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 Naked Bus.
If you have any questions or comments about our ranking score calculation please get in touch at email@example.com. 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:
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.
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:
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.
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.
|Angela Hills Boughey||10/10||399 days||100%|
|craig hardy||1/10||1129 days||5%|
|Viv stefadouros||9/10||1282 days||6%|
|kiruthika vijayakumar||1/10||1313 days||4%|
|Ellie Pask||1/10||1374 days||4%|
|Justine Langero||10/10||1496 days||6%|
|SR SR||1/10||1617 days||4%|
|Tom Anders||9/10||1705 days||5%|
|Estelle Coquard||7/10||1710 days||5%|
|Kathrin Redl||6/10||1725 days||4%|
|Emily Noyd||8/10||1727 days||5%|
|Maxim Motheus||8/10||1763 days||5%|
|Emil Black Christian||9/10||1763 days||5%|
|Charn Tiebtienrat||1/10||1799 days||3%|
|peter salfrais||1/10||1799 days||3%|
|Pierre Villaume-Odile||7/10||1821 days||4%|
|Brendan Carton||1/10||1891 days||3%|
|Calvin Shi||1/10||2105 days||3%|
|pat rao||1/10||2133 days||3%|
|Justin Little||1/10||2164 days||3%|
|Mischelle Mills||1/10||2378 days||2%|
|ilove totravel||5/10||2439 days||3%|
|Anna Sternberg||8/10||2471 days||3%|
|Jan Kerkhoff||9/10||2474 days||3%|
|Daniel Garcia Dezgado||8/10||2479 days||3%|
|Maria = Moller Hansen||9/10||2481 days||3%|
|Corban Hill||1/10||2529 days||2%|
|Cyndyl Richards||1/10||2621 days||2%|
|John Stroup||1/10||2621 days||2%|
|Epi Gates||6/10||2804 days||2%|
|Andé Moreira||1/10||2835 days||1%|
|Stella Thoben||7/10||2837 days||2%|
|Anna Niesl||7/10||2841 days||2%|
|Kristina Wells||1/10||2894 days||1%|
|alastair maceachern||1/10||2894 days||1%|
|Lisa Ruhfus||10/10||3209 days||1%|
|Ashley Mckenney||8/10||3274 days||1%|
|Isabella Abele||7/10||3291 days||1%|
|Lennart Lundberg||7/10||3537 days||0%|
|Claudia Jackson and Geoffroy van Roelenbosch||7/10||3549 days||0%|
|Chrissy Crebas||6/10||3551 days||0%|
|Beth and Daisy||8/10||3554 days||0%|
|Tim Wright||8/10||3592 days||0%|
|Emma Wilkinson||8/10||3593 days||0%|
|Christine T||8/10||3925 days||1%|
|Marcio Moretti||9/10||3941 days||1%|
|Hokang Kim||3/10||4021 days||1%|
|Lindsay Brown||5/10||4031 days||1%|
|Claudia Schmidt||9/10||4382 days||1%|
|Vicky Elliott||9/10||4676 days||1%|
|Reina Lohaye||9/10||4680 days||1%|
|Rob Boston||1/10||4813 days||1%|
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
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.
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 142 days. Adjustments are according to the following table.
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 firstname.lastname@example.org.