700 days | 29% |
| renanf | 9/10 | 5701 days | 30% |
| DaraghD | 9/10 | 5707 days | 30% |
| Michael | 8/10 | 5713 days | 29% |
| Lucas | 4/10 | 5713 days | 18% |
| Jasmine | 10/10 | 5717 days | 30% |
| Liekens | 8/10 | 5771 days | 29% |
| jfletch | 10/10 | 5781 days | 30% |
| Lisa | 10/10 | 5782 days | 30% |
| siobhan | 10/10 | 5784 days | 30% |
| mike brett | 8/10 | 5784 days | 29% |
| Evelyn | 7/10 | 5785 days | 28% |
| Ben | 10/10 | 5791 days | 30% |
| Chris | 10/10 | 5826 days | 30% |
| maria d | 10/10 | 5893 days | 30% |
| JP Alberto | 10/10 | 5895 days | 30% |
| Daniala | 9/10 | 5918 days | 30% |
| Rhys Howell | 9/10 | 5984 days | 30% |
| Toni Keown | 10/10 | 6009 days | 30% |
| Nicnac | 9/10 | 6016 days | 30% |
| Mark | 9/10 | 6020 days | 30% |
| Claire | 10/10 | 6036 days | 30% |
| Stephanie | 10/10 | 6062 days | 30% |
| Marc Hertogs | 9/10 | 6066 days | 30% |
| Chris | 8/10 | 6075 days | 29% |
| Stacey | 10/10 | 6075 days | 30% |
| Andre Obineche | 10/10 | 6090 days | 30% |
| Hayley | 7/10 | 6090 days | 28% |
| Lindsey Woosnam | 9/10 | 6093 days | 30% |
| Fred | 6/10 | 6097 days | 25% |
| Anneli | 10/10 | 6098 days | 30% |
| Tom Anson | 8/10 | 6098 days | 29% |
| Rich | 9/10 | 6131 days | 30% |
| Neil Cooke | 8/10 | 6132 days | 29% |
| Manuel | 9/10 | 6139 days | 30% |
| Tom Clements | 8/10 | 6140 days | 29% |
| Richard Kindgren | 8/10 | 6142 days | 29% |
| Linda | 10/10 | 6366 days | 30% |
| ShoshanaAbrams | 9/10 | 6371 days | 30% |
| LauraMarini | 9/10 | 6375 days | 30% |
| Cohen | 8/10 | 6376 days | 29% |
| Valerie | 8/10 | 6377 days | 29% |
| Matt | 7/10 | 6378 days | 28% |
| Kate | 10/10 | 6380 days | 30% |
| AnnaHerbert | 10/10 | 6386 days | 30% |
| Austin | 9/10 | 6394 days | 30% |
| Claire | 9/10 | 6394 days | 30% |
| AnnaOwen | 10/10 | 6405 days | 30% |
| AndrewEwen | 6/10 | 6405 days | 25% |
| Nina | 7/10 | 6422 days | 28% |
| Helen | 10/10 | 6422 days | 30% |
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 Kaitiaki Adventures Rafting and Sledging experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.03% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 75 days. However the Kaitiaki Adventures Rafting and Sledging 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 Kaitiaki Adventures Rafting and Sledging experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.98% |
| 198 | -3.00% |
| 199 | -3.01% |
| 200 | -3.03% |
| 201 | -3.04% |
| 202 | -3.06% |
| 203 | -3.07% |
| … | … |
Balancing Adjustment
1.72% 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
87%
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.