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 Rangitata Rafts Ltd.
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.
Rangitata Rafts Ltd
Valid Reviews
78 Valid Reviews
The Rangitata Rafts Ltd experience has a total of 78 valid reviews. There are no 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 78 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 55 |
|
71% |
| 9/10 | 14 |
|
18% |
| 8/10 | 7 |
|
9% |
| 7/10 | 1 |
|
1% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
1% |
94.87% Average
The raw data average (mean) for all the Rangitata Rafts Ltd valid reviews is 94.87% and is based on 78 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
33 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 78 valid reviews, the experience has 33 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 33 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 17 |
|
52% |
| 9/10 | 10 |
|
30% |
| 8/10 | 5 |
|
15% |
| 7/10 | 1 |
|
3% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
93.03% Average
The raw data average (mean) for all the Rangitata Rafts Ltd face-to-face reviews is 93.03% and is based on 33 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
95.68%
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 |
|---|---|---|---|
| Liam Elferins | 9/10 | 3387 days | 100% |
| Marjolen Klomphaler | 10/10 | 3410 days | 98% |
| Sabrina Kulikar | 10/10 | 3447 days | 94% |
| sanneke tangel | 8/10 | 3804 days | 46% |
| Maria Schober | 8/10 | 4105 days | 8% |
| kevin george | 10/10 | 4574 days | 39% |
| Stu Murray | 10/10 | 4819 days | 39% |
| Fabian and Teresa | 10/10 | 4840 days | 39% |
| John | 9/10 | 4902 days | 38% |
| roos wubben | 9/10 | 4925 days | 38% |
| wtyson | 1/10 | 5000 days | 0% |
| Chris Marsh | 10/10 | 5210 days | 39% |
| budge69 | 10/10 | 5213 days | 39% |
| CHOW | 10/10 | 5336 days | 39% |
| Marinathebraveone | 10/10 | 5550 days | 39% |
| louisemartensson | 10/10 | 5550 days | 39% |
| Becky Foley | 9/10 | 5564 days | 38% |
| NicoleM | 8/10 | 5578 days | 38% |
| Richie | 9/10 | 5578 days | 38% |
| chels144 | 10/10 | 5609 days | 39% |
| mandiholtz | 10/10 | 5640 days | 39% |
| Shanel | 10/10 | 5670 days | 39% |
| LouiseVicente | 10/10 | 5854 days | 39% |
| SteveMcPeace | 10/10 | 5884 days | 39% |
| Nicola | 10/10 | 5915 days | 39% |
| Frances Hay | 10/10 | 5942 days | 39% |
| David Roque | 10/10 | 5943 days | 39% |
| Claudia Wälti | 10/10 | 5943 days | 39% |
| grobster | 10/10 | 5943 days | 39% |
| shannahan | 9/10 | 5974 days | 38% |
| ChristinaO | 9/10 | 5974 days | 38% |
| marianne petersen | 10/10 | 5974 days | 39% |
| Becca | 10/10 | 5974 days | 39% |
| Harry Gates | 10/10 | 5974 days | 39% |
| Shooter | 10/10 | 5974 days | 39% |
| godin | 10/10 | 6005 days | 39% |
| Gareth Jones | 10/10 | 6005 days | 39% |
| Gina Swindells | 10/10 | 6016 days | 39% |
| Ric Lee | 10/10 | 6066 days | 39% |
| Louise Humphreys | 10/10 | 6066 days | 39% |
| racheldonn | 10/10 | 6066 days | 39% |
| Sharon Heimeier | 9/10 | 6096 days | 38% |
| AoamC | 9/10 | 6251 days | 38% |
| Nicola | 10/10 | 6252 days | 39% |
| Paul | 10/10 | 6252 days | 39% |
| Neal | 10/10 | 6252 days | 39% |
| Helen Josten | 10/10 | 6259 days | 39% |
| Birgitte Weitemeyer | 10/10 | 6264 days | 39% |
| Greg18 | 8/10 | 6280 days | 38% |
| RobC1 | 9/10 | 6284 days | 38% |
| RichardB1 | 10/10 | 6284 days | 39% |
| JoT | 10/10 | 6284 days | 39% |
| RobH | 10/10 | 6285 days | 39% |
| Steve Sayers | 10/10 | 6286 days | 39% |
| mash | 10/10 | 6295 days | 39% |
| renanf | 10/10 | 6300 days | 39% |
| Bronte Koop | 10/10 | 6305 days | 39% |
| Kasumi | 10/10 | 6308 days | 39% |
| De Kievit | 8/10 | 6317 days | 38% |
| Paul Moisy | 10/10 | 6319 days | 39% |
| Andrew | 9/10 | 6325 days | 38% |
| BenD | 7/10 | 6339 days | 35% |
| Julia Klingberg | 10/10 | 6353 days | 39% |
| Chris Hertz | 10/10 | 6367 days | 39% |
| jon c | 10/10 | 6370 days | 39% |
| Sue Stevens | 10/10 | 6395 days | 39% |
| Dal Piggott | 10/10 | 6414 days | 39% |
| Sam Prior | 10/10 | 6464 days | 39% |
| purplekat99 | 10/10 | 6614 days | 39% |
| Renske Tehurne | 9/10 | 6640 days | 38% |
| Janne | 10/10 | 6653 days | 39% |
| John | 8/10 | 6663 days | 38% |
| Matt Walker | 10/10 | 6663 days | 39% |
| Sandra Gustafson | 10/10 | 6691 days | 39% |
| Brynn | 9/10 | 6935 days | 38% |
| David | 9/10 | 6985 days | 38% |
| NeilYeoman | 10/10 | 6986 days | 39% |
| Deirdre | 8/10 | 7027 days | 38% |
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 Rangitata Rafts Ltd experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.89% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 87 days. However the Rangitata Rafts Ltd 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 Rangitata Rafts Ltd experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.85% |
| 198 | -2.86% |
| 199 | -2.88% |
| 200 | -2.89% |
| 201 | -2.90% |
| 202 | -2.92% |
| 203 | -2.93% |
| … | … |
Balancing Adjustment
0.66% 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
93%
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.