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 Milford Track.
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.
Milford Track
Valid Reviews
70 Valid Reviews
The Milford Track experience has a total of 72 reviews. There are 70 valid reviews that are included when calculating the ranking score and 2 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 70 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 29 |
|
41% |
| 9/10 | 22 |
|
31% |
| 8/10 | 13 |
|
19% |
| 7/10 | 2 |
|
3% |
| 6/10 | 2 |
|
3% |
| 5/10 | 0 |
|
0% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
1% |
89.00% Average
The raw data average (mean) for all the Milford Track valid reviews is 89.00% and is based on 70 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
66 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 70 valid reviews, the experience has 66 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 66 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 26 |
|
39% |
| 9/10 | 22 |
|
33% |
| 8/10 | 12 |
|
18% |
| 7/10 | 2 |
|
3% |
| 6/10 | 2 |
|
3% |
| 5/10 | 0 |
|
0% |
| 4/10 | 1 |
|
2% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
2% |
88.64% Average
The raw data average (mean) for all the Milford Track face-to-face reviews is 88.64% and is based on 66 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
91.18%
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 |
|---|---|---|---|
| Ben H | 10/10 | 2457 days | 100% |
| Julian Kihnle | 10/10 | 2575 days | 94% |
| Tom | 10/10 | 2822 days | 80% |
| Carly Biedul | 8/10 | 2859 days | 77% |
| Rhydian Templer | 10/10 | 2891 days | 77% |
| Sian Templer | 9/10 | 2891 days | 76% |
| Jade Templer | 10/10 | 2891 days | 77% |
| Jolien | 9/10 | 2901 days | 75% |
| Rebecca Holmes | 9/10 | 2902 days | 75% |
| Marc Sanivan | 7/10 | 2903 days | 70% |
| Nick Lancy | 9/10 | 3186 days | 60% |
| Stephanie Pope | 9/10 | 3203 days | 59% |
| Mia Gaynor | 10/10 | 3209 days | 59% |
| Alexis Leneveu | 8/10 | 3619 days | 37% |
| Fanny DeBon | 8/10 | 3641 days | 35% |
| Antoine Vernay | 6/10 | 3648 days | 30% |
| Hadar | 1/10 | 3922 days | 6% |
| Juliane | 8/10 | 3930 days | 20% |
| Lopez Anandine | 9/10 | 3935 days | 20% |
| Thomas Zilio | 9/10 | 3935 days | 20% |
| Gilad Itzkovitz | 6/10 | 3966 days | 16% |
| Alex | 10/10 | 3977 days | 18% |
| Evyatar Karni | 10/10 | 3980 days | 18% |
| Pete Wilson | 4/10 | 4269 days | 0% |
| Michal | 10/10 | 4287 days | 1% |
| Armand Poulain | 8/10 | 4289 days | 1% |
| Colin and Raewyn Newton | 8/10 | 4297 days | 1% |
| Tobias Sowade | 8/10 | 4311 days | 0% |
| Jessica Tilly | 8/10 | 4623 days | 23% |
| Alan Brady | 10/10 | 4645 days | 24% |
| Tinne Cis | 10/10 | 4645 days | 24% |
| Fabian Germar | 9/10 | 4653 days | 24% |
| Robert & Bridget Holden | 10/10 | 4657 days | 24% |
| S & J McDonald | 8/10 | 4658 days | 23% |
| John & Ray Calder | 8/10 | 4660 days | 23% |
| Katrawa | 9/10 | 4670 days | 24% |
| Anna Bret | 9/10 | 4748 days | 24% |
| Jaime Castells | 10/10 | 4748 days | 24% |
| Alita Smith | 9/10 | 4986 days | 24% |
| David Brown | 10/10 | 4987 days | 24% |
| R Tearle | 9/10 | 4992 days | 24% |
| Jorge Martinez Gacio | 9/10 | 4994 days | 24% |
| Phil Smith | 10/10 | 4998 days | 24% |
| Marquardt and Bernd | 10/10 | 5000 days | 24% |
| David and Karen | 9/10 | 5006 days | 24% |
| Richard Broughton | 10/10 | 5008 days | 24% |
| Susan Herd | 9/10 | 5009 days | 24% |
| Jol Balder | 8/10 | 5030 days | 23% |
| Amanda Craig | 10/10 | 5036 days | 24% |
| Dr Dorthe Bossow | 10/10 | 5038 days | 24% |
| JudyandAndre | 10/10 | 5073 days | 24% |
| Monica Askew | 10/10 | 5296 days | 24% |
| Darrell & Michelle Lamb | 9/10 | 5296 days | 24% |
| Kevin & Chris | 10/10 | 5312 days | 24% |
| Ian Tainsh | 10/10 | 5361 days | 24% |
| Einar | 9/10 | 5367 days | 24% |
| Angela | 7/10 | 5380 days | 22% |
| Wielink | 9/10 | 5387 days | 24% |
| Lynette Sal | 10/10 | 5423 days | 24% |
| Bill Nash | 9/10 | 5473 days | 24% |
| Lindsay Brown | 10/10 | 5479 days | 24% |
| Sena | 8/10 | 5479 days | 23% |
| X Vogel | 10/10 | 5479 days | 24% |
| Peter and Dianne McKinnon | 10/10 | 5492 days | 24% |
| SophieC | 9/10 | 5708 days | 24% |
| Wight | 10/10 | 5711 days | 24% |
| Viktoria Stoffel | 9/10 | 5720 days | 24% |
| Joel | 9/10 | 5733 days | 24% |
| Dianne | 8/10 | 5822 days | 23% |
| Rebekka | 10/10 | 5840 days | 24% |
Adjustments
No Adjustment
Several adjustments to the weighted average may be added to improve relevancy and credibility. Milford Track does not meet the criteria for any of these adjustments to apply.
Balancing Adjustment
0.85% 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
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.