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
90.66%
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 | 1173 days | 100% |
| Cherie and Dan | 10/10 | 1513 days | 85% |
| Netta Tyler | 10/10 | 1565 days | 83% |
| Theerada Wongkaew | 10/10 | 1607 days | 81% |
| Gazmira Molina | 8/10 | 1650 days | 75% |
| Jessica Nasstrom | 8/10 | 1657 days | 75% |
| Adeline | 8/10 | 1662 days | 74% |
| Rebecca Pierce | 10/10 | 1688 days | 78% |
| Jane Simmons | 10/10 | 1810 days | 72% |
| Julia Clark | 9/10 | 1878 days | 69% |
| Kristina Breitwieser | 10/10 | 1883 days | 69% |
| Olivier Anciaux | 7/10 | 1896 days | 62% |
| Justine Hoffmann | 9/10 | 1928 days | 67% |
| Ruven Rintelmann | 9/10 | 1933 days | 67% |
| Niels Hoogendooen | 8/10 | 1946 days | 63% |
| Marie Brauherr | 10/10 | 1954 days | 66% |
| Luisa and Hannes | 8/10 | 1958 days | 62% |
| Christian Boudreau | 9/10 | 1976 days | 65% |
| Manuela Opprecht | 7/10 | 2308 days | 45% |
| Damaris Mayer | 3/10 | 2308 days | 37% |
| Sophie Huybrechts | 10/10 | 2350 days | 49% |
| Ally Cook | 9/10 | 2354 days | 49% |
| Jessie Sabine | 9/10 | 2653 days | 36% |
| Katrina Gamby | 10/10 | 3011 days | 20% |
| Sonia Sennane | 10/10 | 3365 days | 5% |
| Melanie Friessen | 9/10 | 3366 days | 5% |
| Barry Baily | 10/10 | 3377 days | 4% |
| Elisabeth | 9/10 | 3386 days | 4% |
| Lotte Foged | 8/10 | 3391 days | 3% |
| Anika | 8/10 | 3392 days | 3% |
| Paul | 8/10 | 3462 days | 0% |
| Elke & Charlotte | 9/10 | 3475 days | 0% |
| Kris Gijbels | 9/10 | 3708 days | 15% |
| Patrick Gloede | 10/10 | 3713 days | 15% |
| Norm and Sky | 9/10 | 3718 days | 15% |
| Roald and Ellen | 9/10 | 3719 days | 15% |
| B Kleven | 10/10 | 3724 days | 15% |
| Ann-Katrine & Sille | 10/10 | 3728 days | 15% |
| Erland Ostberg | 8/10 | 3732 days | 13% |
| Helene Descamps | 9/10 | 3746 days | 15% |
| Heather Deobald | 9/10 | 3748 days | 15% |
| Christina Fischer | 6/10 | 3753 days | 11% |
| Shoe | 10/10 | 3820 days | 15% |
| RobThexton | 10/10 | 3973 days | 15% |
| Martin | 9/10 | 4034 days | 15% |
| cpochin | 10/10 | 4064 days | 15% |
| John Casey | 10/10 | 4076 days | 15% |
| Peter Schmidt | 10/10 | 4095 days | 15% |
| Elisabeth Egerup | 10/10 | 4102 days | 15% |
| Vera Van Schie | 10/10 | 4103 days | 15% |
| Chris Glasg | 10/10 | 4103 days | 15% |
| Klass | 9/10 | 4109 days | 15% |
| Belinda Godhard | 9/10 | 4120 days | 15% |
| Theta | 9/10 | 4123 days | 15% |
| jamesg | 9/10 | 4183 days | 15% |
| Mille Winther | 10/10 | 4196 days | 15% |
| Christine Van Den Berg Michele Imbach | 10/10 | 4208 days | 15% |
| Eilahtan4 | 10/10 | 4246 days | 15% |
| NZDiver | 10/10 | 4307 days | 15% |
| Nikki Turner | 10/10 | 4350 days | 15% |
| Christine Dadd | 8/10 | 4417 days | 13% |
| KatieR | 10/10 | 4427 days | 15% |
| Michael Maddams | 9/10 | 4427 days | 15% |
| Russ C | 8/10 | 4429 days | 13% |
| danam | 10/10 | 4430 days | 15% |
| Katy1 | 9/10 | 4431 days | 15% |
| StefanieGermany | 9/10 | 4446 days | 15% |
| lannie | 9/10 | 4462 days | 15% |
| AbigailB | 10/10 | 4474 days | 15% |
| ReneeA | 10/10 | 4477 days | 15% |
| Ute | 9/10 | 4481 days | 15% |
| Annika | 10/10 | 4493 days | 15% |
| Salick | 9/10 | 4493 days | 15% |
| Thomas | 8/10 | 4500 days | 13% |
| Prentner | 10/10 | 4509 days | 15% |
| Evi | 9/10 | 4534 days | 15% |
| Limor | 8/10 | 4535 days | 13% |
| Christian | 10/10 | 4644 days | 15% |
| Lee Chapman | 10/10 | 4745 days | 15% |
| Jo and Tony | 10/10 | 4821 days | 15% |
| Lara Gema Conde | 5/10 | 4921 days | 10% |
| Trish | 10/10 | 5158 days | 15% |
| Fran | 8/10 | 5159 days | 13% |
| SueLinsk | 10/10 | 5159 days | 15% |
| Rosemary | 9/10 | 5159 days | 15% |
| Martin Christina | 9/10 | 5165 days | 15% |
| Meike | 8/10 | 5192 days | 13% |
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
-2.76% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 93 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 | -2.72% |
| 198 | -2.73% |
| 199 | -2.74% |
| 200 | -2.76% |
| 201 | -2.77% |
| 202 | -2.79% |
| 203 | -2.80% |
| … | … |
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.