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
83.02%
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 | 3569 days | 100% |
| Magali Schwantke | 10/10 | 3827 days | 64% |
| Hana Rachfalik | 9/10 | 3835 days | 63% |
| Liam Bates | 10/10 | 3846 days | 62% |
| Rahel Baufeld | 8/10 | 3852 days | 59% |
| Lea Behnem | 8/10 | 3856 days | 59% |
| Marlene Goecke | 9/10 | 3863 days | 59% |
| Felix Sternke | 7/10 | 3874 days | 53% |
| Timon Streicher | 10/10 | 3889 days | 56% |
| Suzanne Vermeulen | 7/10 | 3996 days | 37% |
| Kristina Farkas | 10/10 | 4225 days | 9% |
| Martha Taatz | 10/10 | 4244 days | 7% |
| Sibylle and Nadine | 8/10 | 4291 days | 0% |
| Hadler | 9/10 | 4576 days | 58% |
| Christine Helleiner | 10/10 | 4576 days | 59% |
| Ian Garner | 10/10 | 4588 days | 59% |
| Dieter Hirsch | 8/10 | 4640 days | 57% |
| Ken S | 10/10 | 4665 days | 59% |
| Katrina Gamby | 9/10 | 4952 days | 58% |
| Peter Moederer | 8/10 | 4957 days | 57% |
| Dick Kooij | 8/10 | 5012 days | 57% |
| Tony Hines | 8/10 | 5016 days | 57% |
| Hans | 8/10 | 5020 days | 57% |
| Urs Zuercher | 9/10 | 5035 days | 58% |
| Judy | 9/10 | 5039 days | 58% |
| Stevie | 8/10 | 5042 days | 57% |
| Thys | 8/10 | 5042 days | 57% |
| Adrian Weidell | 7/10 | 5235 days | 54% |
| Peter Kent | 10/10 | 5292 days | 59% |
| Helmut Schmid | 9/10 | 5299 days | 58% |
| V deLeeuw | 9/10 | 5301 days | 58% |
| Roy Barton | 9/10 | 5302 days | 58% |
| M H Hansen | 8/10 | 5317 days | 57% |
| Sabine | 9/10 | 5317 days | 58% |
| A Sorg | 10/10 | 5326 days | 59% |
| Leander Siegert | 8/10 | 5332 days | 57% |
| John & Myra Sloan | 9/10 | 5405 days | 58% |
| Andy Lever | 9/10 | 5411 days | 58% |
| Marianne Wheatley | 8/10 | 5659 days | 57% |
| Aimee Pollett | 9/10 | 5661 days | 58% |
| Tina Baun | 8/10 | 5663 days | 57% |
| Julia Hofstetter | 6/10 | 5664 days | 49% |
| Scheauwen | 4/10 | 5669 days | 34% |
| Shirley | 8/10 | 5669 days | 57% |
| Henrik Mundbuerg | 10/10 | 5675 days | 59% |
| Mike and Sue Clark | 2/10 | 5677 days | 20% |
| Dave and Emma | 7/10 | 5687 days | 54% |
| Rosey834 | 8/10 | 5761 days | 57% |
| David | 7/10 | 5969 days | 54% |
| kempt | 6/10 | 5975 days | 49% |
| Russ Turner | 9/10 | 6022 days | 58% |
| Remro | 8/10 | 6024 days | 57% |
| Rob & Anne | 9/10 | 6029 days | 58% |
| Pam Know | 8/10 | 6031 days | 57% |
| Gunda G | 10/10 | 6044 days | 59% |
| Denecke Thorsten | 8/10 | 6045 days | 57% |
| Jakob Pedersen | 9/10 | 6046 days | 58% |
| Lynn Tichauer | 7/10 | 6047 days | 54% |
| Malcolm Glad | 7/10 | 6049 days | 54% |
| Mathias Skov | 7/10 | 6050 days | 54% |
| Mick Thexton | 9/10 | 6059 days | 58% |
| Torsten Gehrke | 5/10 | 6081 days | 42% |
| Werner Swiss | 10/10 | 6086 days | 59% |
| gemmav | 8/10 | 6110 days | 57% |
| nadinef | 9/10 | 6118 days | 58% |
| Anne Ford | 8/10 | 6128 days | 57% |
| Lothar Riedmann | 7/10 | 6128 days | 54% |
| Sibylle Locher | 8/10 | 6134 days | 57% |
| Mike | 8/10 | 6138 days | 57% |
| godineau | 8/10 | 6252 days | 57% |
| katesh | 10/10 | 6325 days | 59% |
| CeesVanW | 9/10 | 6370 days | 58% |
| arthurwa | 10/10 | 6370 days | 59% |
| Jake1 | 7/10 | 6372 days | 54% |
| Peter Jackie | 9/10 | 6373 days | 58% |
| Gerd Hebbel | 8/10 | 6386 days | 57% |
| HeideS | 9/10 | 6389 days | 58% |
| Kate | 8/10 | 6393 days | 57% |
| Keith | 8/10 | 6394 days | 57% |
| ChristopherD | 9/10 | 6404 days | 58% |
| Green | 8/10 | 6410 days | 57% |
| Philip | 7/10 | 6419 days | 54% |
| Katy | 4/10 | 6420 days | 34% |
| Andrew | 8/10 | 6420 days | 57% |
| Nikolaj | 7/10 | 6421 days | 54% |
| KuntzGermany | 10/10 | 6425 days | 59% |
| Klalis | 8/10 | 6427 days | 57% |
| MartinD | 7/10 | 6428 days | 54% |
| Van Dam | 10/10 | 6432 days | 59% |
| Hans | 7/10 | 6442 days | 54% |
| Johann | 10/10 | 6446 days | 59% |
| Lynne | 9/10 | 6483 days | 58% |
| Heidi | 8/10 | 6485 days | 57% |
| Liz | 8/10 | 6509 days | 57% |
| Louise | 8/10 | 6534 days | 57% |
| Rosseel | 8/10 | 6536 days | 57% |
| teamaustria | 6/10 | 6559 days | 49% |
| Dave | 5/10 | 6560 days | 42% |
| Rebecca Smith | 9/10 | 6585 days | 58% |
| Daniela | 8/10 | 6749 days | 57% |
| Hoetnagels | 6/10 | 6753 days | 49% |
| Leo | 9/10 | 6762 days | 58% |
| Amanda | 6/10 | 6768 days | 49% |
| Sally and David Wallis | 10/10 | 6770 days | 59% |
| Roger & Margaret | 8/10 | 6784 days | 57% |
| Meiki | 9/10 | 6817 days | 58% |
| Dave | 8/10 | 7100 days | 57% |
| Beth | 10/10 | 7107 days | 59% |
| Frederik | 9/10 | 7124 days | 58% |
| Lucy | 7/10 | 7133 days | 54% |
| Jasper | 8/10 | 7135 days | 57% |
| Fiona | 8/10 | 7146 days | 57% |
| Gordon | 9/10 | 7147 days | 58% |
| Harrison | 7/10 | 7148 days | 54% |
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
-2.78% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 85 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 | -2.74% |
| 198 | -2.76% |
| 199 | -2.77% |
| 200 | -2.78% |
| 201 | -2.80% |
| 202 | -2.81% |
| 203 | -2.83% |
| … | … |
Balancing Adjustment
2.94% 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
83%
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.