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 Otago Central Rail Trail.

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

Otago Central Rail Trail

Valid Reviews

27 Valid Reviews

The Otago Central Rail Trail experience has a total of 28 reviews. There are 27 valid reviews that are included when calculating the ranking score and 1 invalid review 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 27 valid reviews:

Rating Count Percentage
10/10 11
41%
9/10 9
33%
8/10 4
15%
7/10 2
7%
6/10 1
4%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

90.00% Average

The raw data average (mean) for all the Otago Central Rail Trail valid reviews is 90.00% and is based on 27 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

21 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 27 valid reviews, the experience has 21 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 21 face-to-face reviews:

Rating Count Percentage
10/10 8
38%
9/10 9
43%
8/10 2
10%
7/10 1
5%
6/10 1
5%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

90.48% Average

The raw data average (mean) for all the Otago Central Rail Trail face-to-face reviews is 90.48% and is based on 21 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

90.97%

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 Face-to-Face Weight Relative Weight
Rob Manson 9/10 849 days true 17.51 100%
Alan West 10/10 908 days true 12.65 69%
Rebecca Wharton 9/10 1195 days true 5.84 26%
Don Wallis 8/10 1570 days true 5.22 23%
Helen and Ogi 10/10 1923 days true 4.64 19%
Bill and Noreen 9/10 1936 days true 4.62 19%
Loesje 10/10 2030 days 3.72 13%
AnthonyWaygood 10/10 2214 days 3.47 12%
Karl Brachtl 9/10 2284 days true 4.05 15%
AndreF 7/10 2396 days 3.22 10%
cruisysue 8/10 2488 days 3.09 9%
Extremo 10/10 2549 days 3.01 9%
Margaret & Donald Finlayson 7/10 2622 days true 3.49 12%
Celia Murphy 10/10 2659 days true 3.43 11%
Friedli Manuela 10/10 2664 days true 3.42 11%
victoriauk 9/10 2914 days true 3.01 9%
Chris & Rob 10/10 2938 days true 2.97 8%
jenniferuk 9/10 2945 days true 2.96 8%
Agnes 6/10 2985 days true 2.89 8%
Kevin F 10/10 2988 days true 2.89 8%
R Bakker 9/10 2997 days true 2.87 8%
Maureen Pearman 10/10 3007 days true 2.86 8%
Yasmin Abrahams 8/10 3008 days true 2.86 8%
Bob and Carol Duncan 10/10 3026 days true 2.83 8%
SonjaG 9/10 3374 days true 2.25 4%
jaejacobson 8/10 3507 days 1.7 0%
Vicky Elliott 9/10 3751 days true 1.63 0%

Adjustments

No Adjustment

Several adjustments to the weighted average may be added to improve relevancy and credibility. Otago Central Rail Trail does not meet the criteria for any of these adjustments to apply.

Final Ranking Score

91%

The final ranking score once 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.