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 Marlborough Sounds Adventure Co.

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

Marlborough Sounds Adventure Co

Valid Reviews

24 Valid Reviews

The Marlborough Sounds Adventure Co experience has a total of 24 valid reviews. There are no 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 24 valid reviews:

Rating Count Percentage
10/10 10
42%
9/10 5
21%
8/10 4
17%
7/10 4
17%
6/10 1
4%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

87.92% Average

The raw data average (mean) for all the Marlborough Sounds Adventure Co valid reviews is 87.92% and is based on 24 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

15 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 24 valid reviews, the experience has 15 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 15 face-to-face reviews:

Rating Count Percentage
10/10 5
33%
9/10 3
20%
8/10 2
13%
7/10 4
27%
6/10 1
7%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

84.67% Average

The raw data average (mean) for all the Marlborough Sounds Adventure Co face-to-face reviews is 84.67% and is based on 15 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

96.48%

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
Happy camper 10/10 172 days 95.31 100%
Lesa 10/10 261 days 89.21 94%
Scott Bradley 10/10 564 days 49.68 52%
Sebastian Reinhardy 6/10 925 days true 11.5 11%
Dupont 8/10 2004 days true 4.51 4%
Sally 9/10 2092 days true 4.36 4%
D Collier 10/10 2376 days true 3.89 3%
Elisabeth 10/10 2385 days true 3.88 3%
megs 10/10 2941 days 2.47 2%
Peter Brown 7/10 3090 days true 2.72 2%
Heather 10/10 3153 days 2.18 1%
sue pentelow 8/10 3153 days 2.18 1%
Joshua Weightman 9/10 3153 days 2.18 1%
neeltjec 7/10 3428 days true 2.16 1%
Martien van Brakel 7/10 3428 days true 2.16 1%
Tiemen 9/10 3448 days true 2.13 1%
Eliott Family 9/10 3506 days true 2.04 1%
Frauke 8/10 3559 days true 1.95 1%
Lubos Hlinovsky 9/10 3789 days 1.31 0%
jahirst 8/10 3810 days 1.28 0%
Renske Tehurne 10/10 3819 days true 1.52 1%
Tamzin 10/10 3842 days true 1.48 1%
Christie H 7/10 3912 days true 1.37 0%
Jansen 10/10 4168 days true 0.95 0%

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 Marlborough Sounds Adventure Co experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-2.80% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Marlborough Sounds Adventure Co 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 364 days.

The Marlborough Sounds Adventure Co experience has been adjusted for 140 days. Adjustments are according to the following table.

Days Adjustment
137 -2.74%
138 -2.76%
139 -2.78%
140 -2.80%
141 -2.82%
142 -2.84%
143 -2.86%

Final Ranking Score

94%

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.