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
95.34%
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 | 2833 days | 100% |
| Marjolen Klomphaler | 10/10 | 2856 days | 99% |
| Sabrina Kulikar | 10/10 | 2893 days | 97% |
| sanneke tangel | 8/10 | 3250 days | 72% |
| Maria Schober | 8/10 | 3551 days | 53% |
| kevin george | 10/10 | 4020 days | 23% |
| Stu Murray | 10/10 | 4265 days | 7% |
| Fabian and Teresa | 10/10 | 4286 days | 6% |
| John | 9/10 | 4348 days | 1% |
| roos wubben | 9/10 | 4371 days | 0% |
| wtyson | 1/10 | 4446 days | 13% |
| Chris Marsh | 10/10 | 4656 days | 33% |
| budge69 | 10/10 | 4659 days | 33% |
| CHOW | 10/10 | 4782 days | 33% |
| Marinathebraveone | 10/10 | 4996 days | 33% |
| louisemartensson | 10/10 | 4996 days | 33% |
| Becky Foley | 9/10 | 5010 days | 33% |
| NicoleM | 8/10 | 5024 days | 32% |
| Richie | 9/10 | 5024 days | 33% |
| chels144 | 10/10 | 5055 days | 33% |
| mandiholtz | 10/10 | 5086 days | 33% |
| Shanel | 10/10 | 5116 days | 33% |
| LouiseVicente | 10/10 | 5300 days | 33% |
| SteveMcPeace | 10/10 | 5330 days | 33% |
| Nicola | 10/10 | 5361 days | 33% |
| Frances Hay | 10/10 | 5388 days | 33% |
| David Roque | 10/10 | 5389 days | 33% |
| Claudia Wälti | 10/10 | 5389 days | 33% |
| grobster | 10/10 | 5389 days | 33% |
| shannahan | 9/10 | 5420 days | 33% |
| ChristinaO | 9/10 | 5420 days | 33% |
| marianne petersen | 10/10 | 5420 days | 33% |
| Becca | 10/10 | 5420 days | 33% |
| Harry Gates | 10/10 | 5420 days | 33% |
| Shooter | 10/10 | 5420 days | 33% |
| godin | 10/10 | 5451 days | 33% |
| Gareth Jones | 10/10 | 5451 days | 33% |
| Gina Swindells | 10/10 | 5462 days | 33% |
| Ric Lee | 10/10 | 5512 days | 33% |
| Louise Humphreys | 10/10 | 5512 days | 33% |
| racheldonn | 10/10 | 5512 days | 33% |
| Sharon Heimeier | 9/10 | 5542 days | 33% |
| AoamC | 9/10 | 5697 days | 33% |
| Nicola | 10/10 | 5698 days | 33% |
| Paul | 10/10 | 5698 days | 33% |
| Neal | 10/10 | 5698 days | 33% |
| Helen Josten | 10/10 | 5705 days | 33% |
| Birgitte Weitemeyer | 10/10 | 5710 days | 33% |
| Greg18 | 8/10 | 5726 days | 32% |
| RobC1 | 9/10 | 5730 days | 33% |
| RichardB1 | 10/10 | 5730 days | 33% |
| JoT | 10/10 | 5730 days | 33% |
| RobH | 10/10 | 5731 days | 33% |
| Steve Sayers | 10/10 | 5732 days | 33% |
| mash | 10/10 | 5740 days | 33% |
| renanf | 10/10 | 5745 days | 33% |
| Bronte Koop | 10/10 | 5751 days | 33% |
| Kasumi | 10/10 | 5754 days | 33% |
| De Kievit | 8/10 | 5763 days | 32% |
| Paul Moisy | 10/10 | 5765 days | 33% |
| Andrew | 9/10 | 5771 days | 33% |
| BenD | 7/10 | 5785 days | 31% |
| Julia Klingberg | 10/10 | 5799 days | 33% |
| Chris Hertz | 10/10 | 5813 days | 33% |
| jon c | 10/10 | 5816 days | 33% |
| Sue Stevens | 10/10 | 5840 days | 33% |
| Dal Piggott | 10/10 | 5860 days | 33% |
| Sam Prior | 10/10 | 5910 days | 33% |
| purplekat99 | 10/10 | 6060 days | 33% |
| Renske Tehurne | 9/10 | 6086 days | 33% |
| Janne | 10/10 | 6098 days | 33% |
| John | 8/10 | 6109 days | 32% |
| Matt Walker | 10/10 | 6109 days | 33% |
| Sandra Gustafson | 10/10 | 6137 days | 33% |
| Brynn | 9/10 | 6381 days | 33% |
| David | 9/10 | 6431 days | 33% |
| NeilYeoman | 10/10 | 6432 days | 33% |
| Deirdre | 8/10 | 6473 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
-3.89% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 49 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 | -3.84% |
| 198 | -3.86% |
| 199 | -3.87% |
| 200 | -3.89% |
| 201 | -3.91% |
| 202 | -3.93% |
| 203 | -3.95% |
| … | … |
Balancing Adjustment
0.81% 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
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.