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 Naked Bus.
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.
95 Valid Reviews
The Naked Bus experience has a total of 101 reviews. There are 95 valid reviews that are included when calculating the ranking score and 6 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 95 valid reviews:
Rating | Count | Percentage | |
---|---|---|---|
10/10 | 7 |
|
7% |
9/10 | 18 |
|
19% |
8/10 | 20 |
|
21% |
7/10 | 13 |
|
14% |
6/10 | 6 |
|
6% |
5/10 | 3 |
|
3% |
4/10 | 1 |
|
1% |
3/10 | 3 |
|
3% |
2/10 | 0 |
|
0% |
1/10 | 24 |
|
25% |
60.11% Average
The raw data average (mean) for all the Naked Bus valid reviews is 60.11% and is based on 95 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
58 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 95 valid reviews, the experience has 58 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 58 face-to-face reviews:
Rating | Count | Percentage | |
---|---|---|---|
10/10 | 6 |
|
10% |
9/10 | 16 |
|
28% |
8/10 | 17 |
|
29% |
7/10 | 11 |
|
19% |
6/10 | 5 |
|
9% |
5/10 | 2 |
|
3% |
4/10 | 1 |
|
2% |
3/10 | 0 |
|
0% |
2/10 | 0 |
|
0% |
1/10 | 0 |
|
0% |
79.48% Average
The raw data average (mean) for all the Naked Bus face-to-face reviews is 79.48% and is based on 58 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
69.50%
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 |
---|---|---|---|
Angela Hills Boughey | 10/10 | 1938 days | 100% |
craig hardy | 1/10 | 2667 days | 28% |
Viv stefadouros | 9/10 | 2821 days | 63% |
Suzanne | 1/10 | 2851 days | 25% |
kiruthika vijayakumar | 1/10 | 2851 days | 25% |
Ellie Pask | 1/10 | 2912 days | 24% |
Justine Langero | 10/10 | 3035 days | 55% |
SR SR | 1/10 | 3155 days | 20% |
Tom Anders | 9/10 | 3244 days | 46% |
Estelle Coquard | 7/10 | 3249 days | 43% |
Kathrin Redl | 6/10 | 3264 days | 39% |
Emily Noyd | 8/10 | 3266 days | 45% |
Maxim Motheus | 8/10 | 3302 days | 43% |
Emil Black Christian | 9/10 | 3302 days | 44% |
Charn Tiebtienrat | 1/10 | 3337 days | 17% |
peter salfrais | 1/10 | 3337 days | 17% |
Pierre Villaume-Odile | 7/10 | 3360 days | 39% |
unhappycustomer | 3/10 | 3429 days | 21% |
Brendan Carton | 1/10 | 3430 days | 16% |
Funk | 7/10 | 3551 days | 32% |
Calvin Shi | 1/10 | 3643 days | 12% |
pat rao | 1/10 | 3671 days | 12% |
Justin Little | 1/10 | 3702 days | 11% |
Focalvisions | 7/10 | 3702 days | 26% |
Mischelle Mills | 1/10 | 3917 days | 8% |
ilove totravel | 5/10 | 3978 days | 12% |
Anna Sternberg | 8/10 | 4010 days | 15% |
Jan Kerkhoff | 9/10 | 4013 days | 15% |
Daniel Garcia Dezgado | 8/10 | 4018 days | 14% |
Maria = Moller Hansen | 9/10 | 4020 days | 15% |
Gassat | 9/10 | 4031 days | 14% |
Felix | 4/10 | 4057 days | 9% |
Corban Hill | 1/10 | 4068 days | 5% |
Cyndyl Richards | 1/10 | 4160 days | 4% |
John Stroup | 1/10 | 4160 days | 4% |
paulweig | 8/10 | 4343 days | 1% |
Epi Gates | 6/10 | 4343 days | 1% |
Andé Moreira | 1/10 | 4374 days | 0% |
Stella Thoben | 7/10 | 4376 days | 0% |
Anna Niesl | 7/10 | 4380 days | 19% |
Kristina Wells | 1/10 | 4433 days | 8% |
alastair maceachern | 1/10 | 4433 days | 8% |
hirini2371 | 1/10 | 4494 days | 8% |
Lisa Ruhfus | 10/10 | 4748 days | 21% |
Danpaley | 1/10 | 4799 days | 8% |
Ashley Mckenney | 8/10 | 4813 days | 20% |
Isabella Abele | 7/10 | 4830 days | 19% |
smileyducky | 1/10 | 4921 days | 8% |
Lennart Lundberg | 7/10 | 5076 days | 19% |
Claudia Jackson and Geoffroy van Roelenbosch | 7/10 | 5088 days | 19% |
Chrissy Crebas | 6/10 | 5090 days | 18% |
Beth and Daisy | 8/10 | 5093 days | 20% |
Tim Wright | 8/10 | 5131 days | 20% |
Emma Wilkinson | 8/10 | 5132 days | 20% |
Katny | 8/10 | 5133 days | 20% |
SandyS | 8/10 | 5164 days | 20% |
Katy | 8/10 | 5403 days | 20% |
Christine T | 8/10 | 5464 days | 20% |
Marcio Moretti | 9/10 | 5480 days | 21% |
ohSNAP | 3/10 | 5498 days | 11% |
Hokang Kim | 3/10 | 5560 days | 11% |
Lindsay Brown | 5/10 | 5570 days | 16% |
confederatesoldier | 1/10 | 5590 days | 8% |
Annabel | 1/10 | 5621 days | 8% |
miniappleses | 8/10 | 5621 days | 20% |
Ozhan | 8/10 | 5844 days | 20% |
Deahne | 8/10 | 5854 days | 20% |
Yuko | 9/10 | 5854 days | 21% |
Craig | 10/10 | 5861 days | 21% |
Constance | 7/10 | 5870 days | 19% |
Kristen | 8/10 | 5877 days | 20% |
frank | 5/10 | 5878 days | 16% |
Grace | 9/10 | 5909 days | 21% |
Claudia Schmidt | 9/10 | 5920 days | 21% |
Helga | 6/10 | 5978 days | 18% |
Sophie | 10/10 | 6002 days | 21% |
Carmen | 10/10 | 6056 days | 21% |
Wolfgang | 7/10 | 6076 days | 19% |
Anke | 8/10 | 6154 days | 20% |
Hernando | 9/10 | 6180 days | 21% |
Klaus | 7/10 | 6184 days | 19% |
Corinne | 8/10 | 6188 days | 20% |
Yumi | 7/10 | 6197 days | 19% |
Lena | 8/10 | 6197 days | 20% |
Vicky Elliott | 9/10 | 6215 days | 21% |
Sophia | 10/10 | 6217 days | 21% |
Reina Lohaye | 9/10 | 6219 days | 21% |
Iain | 9/10 | 6251 days | 21% |
Gav | 6/10 | 6251 days | 18% |
Anneli | 6/10 | 6252 days | 18% |
Davinia | 9/10 | 6279 days | 21% |
Rob Boston | 1/10 | 6352 days | 8% |
Will | 9/10 | 6520 days | 21% |
clairekidd | 9/10 | 6533 days | 21% |
Silke | 9/10 | 6541 days | 21% |
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 Naked Bus 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 Naked Bus 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 Naked Bus 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% |
… | … |
9.96% 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.
75%
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.