Ranking Score Explained
Hi there, 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 Dive Tutukaka.
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.
Dive Tutukaka
Valid Reviews
87 Valid Reviews
The Dive Tutukaka experience has a total of 88 reviews. There are 87 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 87 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 39 |
|
45% |
| 9/10 | 28 |
|
32% |
| 8/10 | 15 |
|
17% |
| 7/10 | 2 |
|
2% |
| 6/10 | 1 |
|
1% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
90.80% Average
The raw data average (mean) for all the Dive Tutukaka valid reviews is 90.80% and is based on 87 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
72 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 87 valid reviews, the experience has 72 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 72 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 28 |
|
39% |
| 9/10 | 26 |
|
36% |
| 8/10 | 14 |
|
19% |
| 7/10 | 1 |
|
1% |
| 6/10 | 1 |
|
1% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
89.86% Average
The raw data average (mean) for all the Dive Tutukaka face-to-face reviews is 89.86% and is based on 72 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
90.85%
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 |
|---|---|---|---|
| Barbara McNab | 10/10 | 1539 days | 100% |
| Cherie and Dan | 10/10 | 1879 days | 82% |
| Netta Tyler | 10/10 | 1932 days | 79% |
| Theerada Wongkaew | 10/10 | 1973 days | 76% |
| Gazmira Molina | 8/10 | 2016 days | 70% |
| Jessica Nasstrom | 8/10 | 2023 days | 69% |
| Adeline | 8/10 | 2028 days | 69% |
| Rebecca Pierce | 10/10 | 2055 days | 72% |
| Jane Simmons | 10/10 | 2177 days | 65% |
| Julia Clark | 9/10 | 2244 days | 62% |
| Kristina Breitwieser | 10/10 | 2249 days | 61% |
| Olivier Anciaux | 7/10 | 2262 days | 54% |
| Justine Hoffmann | 9/10 | 2294 days | 59% |
| Ruven Rintelmann | 9/10 | 2299 days | 59% |
| Niels Hoogendooen | 8/10 | 2312 days | 54% |
| Marie Brauherr | 10/10 | 2320 days | 58% |
| Luisa and Hannes | 8/10 | 2324 days | 54% |
| Christian Boudreau | 9/10 | 2342 days | 56% |
| Manuela Opprecht | 7/10 | 2674 days | 33% |
| Damaris Mayer | 3/10 | 2674 days | 26% |
| Sophie Huybrechts | 10/10 | 2716 days | 36% |
| Ally Cook | 9/10 | 2720 days | 36% |
| Jessie Sabine | 9/10 | 3019 days | 19% |
| Katrina Gamby | 10/10 | 3377 days | 0% |
| Sonia Sennane | 10/10 | 3731 days | 13% |
| Melanie Friessen | 9/10 | 3732 days | 13% |
| Barry Baily | 10/10 | 3743 days | 13% |
| Elisabeth | 9/10 | 3752 days | 13% |
| Lotte Foged | 8/10 | 3757 days | 12% |
| Anika | 8/10 | 3758 days | 12% |
| Paul | 8/10 | 3828 days | 12% |
| Elke & Charlotte | 9/10 | 3841 days | 13% |
| Kris Gijbels | 9/10 | 4074 days | 13% |
| Patrick Gloede | 10/10 | 4079 days | 13% |
| Norm and Sky | 9/10 | 4084 days | 13% |
| Roald and Ellen | 9/10 | 4085 days | 13% |
| B Kleven | 10/10 | 4090 days | 13% |
| Ann-Katrine & Sille | 10/10 | 4094 days | 13% |
| Erland Ostberg | 8/10 | 4098 days | 12% |
| Helene Descamps | 9/10 | 4112 days | 13% |
| Heather Deobald | 9/10 | 4114 days | 13% |
| Christina Fischer | 6/10 | 4119 days | 8% |
| Shoe | 10/10 | 4186 days | 13% |
| RobThexton | 10/10 | 4339 days | 13% |
| Martin | 9/10 | 4400 days | 13% |
| cpochin | 10/10 | 4430 days | 13% |
| John Casey | 10/10 | 4442 days | 13% |
| Peter Schmidt | 10/10 | 4461 days | 13% |
| Elisabeth Egerup | 10/10 | 4468 days | 13% |
| Vera Van Schie | 10/10 | 4469 days | 13% |
| Chris Glasg | 10/10 | 4469 days | 13% |
| Klass | 9/10 | 4475 days | 13% |
| Belinda Godhard | 9/10 | 4486 days | 13% |
| Theta | 9/10 | 4489 days | 13% |
| jamesg | 9/10 | 4549 days | 13% |
| Mille Winther | 10/10 | 4562 days | 13% |
| Christine Van Den Berg Michele Imbach | 10/10 | 4574 days | 13% |
| Eilahtan4 | 10/10 | 4612 days | 13% |
| NZDiver | 10/10 | 4673 days | 13% |
| Nikki Turner | 10/10 | 4716 days | 13% |
| Christine Dadd | 8/10 | 4783 days | 12% |
| KatieR | 10/10 | 4793 days | 13% |
| Michael Maddams | 9/10 | 4793 days | 13% |
| Russ C | 8/10 | 4795 days | 12% |
| danam | 10/10 | 4797 days | 13% |
| Katy1 | 9/10 | 4797 days | 13% |
| StefanieGermany | 9/10 | 4813 days | 13% |
| lannie | 9/10 | 4829 days | 13% |
| AbigailB | 10/10 | 4840 days | 13% |
| ReneeA | 10/10 | 4843 days | 13% |
| Ute | 9/10 | 4847 days | 13% |
| Annika | 10/10 | 4860 days | 13% |
| Salick | 9/10 | 4860 days | 13% |
| Thomas | 8/10 | 4866 days | 12% |
| Prentner | 10/10 | 4876 days | 13% |
| Evi | 9/10 | 4901 days | 13% |
| Limor | 8/10 | 4901 days | 12% |
| Christian | 10/10 | 5011 days | 13% |
| Lee Chapman | 10/10 | 5111 days | 13% |
| Jo and Tony | 10/10 | 5187 days | 13% |
| Lara Gema Conde | 5/10 | 5287 days | 8% |
| Trish | 10/10 | 5524 days | 13% |
| Fran | 8/10 | 5525 days | 12% |
| SueLinsk | 10/10 | 5525 days | 13% |
| Rosemary | 9/10 | 5525 days | 13% |
| Martin Christina | 9/10 | 5531 days | 13% |
| Meike | 8/10 | 5558 days | 12% |
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 Dive Tutukaka experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.74% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 94 days. However the Dive Tutukaka 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 Dive Tutukaka experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.70% |
| 198 | -2.71% |
| 199 | -2.72% |
| 200 | -2.74% |
| 201 | -2.75% |
| 202 | -2.76% |
| 203 | -2.78% |
| … | … |
Final Ranking Score
88%
The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.