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 Orakei Korako Cave and Thermal Park.
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.
Orakei Korako Cave and Thermal Park
Valid Reviews
71 Valid Reviews
The Orakei Korako Cave and Thermal Park experience has a total of 75 reviews. There are 71 valid reviews that are included when calculating the ranking score and 4 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 71 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 12 |
|
17% |
| 9/10 | 20 |
|
28% |
| 8/10 | 26 |
|
37% |
| 7/10 | 8 |
|
11% |
| 6/10 | 2 |
|
3% |
| 5/10 | 3 |
|
4% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
83.24% Average
The raw data average (mean) for all the Orakei Korako Cave and Thermal Park valid reviews is 83.24% and is based on 71 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
60 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 71 valid reviews, the experience has 60 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 60 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 7 |
|
12% |
| 9/10 | 17 |
|
28% |
| 8/10 | 24 |
|
40% |
| 7/10 | 7 |
|
12% |
| 6/10 | 2 |
|
3% |
| 5/10 | 3 |
|
5% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
81.83% Average
The raw data average (mean) for all the Orakei Korako Cave and Thermal Park face-to-face reviews is 81.83% and is based on 60 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
95.79%
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 |
|---|---|---|---|
| Lina Grantz | 10/10 | 44 days | 100% |
| Danice Carlson | 10/10 | 75 days | 100% |
| Johannes F | 8/10 | 3392 days | 2% |
| ben carroll | 10/10 | 3423 days | 2% |
| Ludovica Velo | 9/10 | 3688 days | 1% |
| Jan | 6/10 | 3696 days | 1% |
| Ral Pritchard | 8/10 | 3712 days | 1% |
| Catherine Schlachter | 9/10 | 4374 days | 0% |
| Christina Perez | 8/10 | 4374 days | 0% |
| Marc Engstle | 8/10 | 4421 days | 1% |
| Toke Frederiksen | 7/10 | 4422 days | 1% |
| Jirka Sirka | 10/10 | 4752 days | 1% |
| Jill Fischer | 9/10 | 4792 days | 1% |
| Craig Jones | 8/10 | 4823 days | 1% |
| Michal | 8/10 | 4840 days | 1% |
| Adam Hassan | 8/10 | 4859 days | 1% |
| Gerard van de Ven | 9/10 | 4859 days | 1% |
| The Mowbrays | 9/10 | 4864 days | 1% |
| Helmut Schmid | 10/10 | 5123 days | 1% |
| Romla | 8/10 | 5136 days | 1% |
| Ronald Veldman | 8/10 | 5136 days | 1% |
| Suzanne van Kol | 9/10 | 5151 days | 1% |
| Ellen Jacobs | 8/10 | 5156 days | 1% |
| _mel_ | 8/10 | 5189 days | 1% |
| kiwifrenchy | 7/10 | 5189 days | 1% |
| Tobias Forst | 9/10 | 5221 days | 1% |
| Ross Cooke | 10/10 | 5227 days | 1% |
| David & Mary-Jane Ryder | 10/10 | 5232 days | 1% |
| Eric & Liz McKean | 10/10 | 5477 days | 1% |
| Aimee Pollett | 7/10 | 5485 days | 1% |
| Marty Fey | 7/10 | 5486 days | 1% |
| Joop Ezendam | 8/10 | 5487 days | 1% |
| John Taylor | 9/10 | 5494 days | 1% |
| Nick Roberts | 7/10 | 5498 days | 1% |
| Isabel & Tillmann | 9/10 | 5498 days | 1% |
| mr Schumader | 8/10 | 5509 days | 1% |
| Eva Weichs | 7/10 | 5513 days | 1% |
| David | 10/10 | 5513 days | 1% |
| Trov & Liz Warren | 8/10 | 5515 days | 1% |
| Matthijs Muijsers | 8/10 | 5516 days | 1% |
| Alan & Gill Geach | 8/10 | 5517 days | 1% |
| Sarah Ewing | 10/10 | 5520 days | 1% |
| weed | 9/10 | 5523 days | 1% |
| HighlandLassie | 10/10 | 5523 days | 1% |
| Gunther | 9/10 | 5773 days | 1% |
| Adam Gerrard | 5/10 | 5790 days | 1% |
| marisraneth | 8/10 | 5829 days | 1% |
| John N | 9/10 | 5854 days | 1% |
| Blair Malcolm | 7/10 | 5869 days | 1% |
| Josy | 5/10 | 5880 days | 1% |
| JeanOddy | 9/10 | 5882 days | 1% |
| jeffandlou | 8/10 | 5939 days | 1% |
| Jarda Novotag | 6/10 | 5960 days | 1% |
| Charles Lyne | 9/10 | 6164 days | 1% |
| LucieG | 8/10 | 6203 days | 1% |
| ZimmermannA | 8/10 | 6204 days | 1% |
| CharlesG | 7/10 | 6206 days | 1% |
| Kruiver | 8/10 | 6214 days | 1% |
| MauzcoV | 8/10 | 6214 days | 1% |
| Jasmin | 8/10 | 6225 days | 1% |
| Nadine | 9/10 | 6225 days | 1% |
| AnthonyB1 | 9/10 | 6228 days | 1% |
| Rafael | 5/10 | 6231 days | 1% |
| Marieke | 9/10 | 6287 days | 1% |
| woodolly | 10/10 | 6538 days | 1% |
| Linda and Peter | 8/10 | 6573 days | 1% |
| Andria Davis | 8/10 | 6587 days | 1% |
| Jane Holm | 8/10 | 6642 days | 1% |
| Bas Marieke | 9/10 | 6935 days | 1% |
| Dennis | 9/10 | 6941 days | 1% |
| Ulla | 9/10 | 6948 days | 1% |
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 Orakei Korako Cave and Thermal Park experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-0.48% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 days. However the Orakei Korako Cave and Thermal Park 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 Orakei Korako Cave and Thermal Park experience has been adjusted for 24 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 21 | -0.42% |
| 22 | -0.44% |
| 23 | -0.46% |
| 24 | -0.48% |
| 25 | -0.50% |
| 26 | -0.52% |
| 27 | -0.54% |
| … | … |
Balancing Adjustment
0.40% 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
96%
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.