G'day, 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
83.09%
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 | 3519 days | 100% |
| Magali Schwantke | 10/10 | 3777 days | 64% |
| Hana Rachfalik | 9/10 | 3785 days | 62% |
| Liam Bates | 10/10 | 3796 days | 62% |
| Rahel Baufeld | 8/10 | 3802 days | 59% |
| Lea Behnem | 8/10 | 3806 days | 59% |
| Marlene Goecke | 9/10 | 3813 days | 59% |
| Felix Sternke | 7/10 | 3824 days | 53% |
| Timon Streicher | 10/10 | 3839 days | 56% |
| Suzanne Vermeulen | 7/10 | 3945 days | 37% |
| Kristina Farkas | 10/10 | 4175 days | 9% |
| Martha Taatz | 10/10 | 4194 days | 7% |
| Sibylle and Nadine | 8/10 | 4241 days | 0% |
| Hadler | 9/10 | 4526 days | 51% |
| Christine Helleiner | 10/10 | 4526 days | 52% |
| Ian Garner | 10/10 | 4538 days | 52% |
| Dieter Hirsch | 8/10 | 4590 days | 50% |
| Ken S | 10/10 | 4615 days | 52% |
| Katrina Gamby | 9/10 | 4902 days | 51% |
| Peter Moederer | 8/10 | 4907 days | 50% |
| Dick Kooij | 8/10 | 4962 days | 50% |
| Tony Hines | 8/10 | 4966 days | 50% |
| Hans | 8/10 | 4970 days | 50% |
| Urs Zuercher | 9/10 | 4985 days | 51% |
| Judy | 9/10 | 4989 days | 51% |
| Stevie | 8/10 | 4992 days | 50% |
| Thys | 8/10 | 4992 days | 50% |
| Adrian Weidell | 7/10 | 5185 days | 47% |
| Peter Kent | 10/10 | 5242 days | 52% |
| Helmut Schmid | 9/10 | 5249 days | 51% |
| V deLeeuw | 9/10 | 5251 days | 51% |
| Roy Barton | 9/10 | 5252 days | 51% |
| M H Hansen | 8/10 | 5267 days | 50% |
| Sabine | 9/10 | 5267 days | 51% |
| A Sorg | 10/10 | 5276 days | 52% |
| Leander Siegert | 8/10 | 5282 days | 50% |
| John & Myra Sloan | 9/10 | 5355 days | 51% |
| Andy Lever | 9/10 | 5361 days | 51% |
| Marianne Wheatley | 8/10 | 5609 days | 50% |
| Aimee Pollett | 9/10 | 5611 days | 51% |
| Tina Baun | 8/10 | 5613 days | 50% |
| Julia Hofstetter | 6/10 | 5614 days | 42% |
| Scheauwen | 4/10 | 5619 days | 27% |
| Shirley | 8/10 | 5619 days | 50% |
| Henrik Mundbuerg | 10/10 | 5625 days | 52% |
| Mike and Sue Clark | 2/10 | 5627 days | 13% |
| Dave and Emma | 7/10 | 5637 days | 47% |
| Rosey834 | 8/10 | 5711 days | 50% |
| David | 7/10 | 5919 days | 47% |
| kempt | 6/10 | 5925 days | 42% |
| Russ Turner | 9/10 | 5972 days | 51% |
| Remro | 8/10 | 5974 days | 50% |
| Rob & Anne | 9/10 | 5979 days | 51% |
| Pam Know | 8/10 | 5981 days | 50% |
| Gunda G | 10/10 | 5994 days | 52% |
| Denecke Thorsten | 8/10 | 5995 days | 50% |
| Jakob Pedersen | 9/10 | 5996 days | 51% |
| Lynn Tichauer | 7/10 | 5997 days | 47% |
| Malcolm Glad | 7/10 | 5999 days | 47% |
| Mathias Skov | 7/10 | 6000 days | 47% |
| Mick Thexton | 9/10 | 6009 days | 51% |
| Torsten Gehrke | 5/10 | 6031 days | 35% |
| Werner Swiss | 10/10 | 6036 days | 52% |
| gemmav | 8/10 | 6060 days | 50% |
| nadinef | 9/10 | 6068 days | 51% |
| Anne Ford | 8/10 | 6078 days | 50% |
| Lothar Riedmann | 7/10 | 6078 days | 47% |
| Sibylle Locher | 8/10 | 6084 days | 50% |
| Mike | 8/10 | 6088 days | 50% |
| godineau | 8/10 | 6202 days | 50% |
| katesh | 10/10 | 6275 days | 52% |
| CeesVanW | 9/10 | 6320 days | 51% |
| arthurwa | 10/10 | 6320 days | 52% |
| Jake1 | 7/10 | 6322 days | 47% |
| Peter Jackie | 9/10 | 6323 days | 51% |
| Gerd Hebbel | 8/10 | 6336 days | 50% |
| HeideS | 9/10 | 6339 days | 51% |
| Kate | 8/10 | 6343 days | 50% |
| Keith | 8/10 | 6344 days | 50% |
| ChristopherD | 9/10 | 6354 days | 51% |
| Green | 8/10 | 6360 days | 50% |
| Philip | 7/10 | 6369 days | 47% |
| Katy | 4/10 | 6370 days | 27% |
| Andrew | 8/10 | 6370 days | 50% |
| Nikolaj | 7/10 | 6370 days | 47% |
| KuntzGermany | 10/10 | 6375 days | 52% |
| Klalis | 8/10 | 6376 days | 50% |
| MartinD | 7/10 | 6378 days | 47% |
| Van Dam | 10/10 | 6382 days | 52% |
| Hans | 7/10 | 6392 days | 47% |
| Johann | 10/10 | 6396 days | 52% |
| Lynne | 9/10 | 6433 days | 51% |
| Heidi | 8/10 | 6435 days | 50% |
| Liz | 8/10 | 6459 days | 50% |
| Louise | 8/10 | 6484 days | 50% |
| Rosseel | 8/10 | 6486 days | 50% |
| teamaustria | 6/10 | 6509 days | 42% |
| Dave | 5/10 | 6510 days | 35% |
| Rebecca Smith | 9/10 | 6535 days | 51% |
| Daniela | 8/10 | 6699 days | 50% |
| Hoetnagels | 6/10 | 6703 days | 42% |
| Leo | 9/10 | 6712 days | 51% |
| Amanda | 6/10 | 6718 days | 42% |
| Sally and David Wallis | 10/10 | 6720 days | 52% |
| Roger & Margaret | 8/10 | 6734 days | 50% |
| Meiki | 9/10 | 6767 days | 51% |
| Dave | 8/10 | 7050 days | 50% |
| Beth | 10/10 | 7057 days | 52% |
| Frederik | 9/10 | 7074 days | 51% |
| Lucy | 7/10 | 7083 days | 47% |
| Jasper | 8/10 | 7085 days | 50% |
| Fiona | 8/10 | 7096 days | 50% |
| Gordon | 9/10 | 7097 days | 51% |
| Harrison | 7/10 | 7098 days | 47% |
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
-2.02% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 125 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 | -1.99% |
| 198 | -2.00% |
| 199 | -2.01% |
| 200 | -2.02% |
| 201 | -2.03% |
| 202 | -2.04% |
| 203 | -2.05% |
| … | … |
Balancing Adjustment
2.71% 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
84%
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.