Ranking Score Explained

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 info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.

Nick Morrison's avatar

Nick Morrison

Rankers owner

Naked Bus

Valid Reviews

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.

Face-to-Face Reviews

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.

Weighted Average

64.14%

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 10/10 812 days 100%
craig hardy 1/10 1541 days 17%
Viv stefadouros 9/10 1695 days 21%
Suzanne 1/10 1725 days 15%
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%
unhappycustomer 3/10 2303 days 11%
Brendan Carton 1/10 2304 days 11%
Funk 7/10 2425 days 12%
Calvin Shi 1/10 2517 days 9%
pat rao 1/10 2545 days 9%
Justin Little 1/10 2576 days 8%
Focalvisions 7/10 2576 days 11%
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%
Gassat 9/10 2905 days 8%
Felix 4/10 2931 days 6%
Corban Hill 1/10 2942 days 5%
Cyndyl Richards 1/10 3034 days 5%
John Stroup 1/10 3034 days 5%
paulweig 8/10 3217 days 4%
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%
hirini2371 1/10 3368 days 2%
Lisa Ruhfus 10/10 3622 days 0%
Danpaley 1/10 3673 days 4%
Ashley Mckenney 8/10 3687 days 5%
Isabella Abele 7/10 3704 days 5%
smileyducky 1/10 3795 days 4%
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%
Katny 8/10 4007 days 5%
SandyS 8/10 4038 days 5%
Katy 8/10 4277 days 5%
Christine T 8/10 4338 days 5%
Marcio Moretti 9/10 4354 days 5%
ohSNAP 3/10 4372 days 4%
Hokang Kim 3/10 4434 days 4%
Lindsay Brown 5/10 4444 days 4%
confederatesoldier 1/10 4464 days 4%
Annabel 1/10 4495 days 4%
miniappleses 8/10 4495 days 5%
Ozhan 8/10 4718 days 5%
Deahne 8/10 4728 days 5%
Yuko 9/10 4728 days 5%
Craig 10/10 4735 days 5%
Constance 7/10 4744 days 5%
Kristen 8/10 4751 days 5%
frank 5/10 4752 days 4%
Grace 9/10 4783 days 5%
Claudia Schmidt 9/10 4794 days 5%
Helga 6/10 4852 days 4%
Sophie 10/10 4875 days 5%
Carmen 10/10 4930 days 5%
Wolfgang 7/10 4950 days 5%
Anke 8/10 5028 days 5%
Hernando 9/10 5054 days 5%
Klaus 7/10 5058 days 5%
Corinne 8/10 5062 days 5%
Yumi 7/10 5071 days 5%
Lena 8/10 5071 days 5%
Vicky Elliott 9/10 5089 days 5%
Sophia 10/10 5091 days 5%
Reina Lohaye 9/10 5093 days 5%
Iain 9/10 5125 days 5%
Gav 6/10 5125 days 4%
Anneli 6/10 5126 days 4%
Davinia 9/10 5153 days 5%
Rob Boston 1/10 5226 days 4%
Will 9/10 5394 days 5%
clairekidd 9/10 5407 days 5%
Silke 9/10 5415 days 5%

Adjustments

Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.

Sample Size Adjustment

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.

Recent Reviews Adjustment

-4.11% 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.

Days Adjustment
197 -4.04%
198 -4.07%
199 -4.09%
200 -4.11%
201 -4.13%
202 -4.15%
203 -4.17%

Final Ranking Score

60%

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 info@rankers.co.nz.