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
89.13%
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 | 3245 days | 100% |
| Jessica Freeland | 9/10 | 3290 days | 97% |
| Jolien | 8/10 | 3293 days | 96% |
| Cathrin Wisgiekl | 8/10 | 4314 days | 5% |
| Marc Engstle | 5/10 | 4332 days | 2% |
| Matthias Freiling | 7/10 | 4336 days | 3% |
| Johannes | 7/10 | 4337 days | 3% |
| Josefina Tassone | 10/10 | 4359 days | 1% |
| Hendrik Schanz | 9/10 | 4362 days | 1% |
| Philip Gosemann | 9/10 | 4362 days | 1% |
| Jake Bell | 10/10 | 4369 days | 0% |
| Neele & Philipp | 9/10 | 4685 days | 45% |
| Laurits and Bettina | 8/10 | 4772 days | 44% |
| Curry | 10/10 | 5143 days | 45% |
| Craig Hathaway | 10/10 | 5374 days | 45% |
| Sarah James | 10/10 | 5374 days | 45% |
| Nicola Young | 6/10 | 5374 days | 39% |
| Isabell | 10/10 | 5394 days | 45% |
| Justin Pearce | 4/10 | 5410 days | 29% |
| tandysandhu | 10/10 | 5465 days | 45% |
| alexiap | 8/10 | 5496 days | 44% |
| TerriH | 10/10 | 5618 days | 45% |
| Marea | 9/10 | 5649 days | 45% |
| Pete & Judy McChesney | 10/10 | 5703 days | 45% |
| claireamanda | 9/10 | 5710 days | 45% |
| laurabridges | 10/10 | 5710 days | 45% |
| Ben Thomas | 10/10 | 5740 days | 45% |
| sam jones | 10/10 | 5771 days | 45% |
| Rachel Honore | 10/10 | 5771 days | 45% |
| Pip | 10/10 | 5771 days | 45% |
| Kay Beaumont | 8/10 | 5773 days | 44% |
| Alzbeta Czech | 10/10 | 5785 days | 45% |
| sazz | 10/10 | 5799 days | 45% |
| Amelie Sutcliffe | 10/10 | 5799 days | 45% |
| iep_crew | 10/10 | 5799 days | 45% |
| Kane Chain | 8/10 | 5816 days | 44% |
| stroalki | 7/10 | 5830 days | 42% |
| Angela Stringer | 9/10 | 5830 days | 45% |
| hendrik gottschalk | 10/10 | 5830 days | 45% |
| katesc | 9/10 | 5850 days | 45% |
| rosalindm | 10/10 | 5855 days | 45% |
| Lesley Nixon | 6/10 | 5871 days | 39% |
| bondd | 10/10 | 5970 days | 45% |
| Keith | 9/10 | 6129 days | 45% |
| kiwibrit86 | 9/10 | 6149 days | 45% |
| NinaH1 | 8/10 | 6155 days | 44% |
| renanf | 9/10 | 6156 days | 45% |
| DaraghD | 9/10 | 6162 days | 45% |
| Michael | 8/10 | 6168 days | 44% |
| Lucas | 4/10 | 6168 days | 29% |
| Jasmine | 10/10 | 6171 days | 45% |
| Liekens | 8/10 | 6226 days | 44% |
| jfletch | 10/10 | 6236 days | 45% |
| Lisa | 10/10 | 6237 days | 45% |
| siobhan | 10/10 | 6239 days | 45% |
| mike brett | 8/10 | 6239 days | 44% |
| Evelyn | 7/10 | 6240 days | 42% |
| Ben | 10/10 | 6246 days | 45% |
| Chris | 10/10 | 6281 days | 45% |
| maria d | 10/10 | 6348 days | 45% |
| JP Alberto | 10/10 | 6350 days | 45% |
| Daniala | 9/10 | 6373 days | 45% |
| Rhys Howell | 9/10 | 6439 days | 45% |
| Toni Keown | 10/10 | 6464 days | 45% |
| Nicnac | 9/10 | 6471 days | 45% |
| Mark | 9/10 | 6475 days | 45% |
| Claire | 10/10 | 6491 days | 45% |
| Stephanie | 10/10 | 6517 days | 45% |
| Marc Hertogs | 9/10 | 6521 days | 45% |
| Chris | 8/10 | 6530 days | 44% |
| Stacey | 10/10 | 6530 days | 45% |
| Andre Obineche | 10/10 | 6545 days | 45% |
| Hayley | 7/10 | 6545 days | 42% |
| Lindsey Woosnam | 9/10 | 6548 days | 45% |
| Fred | 6/10 | 6552 days | 39% |
| Anneli | 10/10 | 6553 days | 45% |
| Tom Anson | 8/10 | 6553 days | 44% |
| Rich | 9/10 | 6586 days | 45% |
| Neil Cooke | 8/10 | 6587 days | 44% |
| Manuel | 9/10 | 6594 days | 45% |
| Tom Clements | 8/10 | 6595 days | 44% |
| Richard Kindgren | 8/10 | 6597 days | 44% |
| Linda | 10/10 | 6821 days | 45% |
| ShoshanaAbrams | 9/10 | 6826 days | 45% |
| LauraMarini | 9/10 | 6830 days | 45% |
| Cohen | 8/10 | 6831 days | 44% |
| Valerie | 8/10 | 6832 days | 44% |
| Matt | 7/10 | 6833 days | 42% |
| Kate | 10/10 | 6835 days | 45% |
| AnnaHerbert | 10/10 | 6841 days | 45% |
| Austin | 9/10 | 6849 days | 45% |
| Claire | 9/10 | 6849 days | 45% |
| AnnaOwen | 10/10 | 6860 days | 45% |
| AndrewEwen | 6/10 | 6860 days | 39% |
| Nina | 7/10 | 6877 days | 42% |
| Helen | 10/10 | 6877 days | 45% |
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
-4.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
Balancing Adjustment
1.81% 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.