G'day, 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 Doubtful Sound Overnight Cruises.
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.
89 Valid Reviews
The Doubtful Sound Overnight Cruises experience has a total of 89 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 89 valid reviews:
Rating | Count | Percentage | |
---|---|---|---|
10/10 | 55 |
|
62% |
9/10 | 25 |
|
28% |
8/10 | 8 |
|
9% |
7/10 | 0 |
|
0% |
6/10 | 1 |
|
1% |
5/10 | 0 |
|
0% |
4/10 | 0 |
|
0% |
3/10 | 0 |
|
0% |
2/10 | 0 |
|
0% |
1/10 | 0 |
|
0% |
94.94% Average
The raw data average (mean) for all the Doubtful Sound Overnight Cruises valid reviews is 94.94% and is based on 89 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
74 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 89 valid reviews, the experience has 74 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 74 face-to-face reviews:
Rating | Count | Percentage | |
---|---|---|---|
10/10 | 44 |
|
59% |
9/10 | 22 |
|
30% |
8/10 | 8 |
|
11% |
7/10 | 0 |
|
0% |
6/10 | 0 |
|
0% |
5/10 | 0 |
|
0% |
4/10 | 0 |
|
0% |
3/10 | 0 |
|
0% |
2/10 | 0 |
|
0% |
1/10 | 0 |
|
0% |
94.86% Average
The raw data average (mean) for all the Doubtful Sound Overnight Cruises face-to-face reviews is 94.86% and is based on 74 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
95.39%
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 |
---|---|---|---|
Jonny Horn | 9/10 | 3028 days | 100% |
Hazel Norman | 10/10 | 3043 days | 100% |
James Jackson | 10/10 | 3044 days | 100% |
Bartlomiej Berger | 9/10 | 3739 days | 47% |
Ann Wilson | 8/10 | 3995 days | 28% |
Anne and Steve Bartlett | 9/10 | 4060 days | 23% |
Abby Rescr | 9/10 | 4374 days | 0% |
Frederick Dean | 8/10 | 4374 days | 0% |
Joey Mertzig | 10/10 | 4391 days | 38% |
Rien | 9/10 | 4731 days | 38% |
Clausen | 9/10 | 4732 days | 38% |
kiwifrenchy | 10/10 | 4739 days | 38% |
Sam | 10/10 | 4743 days | 38% |
Pete & Pat Etheridge | 10/10 | 4748 days | 38% |
Mike & Jennie | 9/10 | 4750 days | 38% |
Stefes Wencke | 10/10 | 4752 days | 38% |
Uwe Henze | 10/10 | 4753 days | 38% |
Manuela Weber | 10/10 | 4753 days | 38% |
Thyg Lingdal | 10/10 | 4767 days | 38% |
caro | 10/10 | 4799 days | 38% |
Dean | 9/10 | 4814 days | 38% |
Anna Bret | 8/10 | 4839 days | 37% |
Jaime Castells | 9/10 | 4839 days | 38% |
Gary Koehler | 10/10 | 5096 days | 38% |
jlgavin | 6/10 | 5105 days | 33% |
Verheyen | 10/10 | 5109 days | 38% |
Chris Darlington | 10/10 | 5113 days | 38% |
Dieter Uhlmann | 9/10 | 5116 days | 38% |
Angi Otti | 10/10 | 5124 days | 38% |
Jackie Morris | 10/10 | 5124 days | 38% |
Samuel Prechel | 10/10 | 5125 days | 38% |
David Glover | 10/10 | 5127 days | 38% |
Claus Olsen | 10/10 | 5128 days | 38% |
H Schepers | 9/10 | 5129 days | 38% |
georgiarose89 | 10/10 | 5164 days | 38% |
chrissie2011 | 10/10 | 5164 days | 38% |
Chris | 10/10 | 5383 days | 38% |
Sabine | 10/10 | 5383 days | 38% |
Kevin & Chris | 9/10 | 5403 days | 38% |
davidm239 | 9/10 | 5409 days | 38% |
Margie | 10/10 | 5448 days | 38% |
Agnes | 8/10 | 5449 days | 37% |
Graeme + Jane Ryan | 10/10 | 5460 days | 38% |
Westermann | 10/10 | 5461 days | 38% |
Peter Brown | 10/10 | 5466 days | 38% |
johnandgin | 10/10 | 5470 days | 38% |
Angela | 10/10 | 5471 days | 38% |
T. Timmers | 9/10 | 5484 days | 38% |
Loleit | 10/10 | 5491 days | 38% |
David Valentine | 10/10 | 5492 days | 38% |
Annette Schmitt | 9/10 | 5492 days | 38% |
Jeremy & Sarah Rind | 10/10 | 5497 days | 38% |
Jessica | 9/10 | 5503 days | 38% |
ChristinaO | 10/10 | 5529 days | 38% |
Simon Jones | 9/10 | 5529 days | 38% |
Jerry | 10/10 | 5560 days | 38% |
HairyHaggis | 9/10 | 5590 days | 38% |
Suzanne | 10/10 | 5621 days | 38% |
Traveller Girl | 10/10 | 5774 days | 38% |
Switz | 10/10 | 5788 days | 38% |
DanielGermany | 10/10 | 5796 days | 38% |
CornelissenS | 9/10 | 5821 days | 38% |
Inger | 10/10 | 5821 days | 38% |
Robert | 9/10 | 5835 days | 38% |
Theresa | 9/10 | 5841 days | 38% |
Sue | 9/10 | 5843 days | 38% |
Inger Skov | 10/10 | 5847 days | 38% |
Ruben | 8/10 | 5877 days | 37% |
Claire | 10/10 | 5890 days | 38% |
C Digby | 9/10 | 5894 days | 38% |
Adam | 10/10 | 5934 days | 38% |
Stephanie Schikora | 10/10 | 5947 days | 38% |
Sue Stewart | 10/10 | 6054 days | 38% |
James Gibbs | 8/10 | 6146 days | 37% |
Helen | 9/10 | 6154 days | 38% |
Menashe | 10/10 | 6174 days | 38% |
George Jeffs | 10/10 | 6183 days | 38% |
Paul Weston | 9/10 | 6197 days | 38% |
Marian Mckinney | 10/10 | 6197 days | 38% |
Charles Price | 8/10 | 6208 days | 37% |
Vicky Elliott | 10/10 | 6215 days | 38% |
Anne Mainwaring | 10/10 | 6223 days | 38% |
Kilsby | 10/10 | 6232 days | 38% |
Dupre | 8/10 | 6273 days | 37% |
dieter | 10/10 | 6291 days | 38% |
Rene Schotvanger | 10/10 | 6406 days | 38% |
Pat Brewster | 10/10 | 6406 days | 38% |
Paul Yacoumis | 10/10 | 6532 days | 38% |
Sandra | 10/10 | 6541 days | 38% |
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
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 Doubtful Sound Overnight Cruises experience has plenty of reviews and does not meet the criteria for any adjustment.
-4.14% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 53 days. However the Doubtful Sound Overnight Cruises 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 Doubtful Sound Overnight Cruises experience has been adjusted for 200 days. Adjustments are according to the following table.
Days | Adjustment |
---|---|
… | … |
197 | -4.08% |
198 | -4.10% |
199 | -4.12% |
200 | -4.14% |
201 | -4.16% |
202 | -4.19% |
203 | -4.21% |
… | … |
0.84% 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.
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.