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 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
46 Valid Reviews
The Wairakei Thermal Valley Campground experience has a total of 52 reviews. There are 46 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 46 valid reviews, the experience has 1 face-to-face review collected during interviews by our team.
Below is the distribution of ratings for the 46 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 10 |
|
22% |
| 9/10 | 13 |
|
28% |
| 8/10 | 6 |
|
13% |
| 7/10 | 2 |
|
4% |
| 6/10 | 2 |
|
4% |
| 5/10 | 3 |
|
7% |
| 4/10 | 1 |
|
2% |
| 3/10 | 2 |
|
4% |
| 2/10 | 3 |
|
7% |
| 1/10 | 4 |
|
9% |
70.87% Average
The raw data average (mean) for all the Wairakei Thermal Valley Campground valid reviews is 70.87% and is based on 46 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
78.49%
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 |
|---|---|---|---|
| Jane | 9/10 | 82 days | 100% |
| Marek | 8/10 | 265 days | 95% |
| Lisa | 2/10 | 265 days | 44% |
| Samuel Dällenbach | 6/10 | 296 days | 83% |
| BM | 5/10 | 325 days | 72% |
| Jerry | 9/10 | 356 days | 93% |
| Claire Jones | 9/10 | 662 days | 75% |
| Cam B | 9/10 | 662 days | 75% |
| George T | 5/10 | 662 days | 58% |
| Valerie | 10/10 | 690 days | 74% |
| Katie Edser | 10/10 | 690 days | 74% |
| Miguel Lebon | 10/10 | 813 days | 63% |
| Jess | 1/10 | 1086 days | 14% |
| STEVE AND IRENE | 9/10 | 1086 days | 36% |
| Spoudaios Horaxylon | 1/10 | 1848 days | 1% |
| Christine | 1/10 | 2031 days | 1% |
| Laura Ritchie | 9/10 | 2092 days | 4% |
| Emma | 9/10 | 2182 days | 4% |
| Salpietro Giovanna | 1/10 | 2182 days | 1% |
| Sam | 6/10 | 2182 days | 3% |
| Imaxnz | 9/10 | 2213 days | 3% |
| Hamish & Jax | 8/10 | 2396 days | 3% |
| L + J | 4/10 | 2427 days | 2% |
| Grant Annan | 10/10 | 2594 days | 3% |
| Elizabeth Bellette | 10/10 | 2668 days | 3% |
| Dalton Howden | 8/10 | 2740 days | 2% |
| Matt Harrison | 10/10 | 2786 days | 2% |
| Jamie | 3/10 | 2791 days | 1% |
| Lisa Yates | 10/10 | 2840 days | 2% |
| Daniel Teusner | 9/10 | 2882 days | 2% |
| Matthias Wohlgemuth | 3/10 | 2895 days | 1% |
| Catherine Kay | 9/10 | 2896 days | 2% |
| Karien Spruit-Wermeester | 8/10 | 2912 days | 2% |
| Rikard Pahlen | 9/10 | 2916 days | 2% |
| Marinette Kegels | 9/10 | 2926 days | 2% |
| Katie Dalton | 10/10 | 2988 days | 2% |
| Jeffrey Ross | 7/10 | 3026 days | 2% |
| Angie Abbink | 9/10 | 3061 days | 2% |
| Harriet Walker | 8/10 | 3091 days | 2% |
| Heather Massey | 7/10 | 3269 days | 1% |
| Christina Sperling | 5/10 | 3339 days | 1% |
| Allister George | 2/10 | 3350 days | 0% |
| Keira Savill | 2/10 | 3462 days | 0% |
| Zoilo Abad | 10/10 | 3595 days | 1% |
| Malcolm & Susan | 8/10 | 3949 days | 0% |
| Peter Blaney | 10/10 | 5049 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
-0.79% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 41 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 39 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 36 | -0.73% |
| 37 | -0.75% |
| 38 | -0.77% |
| 39 | -0.79% |
| 40 | -0.81% |
| 41 | -0.83% |
| 42 | -0.85% |
| … | … |
Balancing Adjustment
3.68% 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
81%
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.