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 Akaroa Dolphins.
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.
Akaroa Dolphins
Valid Reviews
79 Valid Reviews
The Akaroa Dolphins experience has a total of 80 reviews. There are 79 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 79 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 32 |
|
41% |
| 9/10 | 26 |
|
33% |
| 8/10 | 15 |
|
19% |
| 7/10 | 3 |
|
4% |
| 6/10 | 3 |
|
4% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
90.25% Average
The raw data average (mean) for all the Akaroa Dolphins valid reviews is 90.25% and is based on 79 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
59 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 79 valid reviews, the experience has 59 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 59 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 19 |
|
32% |
| 9/10 | 20 |
|
34% |
| 8/10 | 14 |
|
24% |
| 7/10 | 3 |
|
5% |
| 6/10 | 3 |
|
5% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
88.31% Average
The raw data average (mean) for all the Akaroa Dolphins face-to-face reviews is 88.31% and is based on 59 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
91.10%
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 |
|---|---|---|---|
| Lucy C | 9/10 | 47 days | 100% |
| Christine | 9/10 | 106 days | 99% |
| Tracey Cron | 9/10 | 137 days | 97% |
| Inga Hoffmann | 10/10 | 837 days | 15% |
| Freddrick Weiser | 9/10 | 1174 days | 5% |
| Mike Dw | 9/10 | 1290 days | 4% |
| Nolwen | 9/10 | 1650 days | 4% |
| The Beans | 10/10 | 1659 days | 4% |
| Ross D | 10/10 | 1664 days | 4% |
| Peter Passlack | 10/10 | 1667 days | 4% |
| Chea Hao Wong | 10/10 | 1720 days | 3% |
| Caroline Shaw | 10/10 | 1889 days | 3% |
| Pierre Mathis | 10/10 | 1900 days | 3% |
| Brenda Oomen | 10/10 | 1903 days | 3% |
| Estelle Daniel | 10/10 | 1907 days | 3% |
| Kim-Lara | 8/10 | 1922 days | 3% |
| Tamara | 10/10 | 1936 days | 3% |
| Sandra P | 10/10 | 1964 days | 3% |
| Marie Schmid | 10/10 | 2291 days | 2% |
| Angie Cairns | 10/10 | 2321 days | 2% |
| Jimmy Shaw | 10/10 | 2574 days | 2% |
| Wendy Hawkins | 8/10 | 2995 days | 1% |
| Roger Hawkins | 9/10 | 2995 days | 1% |
| Tanja Schlagermann | 10/10 | 3002 days | 1% |
| Alexander Mukasa | 10/10 | 3002 days | 1% |
| Erik Muchembled | 10/10 | 3004 days | 1% |
| Andrea Lang | 8/10 | 3006 days | 1% |
| Xtian_P | 10/10 | 3090 days | 1% |
| michellephil | 10/10 | 3151 days | 1% |
| nztintin | 10/10 | 3365 days | 0% |
| mandd | 10/10 | 3365 days | 0% |
| Orlando | 9/10 | 3377 days | 0% |
| Uwe Herrdum | 9/10 | 3381 days | 0% |
| Francis Corrigan | 9/10 | 3395 days | 0% |
| John & Vicki | 9/10 | 3472 days | 0% |
| G Tulloch | 9/10 | 3694 days | 1% |
| Edward Marhi | 8/10 | 3697 days | 1% |
| Robin Adair | 9/10 | 3718 days | 1% |
| Sandra Schulz | 9/10 | 3725 days | 1% |
| Derek Puplett | 9/10 | 3735 days | 1% |
| Martin Current | 9/10 | 3746 days | 1% |
| Hartmut Vogt | 10/10 | 3747 days | 1% |
| allesca | 9/10 | 3851 days | 1% |
| Mary Van | 8/10 | 3912 days | 1% |
| penz | 9/10 | 3974 days | 1% |
| victoriauk | 8/10 | 4004 days | 1% |
| Susanne Strassmann | 6/10 | 4102 days | 0% |
| M Sicard | 9/10 | 4106 days | 1% |
| Lasse Olesen | 9/10 | 4117 days | 1% |
| Keith Wilde | 8/10 | 4119 days | 1% |
| Sarah Goeckener | 9/10 | 4196 days | 1% |
| katharina | 10/10 | 4196 days | 1% |
| Katrin Wennin | 8/10 | 4197 days | 1% |
| Thorben Thede | 9/10 | 4198 days | 1% |
| Roma | 10/10 | 4209 days | 1% |
| HairyHaggis | 10/10 | 4216 days | 1% |
| Ronny | 6/10 | 4435 days | 0% |
| ChristinaV | 10/10 | 4439 days | 1% |
| JudithLehr | 6/10 | 4442 days | 0% |
| Steven | 10/10 | 4446 days | 1% |
| StijnH | 8/10 | 4447 days | 1% |
| FramiskaH | 8/10 | 4448 days | 1% |
| StefanGermany1 | 8/10 | 4448 days | 1% |
| JaninaF | 10/10 | 4448 days | 1% |
| Tatjane | 9/10 | 4461 days | 1% |
| XaviG | 9/10 | 4464 days | 1% |
| JesusB | 7/10 | 4464 days | 1% |
| Denk | 8/10 | 4492 days | 1% |
| Katie Mitchell | 10/10 | 4581 days | 1% |
| Ben Ackland | 8/10 | 4817 days | 1% |
| Tessa McCormick | 8/10 | 4827 days | 1% |
| John Beirne | 10/10 | 5184 days | 1% |
| ranker_110 | 7/10 | 5188 days | 1% |
| Christine | 10/10 | 5193 days | 1% |
| Helle | 9/10 | 5195 days | 1% |
| John | 7/10 | 5195 days | 1% |
| Reggie | 10/10 | 5196 days | 1% |
| Dave | 9/10 | 5207 days | 1% |
| Beate | 8/10 | 5208 days | 1% |
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 Akaroa Dolphins experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-0.23% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 94 days. However the Akaroa Dolphins 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 Akaroa Dolphins experience has been adjusted for 17 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 14 | -0.19% |
| 15 | -0.21% |
| 16 | -0.22% |
| 17 | -0.23% |
| 18 | -0.25% |
| 19 | -0.26% |
| 20 | -0.27% |
| … | … |
Final Ranking Score
91%
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.