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 Nelson Lakes National Park.
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.
Nelson Lakes National Park
Valid Reviews
37 Valid Reviews
The Nelson Lakes National Park experience has a total of 37 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 37 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 7 |
|
19% |
| 9/10 | 11 |
|
30% |
| 8/10 | 10 |
|
27% |
| 7/10 | 6 |
|
16% |
| 6/10 | 1 |
|
3% |
| 5/10 | 1 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
3% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
82.43% Average
The raw data average (mean) for all the Nelson Lakes National Park valid reviews is 82.43% and is based on 37 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
36 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 37 valid reviews, the experience has 36 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 36 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 7 |
|
19% |
| 9/10 | 11 |
|
31% |
| 8/10 | 10 |
|
28% |
| 7/10 | 6 |
|
17% |
| 6/10 | 1 |
|
3% |
| 5/10 | 1 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
83.89% Average
The raw data average (mean) for all the Nelson Lakes National Park face-to-face reviews is 83.89% and is based on 36 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
66.56%
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 |
|---|---|---|---|
| Ross | 3/10 | 1145 days | 100% |
| Sophie Kalnymsky | 9/10 | 3206 days | 12% |
| Jonathan Brunetti | 8/10 | 3256 days | 12% |
| Sophie Arru | 8/10 | 3262 days | 12% |
| Philipp Richter | 8/10 | 3312 days | 11% |
| Simon Quass | 10/10 | 3313 days | 11% |
| Esther Itier | 7/10 | 3545 days | 8% |
| Maria Schober | 9/10 | 3567 days | 8% |
| Sibylle and Nadine | 8/10 | 3632 days | 7% |
| Fanny DeBon | 6/10 | 3639 days | 6% |
| Bartlomiej Berger | 7/10 | 3646 days | 7% |
| Florian Klein | 9/10 | 3868 days | 5% |
| Sanne Meijer | 8/10 | 3899 days | 4% |
| Adam | 8/10 | 3908 days | 4% |
| Anne Haenchen | 9/10 | 3916 days | 4% |
| Kathi | 9/10 | 3916 days | 4% |
| Hadar | 5/10 | 3920 days | 3% |
| Leon Courtney | 7/10 | 3923 days | 4% |
| Kristyna | 10/10 | 3932 days | 4% |
| Wayne Schist | 8/10 | 3939 days | 4% |
| David Krasner | 10/10 | 3941 days | 4% |
| Matthias Freiling | 10/10 | 3942 days | 4% |
| Max Tetzlaff | 9/10 | 3942 days | 4% |
| Johannes | 7/10 | 3943 days | 4% |
| Alexis Redor | 7/10 | 3947 days | 4% |
| Ngaire Davies | 8/10 | 3958 days | 4% |
| Paul Davies | 8/10 | 3958 days | 4% |
| Mayan Goddat | 9/10 | 3964 days | 4% |
| Daniel Naveh | 9/10 | 3964 days | 4% |
| Jean Batiste Le meur | 9/10 | 3964 days | 4% |
| Clara Hayes | 7/10 | 3970 days | 3% |
| Michael Rohn | 10/10 | 3972 days | 4% |
| Evian Bolz | 10/10 | 3973 days | 4% |
| Giles Leonard | 8/10 | 4263 days | 0% |
| Sian Bolderson | 9/10 | 4264 days | 0% |
| Stu Murray | 10/10 | 4281 days | 0% |
| Gerard Berote | 9/10 | 4282 days | 0% |
Adjustments
No Adjustment
Several adjustments to the weighted average may be added to improve relevancy and credibility. Nelson Lakes National Park does not meet the criteria for any of these adjustments to apply.
Balancing Adjustment
9.13% 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 folk 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
76%
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.