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 Seal Swim Kaikoura.
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.
Seal Swim Kaikoura
Valid Reviews
54 Valid Reviews
The Seal Swim Kaikoura experience has a total of 54 valid reviews. There are no 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.
Below is the distribution of ratings for the 54 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 30 |
|
56% |
| 9/10 | 11 |
|
20% |
| 8/10 | 12 |
|
22% |
| 7/10 | 1 |
|
2% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
92.96% Average
The raw data average (mean) for all the Seal Swim Kaikoura valid reviews is 92.96% and is based on 54 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
35 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 54 valid reviews, the experience has 35 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 35 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 14 |
|
40% |
| 9/10 | 8 |
|
23% |
| 8/10 | 12 |
|
34% |
| 7/10 | 1 |
|
3% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
90.00% Average
The raw data average (mean) for all the Seal Swim Kaikoura face-to-face reviews is 90.00% and is based on 35 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
93.84%
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 |
|---|---|---|---|
| Erica Muir | 10/10 | 1898 days | 100% |
| Peter Leschev | 10/10 | 2323 days | 82% |
| Mietta Feery | 10/10 | 3366 days | 36% |
| Susie Dietz | 10/10 | 3417 days | 34% |
| Valentine de Beer | 9/10 | 3698 days | 22% |
| Stephan Kirchenbaur | 9/10 | 3719 days | 21% |
| Cecile Seramis | 8/10 | 3730 days | 20% |
| Hannes Puediger | 10/10 | 3772 days | 19% |
| Virgil Spruit | 8/10 | 3809 days | 17% |
| Emma | 9/10 | 4089 days | 5% |
| Manuela Opprecht | 10/10 | 4129 days | 3% |
| Amanda Williams | 10/10 | 4209 days | 0% |
| Nica Georgiana | 10/10 | 4482 days | 15% |
| Ali Mitchell | 10/10 | 4483 days | 15% |
| sebastien gairaud | 10/10 | 4483 days | 15% |
| Lara Mroseck | 8/10 | 4512 days | 14% |
| Robert Geissler | 10/10 | 4512 days | 15% |
| Ken | 10/10 | 4910 days | 15% |
| Nigel&Annette Greaves | 10/10 | 4910 days | 15% |
| Rolf Zwahlen | 10/10 | 4917 days | 15% |
| joke | 8/10 | 5538 days | 14% |
| Michael Howat | 10/10 | 5541 days | 15% |
| Veronica Warren | 9/10 | 5541 days | 14% |
| Tyson Burnett | 10/10 | 5552 days | 15% |
| Nicolas | 10/10 | 5552 days | 15% |
| Christine Wirth | 9/10 | 5570 days | 14% |
| Seifert | 10/10 | 5571 days | 15% |
| stowie | 10/10 | 5579 days | 15% |
| efusco | 10/10 | 5579 days | 15% |
| Mark | 10/10 | 5579 days | 15% |
| Ulric | 8/10 | 5938 days | 14% |
| janden | 10/10 | 5990 days | 15% |
| Jane | 9/10 | 6006 days | 14% |
| Kimberly Skyes | 8/10 | 6013 days | 14% |
| Jenny Davies | 8/10 | 6016 days | 14% |
| MichaelS1 | 9/10 | 6266 days | 14% |
| JeremyE | 8/10 | 6268 days | 14% |
| LucyT | 9/10 | 6268 days | 14% |
| Lynn White | 9/10 | 6276 days | 14% |
| Greg18 | 10/10 | 6281 days | 15% |
| SebastianGermany1 | 8/10 | 6285 days | 14% |
| John | 7/10 | 6291 days | 13% |
| Prentner | 10/10 | 6330 days | 15% |
| Anke | 8/10 | 6600 days | 14% |
| purplekat99 | 10/10 | 6615 days | 15% |
| Richard Anthony | 9/10 | 6637 days | 14% |
| Claire Masling | 9/10 | 6650 days | 14% |
| Carrie Cook | 10/10 | 6662 days | 15% |
| Stephanie | 10/10 | 6691 days | 15% |
| Tanya | 10/10 | 6693 days | 15% |
| Malena | 8/10 | 6727 days | 14% |
| Andy Chapman | 8/10 | 6852 days | 14% |
| Stefan | 10/10 | 6971 days | 15% |
| Deloraine | 10/10 | 6987 days | 15% |
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 Seal Swim Kaikoura experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.87% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 88 days. However the Seal Swim Kaikoura 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 Seal Swim Kaikoura experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.82% |
| 198 | -2.84% |
| 199 | -2.85% |
| 200 | -2.87% |
| 201 | -2.88% |
| 202 | -2.90% |
| 203 | -2.91% |
| … | … |
Balancing Adjustment
0.87% 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
92%
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.