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

53 Valid Reviews

The Seal Swim Kaikoura experience has a total of 53 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 53 valid reviews:

Rating Count Percentage
10/10 29
55%
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%

92.83% Average

The raw data average (mean) for all the Seal Swim Kaikoura valid reviews is 92.83% and is based on 53 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 53 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

97.83%

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
Peter Leschev 10/10 55 days 99.52 100%
Mietta Feery 10/10 1098 days 4.99 5%
Susie Dietz 10/10 1149 days 4.89 5%
Valentine de Beer 9/10 1430 days true 4.34 4%
Stephan Kirchenbaur 9/10 1451 days true 4.3 4%
Cecile Seramis 8/10 1462 days true 4.07 4%
Hannes Puediger 10/10 1504 days true 4.2 4%
Virgil Spruit 8/10 1541 days true 3.92 4%
Emma 9/10 1821 days 3.58 4%
Manuela Opprecht 10/10 1861 days 3.5 4%
Amanda Williams 10/10 1941 days 3.34 3%
Nica Georgiana 10/10 2214 days 2.81 3%
Ali Mitchell 10/10 2215 days 2.81 3%
sebastien gairaud 10/10 2215 days 2.81 3%
Lara Mroseck 8/10 2244 days true 2.61 3%
Robert Geissler 10/10 2244 days true 2.75 3%
Ken 10/10 2642 days 1.97 2%
Nigel&Annette Greaves 10/10 2642 days 1.97 2%
Rolf Zwahlen 10/10 2649 days true 1.96 2%
joke 8/10 3270 days true 0.71 1%
Michael Howat 10/10 3273 days true 0.74 1%
Veronica Warren 9/10 3273 days true 0.74 1%
Tyson Burnett 10/10 3284 days true 0.72 1%
Nicolas 10/10 3284 days true 0.72 1%
Christine Wirth 9/10 3302 days true 0.68 1%
Seifert 10/10 3303 days true 0.68 1%
stowie 10/10 3311 days 0.66 1%
efusco 10/10 3311 days 0.66 1%
Mark 10/10 3311 days 0.66 1%
Ulric 8/10 3670 days true 0.0 0%
janden 10/10 3722 days true 0.0 0%
Jane 9/10 3738 days 0.0 0%
Kimberly Skyes 8/10 3745 days true 0.0 0%
Jenny Davies 8/10 3748 days true 0.0 0%
MichaelS1 9/10 3998 days true 0.0 0%
JeremyE 8/10 4000 days true 0.0 0%
LucyT 9/10 4000 days true 0.0 0%
Lynn White 9/10 4008 days 0.0 0%
Greg18 10/10 4013 days 0.0 0%
SebastianGermany1 8/10 4017 days true 0.0 0%
John 7/10 4023 days true 0.0 0%
Prentner 10/10 4062 days true 0.0 0%
Anke 8/10 4332 days true 0.0 0%
purplekat99 10/10 4347 days 0.0 0%
Richard Anthony 9/10 4369 days true 0.0 0%
Claire Masling 9/10 4382 days true 0.0 0%
Carrie Cook 10/10 4394 days true 0.0 0%
Stephanie 10/10 4423 days true 0.0 0%
Tanya 10/10 4425 days true 0.0 0%
Malena 8/10 4459 days true 0.0 0%
Andy Chapman 8/10 4584 days true 0.0 0%
Stefan 10/10 4703 days true 0.0 0%
Deloraine 10/10 4719 days true 0.0 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

-0.78% 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 199 days.

The Seal Swim Kaikoura experience has been adjusted for 39 days. Adjustments are according to the following table.

Days Adjustment
36 -0.72%
37 -0.74%
38 -0.76%
39 -0.78%
40 -0.80%
41 -0.82%
42 -0.84%

Final Ranking Score

97%

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.