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 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
95.31%
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 | 2784 days | 100% |
| Marjolen Klomphaler | 10/10 | 2807 days | 100% |
| Sabrina Kulikar | 10/10 | 2844 days | 97% |
| sanneke tangel | 8/10 | 3201 days | 72% |
| Maria Schober | 8/10 | 3502 days | 53% |
| kevin george | 10/10 | 3971 days | 23% |
| Stu Murray | 10/10 | 4216 days | 7% |
| Fabian and Teresa | 10/10 | 4237 days | 6% |
| John | 9/10 | 4299 days | 1% |
| roos wubben | 9/10 | 4322 days | 0% |
| wtyson | 1/10 | 4397 days | 10% |
| Chris Marsh | 10/10 | 4607 days | 30% |
| budge69 | 10/10 | 4610 days | 30% |
| CHOW | 10/10 | 4733 days | 30% |
| Marinathebraveone | 10/10 | 4947 days | 30% |
| louisemartensson | 10/10 | 4947 days | 30% |
| Becky Foley | 9/10 | 4961 days | 29% |
| NicoleM | 8/10 | 4975 days | 29% |
| Richie | 9/10 | 4975 days | 29% |
| chels144 | 10/10 | 5006 days | 30% |
| mandiholtz | 10/10 | 5037 days | 30% |
| Shanel | 10/10 | 5067 days | 30% |
| LouiseVicente | 10/10 | 5251 days | 30% |
| SteveMcPeace | 10/10 | 5281 days | 30% |
| Nicola | 10/10 | 5312 days | 30% |
| Frances Hay | 10/10 | 5339 days | 30% |
| David Roque | 10/10 | 5340 days | 30% |
| Claudia Wälti | 10/10 | 5340 days | 30% |
| grobster | 10/10 | 5340 days | 30% |
| shannahan | 9/10 | 5371 days | 29% |
| ChristinaO | 9/10 | 5371 days | 29% |
| marianne petersen | 10/10 | 5371 days | 30% |
| Becca | 10/10 | 5371 days | 30% |
| Harry Gates | 10/10 | 5371 days | 30% |
| Shooter | 10/10 | 5371 days | 30% |
| godin | 10/10 | 5402 days | 30% |
| Gareth Jones | 10/10 | 5402 days | 30% |
| Gina Swindells | 10/10 | 5413 days | 30% |
| Ric Lee | 10/10 | 5463 days | 30% |
| Louise Humphreys | 10/10 | 5463 days | 30% |
| racheldonn | 10/10 | 5463 days | 30% |
| Sharon Heimeier | 9/10 | 5493 days | 29% |
| AoamC | 9/10 | 5648 days | 29% |
| Nicola | 10/10 | 5649 days | 30% |
| Paul | 10/10 | 5649 days | 30% |
| Neal | 10/10 | 5649 days | 30% |
| Helen Josten | 10/10 | 5657 days | 30% |
| Birgitte Weitemeyer | 10/10 | 5661 days | 30% |
| Greg18 | 8/10 | 5677 days | 29% |
| RobC1 | 9/10 | 5681 days | 29% |
| RichardB1 | 10/10 | 5681 days | 30% |
| JoT | 10/10 | 5681 days | 30% |
| RobH | 10/10 | 5682 days | 30% |
| Steve Sayers | 10/10 | 5683 days | 30% |
| mash | 10/10 | 5692 days | 30% |
| renanf | 10/10 | 5697 days | 30% |
| Bronte Koop | 10/10 | 5703 days | 30% |
| Kasumi | 10/10 | 5705 days | 30% |
| De Kievit | 8/10 | 5714 days | 29% |
| Paul Moisy | 10/10 | 5716 days | 30% |
| Andrew | 9/10 | 5723 days | 29% |
| BenD | 7/10 | 5736 days | 27% |
| Julia Klingberg | 10/10 | 5751 days | 30% |
| Chris Hertz | 10/10 | 5765 days | 30% |
| jon c | 10/10 | 5767 days | 30% |
| Sue Stevens | 10/10 | 5792 days | 30% |
| Dal Piggott | 10/10 | 5812 days | 30% |
| Sam Prior | 10/10 | 5862 days | 30% |
| purplekat99 | 10/10 | 6011 days | 30% |
| Renske Tehurne | 9/10 | 6037 days | 29% |
| Janne | 10/10 | 6050 days | 30% |
| John | 8/10 | 6060 days | 29% |
| Matt Walker | 10/10 | 6060 days | 30% |
| Sandra Gustafson | 10/10 | 6088 days | 30% |
| Brynn | 9/10 | 6332 days | 29% |
| David | 9/10 | 6382 days | 29% |
| NeilYeoman | 10/10 | 6383 days | 30% |
| Deirdre | 8/10 | 6424 days | 29% |
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
-2.94% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 78 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 | -2.89% |
| 198 | -2.91% |
| 199 | -2.92% |
| 200 | -2.94% |
| 201 | -2.95% |
| 202 | -2.97% |
| 203 | -2.98% |
| … | … |
Balancing Adjustment
0.71% 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.