Kia ora, 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
91.03%
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 | 3114 days | 100% |
| Julian Kihnle | 10/10 | 3232 days | 90% |
| Tom | 10/10 | 3479 days | 70% |
| Carly Biedul | 8/10 | 3516 days | 65% |
| Rhydian Templer | 10/10 | 3548 days | 64% |
| Sian Templer | 9/10 | 3548 days | 63% |
| Jade Templer | 10/10 | 3548 days | 64% |
| Jolien | 9/10 | 3558 days | 62% |
| Rebecca Holmes | 9/10 | 3559 days | 62% |
| Marc Sanivan | 7/10 | 3560 days | 58% |
| Nick Lancy | 9/10 | 3843 days | 39% |
| Stephanie Pope | 9/10 | 3860 days | 37% |
| Mia Gaynor | 10/10 | 3866 days | 37% |
| Alexis Leneveu | 8/10 | 4276 days | 3% |
| Fanny DeBon | 8/10 | 4298 days | 1% |
| Antoine Vernay | 6/10 | 4305 days | 0% |
| Hadar | 1/10 | 4579 days | 12% |
| Juliane | 8/10 | 4587 days | 36% |
| Lopez Anandine | 9/10 | 4592 days | 37% |
| Thomas Zilio | 9/10 | 4592 days | 37% |
| Gilad Itzkovitz | 6/10 | 4623 days | 31% |
| Alex | 10/10 | 4634 days | 37% |
| Evyatar Karni | 10/10 | 4637 days | 37% |
| Pete Wilson | 4/10 | 4926 days | 22% |
| Michal | 10/10 | 4944 days | 37% |
| Armand Poulain | 8/10 | 4946 days | 36% |
| Colin and Raewyn Newton | 8/10 | 4954 days | 36% |
| Tobias Sowade | 8/10 | 4968 days | 36% |
| Jessica Tilly | 8/10 | 5280 days | 36% |
| Alan Brady | 10/10 | 5302 days | 37% |
| Tinne Cis | 10/10 | 5302 days | 37% |
| Fabian Germar | 9/10 | 5310 days | 37% |
| Robert & Bridget Holden | 10/10 | 5314 days | 37% |
| S & J McDonald | 8/10 | 5315 days | 36% |
| John & Ray Calder | 8/10 | 5317 days | 36% |
| Katrawa | 9/10 | 5327 days | 37% |
| Anna Bret | 9/10 | 5405 days | 37% |
| Jaime Castells | 10/10 | 5405 days | 37% |
| Alita Smith | 9/10 | 5643 days | 37% |
| David Brown | 10/10 | 5644 days | 37% |
| R Tearle | 9/10 | 5649 days | 37% |
| Jorge Martinez Gacio | 9/10 | 5651 days | 37% |
| Phil Smith | 10/10 | 5655 days | 37% |
| Marquardt and Bernd | 10/10 | 5657 days | 37% |
| David and Karen | 9/10 | 5663 days | 37% |
| Richard Broughton | 10/10 | 5665 days | 37% |
| Susan Herd | 9/10 | 5666 days | 37% |
| Jol Balder | 8/10 | 5687 days | 36% |
| Amanda Craig | 10/10 | 5693 days | 37% |
| Dr Dorthe Bossow | 10/10 | 5695 days | 37% |
| JudyandAndre | 10/10 | 5730 days | 37% |
| Monica Askew | 10/10 | 5953 days | 37% |
| Darrell & Michelle Lamb | 9/10 | 5953 days | 37% |
| Kevin & Chris | 10/10 | 5969 days | 37% |
| Ian Tainsh | 10/10 | 6018 days | 37% |
| Einar | 9/10 | 6024 days | 37% |
| Angela | 7/10 | 6037 days | 34% |
| Wielink | 9/10 | 6044 days | 37% |
| Lynette Sal | 10/10 | 6080 days | 37% |
| Bill Nash | 9/10 | 6130 days | 37% |
| Lindsay Brown | 10/10 | 6136 days | 37% |
| Sena | 8/10 | 6136 days | 36% |
| X Vogel | 10/10 | 6136 days | 37% |
| Peter and Dianne McKinnon | 10/10 | 6149 days | 37% |
| SophieC | 9/10 | 6365 days | 37% |
| Wight | 10/10 | 6368 days | 37% |
| Viktoria Stoffel | 9/10 | 6377 days | 37% |
| Joel | 9/10 | 6390 days | 37% |
| Dianne | 8/10 | 6479 days | 36% |
| Rebekka | 10/10 | 6497 days | 37% |
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
0.87% 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.