Hi, 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 Wairakei Thermal Valley Campground.
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.
Wairakei Thermal Valley Campground
Valid Reviews
48 Valid Reviews
The Wairakei Thermal Valley Campground experience has a total of 54 reviews. There are 48 valid reviews that are included when calculating the ranking score and 6 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.
Within these 48 valid reviews, the experience has 1 face-to-face review collected during interviews by our team.
Below is the distribution of ratings for the 48 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 11 |
|
23% |
| 9/10 | 14 |
|
29% |
| 8/10 | 6 |
|
13% |
| 7/10 | 2 |
|
4% |
| 6/10 | 2 |
|
4% |
| 5/10 | 3 |
|
6% |
| 4/10 | 1 |
|
2% |
| 3/10 | 2 |
|
4% |
| 2/10 | 3 |
|
6% |
| 1/10 | 4 |
|
8% |
71.88% Average
The raw data average (mean) for all the Wairakei Thermal Valley Campground valid reviews is 71.88% and is based on 48 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Weighted Average
81.35%
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 |
|---|---|---|---|
| Simon | 9/10 | 485 days | 100% |
| Eline | 10/10 | 636 days | 90% |
| Jane | 9/10 | 728 days | 81% |
| Marek | 8/10 | 911 days | 60% |
| Lisa | 2/10 | 911 days | 28% |
| Samuel Dällenbach | 6/10 | 942 days | 50% |
| BM | 5/10 | 971 days | 41% |
| Jerry | 9/10 | 1002 days | 50% |
| Claire Jones | 9/10 | 1308 days | 23% |
| Cam B | 9/10 | 1308 days | 23% |
| George T | 5/10 | 1308 days | 18% |
| Valerie | 10/10 | 1336 days | 22% |
| Katie Edser | 10/10 | 1336 days | 22% |
| Miguel Lebon | 10/10 | 1459 days | 15% |
| Jess | 1/10 | 1732 days | 2% |
| STEVE AND IRENE | 9/10 | 1732 days | 6% |
| Spoudaios Horaxylon | 1/10 | 2494 days | 1% |
| Christine | 1/10 | 2677 days | 1% |
| Laura Ritchie | 9/10 | 2738 days | 3% |
| Emma | 9/10 | 2828 days | 3% |
| Salpietro Giovanna | 1/10 | 2828 days | 1% |
| Sam | 6/10 | 2828 days | 3% |
| Imaxnz | 9/10 | 2859 days | 3% |
| Hamish & Jax | 8/10 | 3042 days | 3% |
| L + J | 4/10 | 3073 days | 2% |
| Grant Annan | 10/10 | 3240 days | 2% |
| Elizabeth Bellette | 10/10 | 3314 days | 2% |
| Dalton Howden | 8/10 | 3386 days | 2% |
| Matt Harrison | 10/10 | 3432 days | 2% |
| Jamie | 3/10 | 3437 days | 1% |
| Lisa Yates | 10/10 | 3486 days | 2% |
| Daniel Teusner | 9/10 | 3528 days | 2% |
| Matthias Wohlgemuth | 3/10 | 3541 days | 1% |
| Catherine Kay | 9/10 | 3542 days | 2% |
| Karien Spruit-Wermeester | 8/10 | 3557 days | 2% |
| Rikard Pahlen | 9/10 | 3562 days | 2% |
| Marinette Kegels | 9/10 | 3572 days | 2% |
| Katie Dalton | 10/10 | 3634 days | 1% |
| Jeffrey Ross | 7/10 | 3672 days | 1% |
| Angie Abbink | 9/10 | 3707 days | 1% |
| Harriet Walker | 8/10 | 3737 days | 1% |
| Heather Massey | 7/10 | 3915 days | 1% |
| Christina Sperling | 5/10 | 3985 days | 0% |
| Allister George | 2/10 | 3996 days | 0% |
| Keira Savill | 2/10 | 4108 days | 0% |
| Zoilo Abad | 10/10 | 4241 days | 0% |
| Malcolm & Susan | 8/10 | 4594 days | 1% |
| Peter Blaney | 10/10 | 5695 days | 0% |
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 Wairakei Thermal Valley Campground experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.23% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 68 days. However the Wairakei Thermal Valley Campground 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 Wairakei Thermal Valley Campground experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.18% |
| 198 | -3.20% |
| 199 | -3.21% |
| 200 | -3.23% |
| 201 | -3.25% |
| 202 | -3.26% |
| 203 | -3.28% |
| … | … |
Balancing Adjustment
3.55% 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.