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 Rankers Booking Service.
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.
Rankers Booking Service
Valid Reviews
85 Valid Reviews
The Rankers Booking Service experience has a total of 86 reviews. There are 85 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 85 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 58 |
|
68% |
| 9/10 | 18 |
|
21% |
| 8/10 | 7 |
|
8% |
| 7/10 | 1 |
|
1% |
| 6/10 | 1 |
|
1% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
95.41% Average
The raw data average (mean) for all the Rankers Booking Service valid reviews is 95.41% and is based on 85 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
95.77%
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 |
|---|---|---|---|
| Mary Anne | 10/10 | 1469 days | 100% |
| BACHAND Alain | 9/10 | 2473 days | 12% |
| Anja Bader | 10/10 | 2473 days | 12% |
| Jranette Billings | 9/10 | 2473 days | 12% |
| Steven Miller | 10/10 | 2503 days | 12% |
| René van der Molen | 10/10 | 2504 days | 12% |
| John Ehrlich | 10/10 | 2504 days | 12% |
| Erica Chisholm | 10/10 | 2504 days | 12% |
| Paola La Rocca | 9/10 | 2504 days | 11% |
| Mike Bromfield | 10/10 | 2535 days | 11% |
| paul white | 9/10 | 2535 days | 11% |
| Alois Markart | 10/10 | 2535 days | 11% |
| VERNET ALEXANDRA | 10/10 | 2535 days | 11% |
| Amandine Darnet | 10/10 | 2535 days | 11% |
| herve duflot | 10/10 | 2535 days | 11% |
| David | 10/10 | 2564 days | 10% |
| DESIDERIO MOLERO | 9/10 | 2565 days | 10% |
| Piotr Lubowicki | 10/10 | 2565 days | 10% |
| Christopher Anker | 10/10 | 2565 days | 10% |
| Michael Rovinsky | 10/10 | 2565 days | 10% |
| Kirsty Gillett | 10/10 | 2595 days | 10% |
| Paul Stevens | 10/10 | 2596 days | 10% |
| Sabrina Maier | 10/10 | 2596 days | 10% |
| M FAIZAL JABAR | 10/10 | 2596 days | 10% |
| Bree Lawlor | 10/10 | 2596 days | 10% |
| Nusyana Cham Pi | 10/10 | 2596 days | 10% |
| Benjamin Bakk | 10/10 | 2596 days | 10% |
| Robert Dugyik | 10/10 | 2596 days | 10% |
| Loïc Clerc | 10/10 | 2596 days | 10% |
| Joe Culbertson | 9/10 | 2596 days | 9% |
| Alechia Crown | 10/10 | 2596 days | 10% |
| Irene Lanser | 8/10 | 2626 days | 8% |
| Susan S | 8/10 | 2626 days | 8% |
| Sarah Peres | 10/10 | 2626 days | 9% |
| Brian Webber | 10/10 | 2626 days | 9% |
| Henry Schenker | 10/10 | 2626 days | 9% |
| bat a | 9/10 | 2626 days | 9% |
| Judy Holt | 8/10 | 2626 days | 8% |
| Taher Hasanali | 10/10 | 2626 days | 9% |
| Susan Boyton | 10/10 | 2657 days | 9% |
| jeffrey goebel | 9/10 | 2657 days | 8% |
| Charlotte Amouret | 10/10 | 2657 days | 9% |
| Sophie ROUX | 10/10 | 2688 days | 8% |
| Heather McDonald | 9/10 | 2688 days | 8% |
| Debra Tolic | 10/10 | 2688 days | 8% |
| Chee Kuan Lim | 9/10 | 2688 days | 8% |
| G Visser | 10/10 | 2688 days | 8% |
| DEBBIE LAMBERT | 10/10 | 2688 days | 8% |
| Gina DAVIS | 10/10 | 2688 days | 8% |
| Paul Mullooly | 10/10 | 2688 days | 8% |
| Lucie PHILIPPE | 10/10 | 2688 days | 8% |
| Emily Joyce | 9/10 | 2718 days | 7% |
| Sergio Meana Martinez | 10/10 | 2718 days | 7% |
| Evelyn Toh | 10/10 | 2718 days | 7% |
| Jean-Luc Brocard | 9/10 | 2718 days | 7% |
| Deborah Vitali | 8/10 | 2749 days | 6% |
| Jeramy Janoski | 10/10 | 2749 days | 7% |
| Daniel Benjamin | 10/10 | 2749 days | 7% |
| Sarah Bailey | 10/10 | 2749 days | 7% |
| Michael Jost | 10/10 | 2749 days | 7% |
| Van Weigel | 10/10 | 2749 days | 7% |
| Lizzie Lacey-Brennan | 10/10 | 2749 days | 7% |
| Chia Shen Cheng | 10/10 | 2778 days | 6% |
| Gilbert Deveaux | 10/10 | 2778 days | 6% |
| Kathryn Conrad | 10/10 | 2779 days | 6% |
| Fannie Bernier | 9/10 | 2779 days | 6% |
| hannah murray | 8/10 | 2779 days | 5% |
| Whitney Bak | 10/10 | 2779 days | 6% |
| Sandra Cabrera | 9/10 | 2779 days | 6% |
| Wendy Leung | 10/10 | 2779 days | 6% |
| Adrian Trumper | 9/10 | 2779 days | 6% |
| Marcos Tosto | 7/10 | 2779 days | 4% |
| John van Herk | 9/10 | 2779 days | 6% |
| Teun Steur | 9/10 | 2779 days | 6% |
| JOSY ANANTA WIJAYA | 10/10 | 2810 days | 5% |
| Citra Lestari | 10/10 | 2810 days | 5% |
| wendy legge | 10/10 | 2810 days | 5% |
| ALEX RIVERO | 9/10 | 2810 days | 5% |
| David Caravati | 10/10 | 2810 days | 5% |
| F B | 8/10 | 2838 days | 4% |
| MERVYN ADAMS | 6/10 | 2868 days | 0% |
| Chan Hoe Yip | 8/10 | 2899 days | 3% |
| Ana Segota | 10/10 | 2929 days | 3% |
| Mark Lechner | 10/10 | 2929 days | 3% |
| Richard Tallack | 10/10 | 2960 days | 2% |
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 Rankers Booking Service experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.95% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 47 days. However the Rankers Booking Service 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 Rankers Booking Service experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.89% |
| 198 | -3.91% |
| 199 | -3.93% |
| 200 | -3.95% |
| 201 | -3.97% |
| 202 | -3.99% |
| 203 | -4.01% |
| … | … |
Balancing Adjustment
0.77% 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
93%
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.