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 Dive Tutukaka.

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.

Cymen Crick's avatar

Cymen Crick

Dive Tutukaka

Valid Reviews

87 Valid Reviews

The Dive Tutukaka experience has a total of 88 reviews. There are 87 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 87 valid reviews:

Rating Count Percentage
10/10 39
45%
9/10 28
32%
8/10 15
17%
7/10 2
2%
6/10 1
1%
5/10 1
1%
4/10 0
0%
3/10 1
1%
2/10 0
0%
1/10 0
0%

90.80% Average

The raw data average (mean) for all the Dive Tutukaka valid reviews is 90.80% and is based on 87 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

72 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 87 valid reviews, the experience has 72 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 72 face-to-face reviews:

Rating Count Percentage
10/10 28
39%
9/10 26
36%
8/10 14
19%
7/10 1
1%
6/10 1
1%
5/10 1
1%
4/10 0
0%
3/10 1
1%
2/10 0
0%
1/10 0
0%

89.86% Average

The raw data average (mean) for all the Dive Tutukaka face-to-face reviews is 89.86% and is based on 72 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

90.85%

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
Barbara McNab 10/10 1539 days 100%
Cherie and Dan 10/10 1879 days 82%
Netta Tyler 10/10 1932 days 79%
Theerada Wongkaew 10/10 1973 days 76%
Gazmira Molina 8/10 2016 days 70%
Jessica Nasstrom 8/10 2023 days 69%
Adeline 8/10 2028 days 69%
Rebecca Pierce 10/10 2055 days 72%
Jane Simmons 10/10 2177 days 65%
Julia Clark 9/10 2244 days 62%
Kristina Breitwieser 10/10 2249 days 61%
Olivier Anciaux 7/10 2262 days 54%
Justine Hoffmann 9/10 2294 days 59%
Ruven Rintelmann 9/10 2299 days 59%
Niels Hoogendooen 8/10 2312 days 54%
Marie Brauherr 10/10 2320 days 58%
Luisa and Hannes 8/10 2324 days 54%
Christian Boudreau 9/10 2342 days 56%
Manuela Opprecht 7/10 2674 days 33%
Damaris Mayer 3/10 2674 days 26%
Sophie Huybrechts 10/10 2716 days 36%
Ally Cook 9/10 2720 days 36%
Jessie Sabine 9/10 3019 days 19%
Katrina Gamby 10/10 3377 days 0%
Sonia Sennane 10/10 3731 days 13%
Melanie Friessen 9/10 3732 days 13%
Barry Baily 10/10 3743 days 13%
Elisabeth 9/10 3752 days 13%
Lotte Foged 8/10 3757 days 12%
Anika 8/10 3758 days 12%
Paul 8/10 3828 days 12%
Elke & Charlotte 9/10 3841 days 13%
Kris Gijbels 9/10 4074 days 13%
Patrick Gloede 10/10 4079 days 13%
Norm and Sky 9/10 4084 days 13%
Roald and Ellen 9/10 4085 days 13%
B Kleven 10/10 4090 days 13%
Ann-Katrine & Sille 10/10 4094 days 13%
Erland Ostberg 8/10 4098 days 12%
Helene Descamps 9/10 4112 days 13%
Heather Deobald 9/10 4114 days 13%
Christina Fischer 6/10 4119 days 8%
Shoe 10/10 4186 days 13%
RobThexton 10/10 4339 days 13%
Martin 9/10 4400 days 13%
cpochin 10/10 4430 days 13%
John Casey 10/10 4442 days 13%
Peter Schmidt 10/10 4461 days 13%
Elisabeth Egerup 10/10 4468 days 13%
Vera Van Schie 10/10 4469 days 13%
Chris Glasg 10/10 4469 days 13%
Klass 9/10 4475 days 13%
Belinda Godhard 9/10 4486 days 13%
Theta 9/10 4489 days 13%
jamesg 9/10 4549 days 13%
Mille Winther 10/10 4562 days 13%
Christine Van Den Berg Michele Imbach 10/10 4574 days 13%
Eilahtan4 10/10 4612 days 13%
NZDiver 10/10 4673 days 13%
Nikki Turner 10/10 4716 days 13%
Christine Dadd 8/10 4783 days 12%
KatieR 10/10 4793 days 13%
Michael Maddams 9/10 4793 days 13%
Russ C 8/10 4795 days 12%
danam 10/10 4797 days 13%
Katy1 9/10 4797 days 13%
StefanieGermany 9/10 4813 days 13%
lannie 9/10 4829 days 13%
AbigailB 10/10 4840 days 13%
ReneeA 10/10 4843 days 13%
Ute 9/10 4847 days 13%
Annika 10/10 4860 days 13%
Salick 9/10 4860 days 13%
Thomas 8/10 4866 days 12%
Prentner 10/10 4876 days 13%
Evi 9/10 4901 days 13%
Limor 8/10 4901 days 12%
Christian 10/10 5011 days 13%
Lee Chapman 10/10 5111 days 13%
Jo and Tony 10/10 5187 days 13%
Lara Gema Conde 5/10 5287 days 8%
Trish 10/10 5524 days 13%
Fran 8/10 5525 days 12%
SueLinsk 10/10 5525 days 13%
Rosemary 9/10 5525 days 13%
Martin Christina 9/10 5531 days 13%
Meike 8/10 5558 days 12%

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 Dive Tutukaka experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-2.74% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 94 days. However the Dive Tutukaka 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 Dive Tutukaka experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -2.70%
198 -2.71%
199 -2.72%
200 -2.74%
201 -2.75%
202 -2.76%
203 -2.78%

Final Ranking Score

88%

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.