Kia ora, 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.
95.25%
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 | 2925 days | 100% |
Hazel Norman | 10/10 | 2940 days | 100% |
James Jackson | 10/10 | 2941 days | 100% |
Bartlomiej Berger | 9/10 | 3636 days | 48% |
Ann Wilson | 8/10 | 3892 days | 29% |
Anne and Steve Bartlett | 9/10 | 3957 days | 24% |
Abby Rescr | 9/10 | 4271 days | 1% |
Frederick Dean | 8/10 | 4271 days | 1% |
Joey Mertzig | 10/10 | 4288 days | 0% |
Rien | 9/10 | 4628 days | 31% |
Clausen | 9/10 | 4629 days | 31% |
kiwifrenchy | 10/10 | 4636 days | 31% |
Sam | 10/10 | 4640 days | 31% |
Pete & Pat Etheridge | 10/10 | 4645 days | 31% |
Mike & Jennie | 9/10 | 4647 days | 31% |
Stefes Wencke | 10/10 | 4649 days | 31% |
Uwe Henze | 10/10 | 4650 days | 31% |
Manuela Weber | 10/10 | 4650 days | 31% |
Thyg Lingdal | 10/10 | 4664 days | 31% |
caro | 10/10 | 4696 days | 31% |
Dean | 9/10 | 4711 days | 31% |
Anna Bret | 8/10 | 4736 days | 30% |
Jaime Castells | 9/10 | 4736 days | 31% |
Gary Koehler | 10/10 | 4993 days | 31% |
jlgavin | 6/10 | 5002 days | 26% |
Verheyen | 10/10 | 5006 days | 31% |
Chris Darlington | 10/10 | 5010 days | 31% |
Dieter Uhlmann | 9/10 | 5013 days | 31% |
Angi Otti | 10/10 | 5021 days | 31% |
Jackie Morris | 10/10 | 5021 days | 31% |
Samuel Prechel | 10/10 | 5022 days | 31% |
David Glover | 10/10 | 5024 days | 31% |
Claus Olsen | 10/10 | 5025 days | 31% |
H Schepers | 9/10 | 5026 days | 31% |
georgiarose89 | 10/10 | 5061 days | 31% |
chrissie2011 | 10/10 | 5061 days | 31% |
Chris | 10/10 | 5280 days | 31% |
Sabine | 10/10 | 5280 days | 31% |
Kevin & Chris | 9/10 | 5300 days | 31% |
davidm239 | 9/10 | 5306 days | 31% |
Margie | 10/10 | 5345 days | 31% |
Agnes | 8/10 | 5346 days | 30% |
Graeme + Jane Ryan | 10/10 | 5357 days | 31% |
Westermann | 10/10 | 5358 days | 31% |
Peter Brown | 10/10 | 5363 days | 31% |
johnandgin | 10/10 | 5367 days | 31% |
Angela | 10/10 | 5368 days | 31% |
T. Timmers | 9/10 | 5381 days | 31% |
Loleit | 10/10 | 5388 days | 31% |
David Valentine | 10/10 | 5389 days | 31% |
Annette Schmitt | 9/10 | 5389 days | 31% |
Jeremy & Sarah Rind | 10/10 | 5394 days | 31% |
Jessica | 9/10 | 5400 days | 31% |
ChristinaO | 10/10 | 5426 days | 31% |
Simon Jones | 9/10 | 5426 days | 31% |
Jerry | 10/10 | 5457 days | 31% |
HairyHaggis | 9/10 | 5487 days | 31% |
Suzanne | 10/10 | 5518 days | 31% |
Traveller Girl | 10/10 | 5671 days | 31% |
Switz | 10/10 | 5685 days | 31% |
DanielGermany | 10/10 | 5693 days | 31% |
CornelissenS | 9/10 | 5718 days | 31% |
Inger | 10/10 | 5719 days | 31% |
Robert | 9/10 | 5732 days | 31% |
Theresa | 9/10 | 5738 days | 31% |
Sue | 9/10 | 5741 days | 31% |
Inger Skov | 10/10 | 5744 days | 31% |
Ruben | 8/10 | 5775 days | 30% |
Claire | 10/10 | 5787 days | 31% |
C Digby | 9/10 | 5791 days | 31% |
Adam | 10/10 | 5832 days | 31% |
Stephanie Schikora | 10/10 | 5844 days | 31% |
Sue Stewart | 10/10 | 5952 days | 31% |
James Gibbs | 8/10 | 6043 days | 30% |
Helen | 9/10 | 6051 days | 31% |
Menashe | 10/10 | 6071 days | 31% |
George Jeffs | 10/10 | 6080 days | 31% |
Paul Weston | 9/10 | 6094 days | 31% |
Marian Mckinney | 10/10 | 6094 days | 31% |
Charles Price | 8/10 | 6105 days | 30% |
Vicky Elliott | 10/10 | 6112 days | 31% |
Anne Mainwaring | 10/10 | 6120 days | 31% |
Kilsby | 10/10 | 6129 days | 31% |
Dupre | 8/10 | 6170 days | 30% |
dieter | 10/10 | 6189 days | 31% |
Rene Schotvanger | 10/10 | 6303 days | 31% |
Pat Brewster | 10/10 | 6303 days | 31% |
Paul Yacoumis | 10/10 | 6429 days | 31% |
Sandra | 10/10 | 6438 days | 31% |
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.
-3.96% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 46 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 | -3.90% |
198 | -3.92% |
199 | -3.94% |
200 | -3.96% |
201 | -3.98% |
202 | -4.00% |
203 | -4.02% |
… | … |
0.83% 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.