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||812 days||100%|
|craig hardy||1/10||1541 days||17%|
|Viv stefadouros||9/10||1695 days||21%|
|kiruthika vijayakumar||1/10||1725 days||15%|
|Ellie Pask||1/10||1786 days||15%|
|Justine Langero||10/10||1909 days||19%|
|SR SR||1/10||2029 days||13%|
|Tom Anders||9/10||2118 days||17%|
|Estelle Coquard||7/10||2123 days||15%|
|Kathrin Redl||6/10||2138 days||14%|
|Emily Noyd||8/10||2140 days||16%|
|Maxim Motheus||8/10||2176 days||15%|
|Emil Black Christian||9/10||2176 days||16%|
|Charn Tiebtienrat||1/10||2211 days||11%|
|peter salfrais||1/10||2211 days||11%|
|Pierre Villaume-Odile||7/10||2234 days||14%|
|Brendan Carton||1/10||2304 days||11%|
|Calvin Shi||1/10||2517 days||9%|
|pat rao||1/10||2545 days||9%|
|Justin Little||1/10||2576 days||8%|
|Mischelle Mills||1/10||2791 days||7%|
|ilove totravel||5/10||2852 days||7%|
|Anna Sternberg||8/10||2884 days||8%|
|Jan Kerkhoff||9/10||2887 days||8%|
|Daniel Garcia Dezgado||8/10||2892 days||8%|
|Maria = Moller Hansen||9/10||2894 days||8%|
|Corban Hill||1/10||2942 days||5%|
|Cyndyl Richards||1/10||3034 days||5%|
|John Stroup||1/10||3034 days||5%|
|Epi Gates||6/10||3217 days||4%|
|Andé Moreira||1/10||3248 days||3%|
|Stella Thoben||7/10||3250 days||4%|
|Anna Niesl||7/10||3254 days||4%|
|Kristina Wells||1/10||3307 days||2%|
|alastair maceachern||1/10||3307 days||2%|
|Lisa Ruhfus||10/10||3622 days||0%|
|Ashley Mckenney||8/10||3687 days||5%|
|Isabella Abele||7/10||3704 days||5%|
|Lennart Lundberg||7/10||3950 days||5%|
|Claudia Jackson and Geoffroy van Roelenbosch||7/10||3962 days||5%|
|Chrissy Crebas||6/10||3964 days||4%|
|Beth and Daisy||8/10||3967 days||5%|
|Tim Wright||8/10||4005 days||5%|
|Emma Wilkinson||8/10||4006 days||5%|
|Christine T||8/10||4338 days||5%|
|Marcio Moretti||9/10||4354 days||5%|
|Hokang Kim||3/10||4434 days||4%|
|Lindsay Brown||5/10||4444 days||4%|
|Claudia Schmidt||9/10||4794 days||5%|
|Vicky Elliott||9/10||5089 days||5%|
|Reina Lohaye||9/10||5093 days||5%|
|Rob Boston||1/10||5226 days||4%|
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 47 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.
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.