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 Seal Swim Kaikoura.

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

Seal Swim Kaikoura

Valid Reviews

52 Valid Reviews

The Seal Swim Kaikoura experience has a total of 52 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 52 valid reviews:

Rating Count Percentage
10/10 28
54%
9/10 11
21%
8/10 12
23%
7/10 1
2%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

92.69% Average

The raw data average (mean) for all the Seal Swim Kaikoura valid reviews is 92.69% and is based on 52 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

35 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 52 valid reviews, the experience has 35 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 35 face-to-face reviews:

Rating Count Percentage
10/10 14
40%
9/10 8
23%
8/10 12
34%
7/10 1
3%
6/10 0
0%
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 Seal Swim Kaikoura face-to-face reviews is 90.00% and is based on 35 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

94.10%

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
Mietta Feery 10/10 792 days 19.55 100%
Susie Dietz 10/10 843 days 15.06 76%
Valentine de Beer 9/10 1124 days true 5.95 28%
Stephan Kirchenbaur 9/10 1145 days true 5.92 28%
Cecile Seramis 8/10 1156 days true 5.9 28%
Hannes Puediger 10/10 1198 days true 5.83 28%
Virgil Spruit 8/10 1235 days true 5.77 27%
Emma 9/10 1515 days 4.42 20%
Manuela Opprecht 10/10 1555 days 4.37 20%
Amanda Williams 10/10 1635 days 4.26 20%
Nica Georgiana 10/10 1908 days 3.89 18%
Ali Mitchell 10/10 1909 days 3.88 18%
sebastien gairaud 10/10 1909 days 3.88 18%
Lara Mroseck 8/10 1938 days true 4.61 21%
Robert Geissler 10/10 1938 days true 4.61 21%
Ken 10/10 2336 days 3.3 14%
Nigel&Annette Greaves 10/10 2336 days 3.3 14%
Rolf Zwahlen 10/10 2343 days true 3.95 18%
joke 8/10 2964 days true 2.93 13%
Michael Howat 10/10 2967 days true 2.92 13%
Veronica Warren 9/10 2967 days true 2.92 13%
Tyson Burnett 10/10 2978 days true 2.9 12%
Nicolas 10/10 2978 days true 2.9 12%
Christine Wirth 9/10 2996 days true 2.88 12%
Seifert 10/10 2997 days true 2.87 12%
stowie 10/10 3005 days 2.38 10%
efusco 10/10 3005 days 2.38 10%
Mark 10/10 3005 days 2.38 10%
Ulric 8/10 3364 days true 2.27 9%
janden 10/10 3416 days true 2.18 9%
Jane 9/10 3432 days 1.8 7%
Kimberly Skyes 8/10 3439 days true 2.15 8%
Jenny Davies 8/10 3442 days true 2.14 8%
MichaelS1 9/10 3692 days true 1.73 6%
JeremyE 8/10 3694 days true 1.73 6%
LucyT 9/10 3694 days true 1.73 6%
Lynn White 9/10 3702 days 1.43 5%
Greg18 10/10 3707 days 1.42 5%
SebastianGermany1 8/10 3711 days true 1.7 6%
John 7/10 3717 days true 1.69 6%
Prentner 10/10 3756 days true 1.63 6%
Anke 8/10 4026 days true 1.18 3%
purplekat99 10/10 4041 days 0.96 2%
Richard Anthony 9/10 4063 days true 1.12 3%
Claire Masling 9/10 4076 days true 1.1 3%
Carrie Cook 10/10 4088 days true 1.08 3%
Stephanie 10/10 4117 days true 1.03 3%
Tanya 10/10 4119 days true 1.03 3%
Malena 8/10 4153 days true 0.97 2%
Andy Chapman 8/10 4278 days true 0.77 1%
Stefan 10/10 4397 days true 0.57 0%
Deloraine 10/10 4413 days true 0.55 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 Seal Swim Kaikoura experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-7.28% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Seal Swim Kaikoura 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 Seal Swim Kaikoura experience has been adjusted for 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

Final Ranking Score

87%

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.

Love Christchurch