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 Hole in the Rock Cruise.
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.
Hole in the Rock Cruise
Valid Reviews
114 Valid Reviews
The Hole in the Rock Cruise experience has a total of 115 reviews. There are 114 valid reviews that are included when calculating the ranking score and 1 invalid review 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 114 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 21 |
|
18% |
| 9/10 | 28 |
|
25% |
| 8/10 | 39 |
|
34% |
| 7/10 | 16 |
|
14% |
| 6/10 | 5 |
|
4% |
| 5/10 | 2 |
|
2% |
| 4/10 | 2 |
|
2% |
| 3/10 | 0 |
|
0% |
| 2/10 | 1 |
|
1% |
| 1/10 | 0 |
|
0% |
82.11% Average
The raw data average (mean) for all the Hole in the Rock Cruise valid reviews is 82.11% and is based on 114 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
109 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 114 valid reviews, the experience has 109 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 109 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 20 |
|
18% |
| 9/10 | 27 |
|
25% |
| 8/10 | 38 |
|
35% |
| 7/10 | 15 |
|
14% |
| 6/10 | 4 |
|
4% |
| 5/10 | 2 |
|
2% |
| 4/10 | 2 |
|
2% |
| 3/10 | 0 |
|
0% |
| 2/10 | 1 |
|
1% |
| 1/10 | 0 |
|
0% |
82.20% Average
The raw data average (mean) for all the Hole in the Rock Cruise face-to-face reviews is 82.20% and is based on 109 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
83.11%
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 |
|---|---|---|---|
| Alexandra Luerner | 10/10 | 3301 days | 100% |
| Magali Schwantke | 10/10 | 3559 days | 76% |
| Hana Rachfalik | 9/10 | 3567 days | 74% |
| Liam Bates | 10/10 | 3578 days | 74% |
| Rahel Baufeld | 8/10 | 3584 days | 72% |
| Lea Behnem | 8/10 | 3588 days | 72% |
| Marlene Goecke | 9/10 | 3595 days | 72% |
| Felix Sternke | 7/10 | 3606 days | 67% |
| Timon Streicher | 10/10 | 3621 days | 70% |
| Suzanne Vermeulen | 7/10 | 3727 days | 56% |
| Kristina Farkas | 10/10 | 3957 days | 39% |
| Martha Taatz | 10/10 | 3976 days | 37% |
| Sibylle and Nadine | 8/10 | 4023 days | 32% |
| Hadler | 9/10 | 4308 days | 6% |
| Christine Helleiner | 10/10 | 4308 days | 6% |
| Ian Garner | 10/10 | 4320 days | 5% |
| Dieter Hirsch | 8/10 | 4372 days | 0% |
| Ken S | 10/10 | 4397 days | 47% |
| Katrina Gamby | 9/10 | 4684 days | 47% |
| Peter Moederer | 8/10 | 4689 days | 46% |
| Dick Kooij | 8/10 | 4744 days | 46% |
| Tony Hines | 8/10 | 4748 days | 46% |
| Hans | 8/10 | 4752 days | 46% |
| Urs Zuercher | 9/10 | 4767 days | 47% |
| Judy | 9/10 | 4771 days | 47% |
| Stevie | 8/10 | 4774 days | 46% |
| Thys | 8/10 | 4774 days | 46% |
| Adrian Weidell | 7/10 | 4967 days | 44% |
| Peter Kent | 10/10 | 5024 days | 47% |
| Helmut Schmid | 9/10 | 5031 days | 47% |
| V deLeeuw | 9/10 | 5033 days | 47% |
| Roy Barton | 9/10 | 5034 days | 47% |
| M H Hansen | 8/10 | 5049 days | 46% |
| Sabine | 9/10 | 5049 days | 47% |
| A Sorg | 10/10 | 5058 days | 47% |
| Leander Siegert | 8/10 | 5064 days | 46% |
| John & Myra Sloan | 9/10 | 5137 days | 47% |
| Andy Lever | 9/10 | 5143 days | 47% |
| Marianne Wheatley | 8/10 | 5391 days | 46% |
| Aimee Pollett | 9/10 | 5393 days | 47% |
| Tina Baun | 8/10 | 5395 days | 46% |
| Julia Hofstetter | 6/10 | 5396 days | 40% |
| Scheauwen | 4/10 | 5401 days | 30% |
| Shirley | 8/10 | 5401 days | 46% |
| Henrik Mundbuerg | 10/10 | 5407 days | 47% |
| Mike and Sue Clark | 2/10 | 5409 days | 21% |
| Dave and Emma | 7/10 | 5419 days | 44% |
| Rosey834 | 8/10 | 5493 days | 46% |
| David | 7/10 | 5701 days | 44% |
| kempt | 6/10 | 5707 days | 40% |
| Russ Turner | 9/10 | 5754 days | 47% |
| Remro | 8/10 | 5756 days | 46% |
| Rob & Anne | 9/10 | 5761 days | 47% |
| Pam Know | 8/10 | 5763 days | 46% |
| Gunda G | 10/10 | 5776 days | 47% |
| Denecke Thorsten | 8/10 | 5777 days | 46% |
| Jakob Pedersen | 9/10 | 5778 days | 47% |
| Lynn Tichauer | 7/10 | 5779 days | 44% |
| Malcolm Glad | 7/10 | 5781 days | 44% |
| Mathias Skov | 7/10 | 5782 days | 44% |
| Mick Thexton | 9/10 | 5791 days | 47% |
| Torsten Gehrke | 5/10 | 5813 days | 36% |
| Werner Swiss | 10/10 | 5818 days | 47% |
| gemmav | 8/10 | 5842 days | 46% |
| nadinef | 9/10 | 5850 days | 47% |
| Anne Ford | 8/10 | 5860 days | 46% |
| Lothar Riedmann | 7/10 | 5860 days | 44% |
| Sibylle Locher | 8/10 | 5866 days | 46% |
| Mike | 8/10 | 5870 days | 46% |
| godineau | 8/10 | 5984 days | 46% |
| katesh | 10/10 | 6057 days | 47% |
| CeesVanW | 9/10 | 6102 days | 47% |
| arthurwa | 10/10 | 6102 days | 47% |
| Jake1 | 7/10 | 6104 days | 44% |
| Peter Jackie | 9/10 | 6105 days | 47% |
| Gerd Hebbel | 8/10 | 6118 days | 46% |
| HeideS | 9/10 | 6121 days | 47% |
| Kate | 8/10 | 6125 days | 46% |
| Keith | 8/10 | 6126 days | 46% |
| ChristopherD | 9/10 | 6136 days | 47% |
| Green | 8/10 | 6142 days | 46% |
| Philip | 7/10 | 6151 days | 44% |
| Katy | 4/10 | 6152 days | 30% |
| Andrew | 8/10 | 6152 days | 46% |
| Nikolaj | 7/10 | 6152 days | 44% |
| KuntzGermany | 10/10 | 6157 days | 47% |
| Klalis | 8/10 | 6158 days | 46% |
| MartinD | 7/10 | 6160 days | 44% |
| Van Dam | 10/10 | 6164 days | 47% |
| Hans | 7/10 | 6174 days | 44% |
| Johann | 10/10 | 6178 days | 47% |
| Lynne | 9/10 | 6215 days | 47% |
| Heidi | 8/10 | 6217 days | 46% |
| Liz | 8/10 | 6241 days | 46% |
| Louise | 8/10 | 6266 days | 46% |
| Rosseel | 8/10 | 6268 days | 46% |
| teamaustria | 6/10 | 6291 days | 40% |
| Dave | 5/10 | 6292 days | 36% |
| Rebecca Smith | 9/10 | 6317 days | 47% |
| Daniela | 8/10 | 6481 days | 46% |
| Hoetnagels | 6/10 | 6485 days | 40% |
| Leo | 9/10 | 6494 days | 47% |
| Amanda | 6/10 | 6500 days | 40% |
| Sally and David Wallis | 10/10 | 6502 days | 47% |
| Roger & Margaret | 8/10 | 6516 days | 46% |
| Meiki | 9/10 | 6549 days | 47% |
| Dave | 8/10 | 6832 days | 46% |
| Beth | 10/10 | 6839 days | 47% |
| Frederik | 9/10 | 6856 days | 47% |
| Lucy | 7/10 | 6865 days | 44% |
| Jasper | 8/10 | 6867 days | 46% |
| Fiona | 8/10 | 6878 days | 46% |
| Gordon | 9/10 | 6879 days | 47% |
| Harrison | 7/10 | 6880 days | 44% |
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 Hole in the Rock Cruise experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.06% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 days. However the Hole in the Rock Cruise 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 Hole in the Rock Cruise experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.00% |
| 198 | -4.02% |
| 199 | -4.04% |
| 200 | -4.06% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
Balancing Adjustment
3.27% 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
82%
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.