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
95.28%
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 | 2848 days | 100% |
| Marjolen Klomphaler | 10/10 | 2871 days | 99% |
| Sabrina Kulikar | 10/10 | 2908 days | 97% |
| sanneke tangel | 8/10 | 3265 days | 72% |
| Maria Schober | 8/10 | 3566 days | 52% |
| kevin george | 10/10 | 4035 days | 22% |
| Stu Murray | 10/10 | 4280 days | 6% |
| Fabian and Teresa | 10/10 | 4301 days | 4% |
| John | 9/10 | 4363 days | 0% |
| roos wubben | 9/10 | 4386 days | 33% |
| wtyson | 1/10 | 4461 days | 13% |
| Chris Marsh | 10/10 | 4671 days | 33% |
| budge69 | 10/10 | 4674 days | 33% |
| CHOW | 10/10 | 4797 days | 33% |
| Marinathebraveone | 10/10 | 5011 days | 33% |
| louisemartensson | 10/10 | 5011 days | 33% |
| Becky Foley | 9/10 | 5025 days | 33% |
| NicoleM | 8/10 | 5039 days | 32% |
| Richie | 9/10 | 5039 days | 33% |
| chels144 | 10/10 | 5070 days | 33% |
| mandiholtz | 10/10 | 5101 days | 33% |
| Shanel | 10/10 | 5131 days | 33% |
| LouiseVicente | 10/10 | 5315 days | 33% |
| SteveMcPeace | 10/10 | 5345 days | 33% |
| Nicola | 10/10 | 5376 days | 33% |
| Frances Hay | 10/10 | 5403 days | 33% |
| David Roque | 10/10 | 5404 days | 33% |
| Claudia Wälti | 10/10 | 5404 days | 33% |
| grobster | 10/10 | 5404 days | 33% |
| shannahan | 9/10 | 5435 days | 33% |
| ChristinaO | 9/10 | 5435 days | 33% |
| marianne petersen | 10/10 | 5435 days | 33% |
| Becca | 10/10 | 5435 days | 33% |
| Harry Gates | 10/10 | 5435 days | 33% |
| Shooter | 10/10 | 5435 days | 33% |
| godin | 10/10 | 5466 days | 33% |
| Gareth Jones | 10/10 | 5466 days | 33% |
| Gina Swindells | 10/10 | 5477 days | 33% |
| Ric Lee | 10/10 | 5527 days | 33% |
| Louise Humphreys | 10/10 | 5527 days | 33% |
| racheldonn | 10/10 | 5527 days | 33% |
| Sharon Heimeier | 9/10 | 5557 days | 33% |
| AoamC | 9/10 | 5712 days | 33% |
| Nicola | 10/10 | 5713 days | 33% |
| Paul | 10/10 | 5713 days | 33% |
| Neal | 10/10 | 5713 days | 33% |
| Helen Josten | 10/10 | 5721 days | 33% |
| Birgitte Weitemeyer | 10/10 | 5725 days | 33% |
| Greg18 | 8/10 | 5741 days | 32% |
| RobC1 | 9/10 | 5745 days | 33% |
| RichardB1 | 10/10 | 5745 days | 33% |
| JoT | 10/10 | 5745 days | 33% |
| RobH | 10/10 | 5746 days | 33% |
| Steve Sayers | 10/10 | 5747 days | 33% |
| mash | 10/10 | 5756 days | 33% |
| renanf | 10/10 | 5761 days | 33% |
| Bronte Koop | 10/10 | 5767 days | 33% |
| Kasumi | 10/10 | 5769 days | 33% |
| De Kievit | 8/10 | 5778 days | 32% |
| Paul Moisy | 10/10 | 5780 days | 33% |
| Andrew | 9/10 | 5787 days | 33% |
| BenD | 7/10 | 5800 days | 31% |
| Julia Klingberg | 10/10 | 5815 days | 33% |
| Chris Hertz | 10/10 | 5829 days | 33% |
| jon c | 10/10 | 5831 days | 33% |
| Sue Stevens | 10/10 | 5856 days | 33% |
| Dal Piggott | 10/10 | 5876 days | 33% |
| Sam Prior | 10/10 | 5926 days | 33% |
| purplekat99 | 10/10 | 6075 days | 33% |
| Renske Tehurne | 9/10 | 6101 days | 33% |
| Janne | 10/10 | 6114 days | 33% |
| John | 8/10 | 6124 days | 32% |
| Matt Walker | 10/10 | 6124 days | 33% |
| Sandra Gustafson | 10/10 | 6152 days | 33% |
| Brynn | 9/10 | 6396 days | 33% |
| David | 9/10 | 6446 days | 33% |
| NeilYeoman | 10/10 | 6447 days | 33% |
| Deirdre | 8/10 | 6488 days | 32% |
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
-4.03% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 44 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 | -3.97% |
| 198 | -3.99% |
| 199 | -4.01% |
| 200 | -4.03% |
| 201 | -4.05% |
| 202 | -4.07% |
| 203 | -4.09% |
| … | … |
Balancing Adjustment
0.84% 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
92%
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.