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

96.51%

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
Peter Leschev 10/10 392 days 100%
Mietta Feery 10/10 1435 days 6%
Susie Dietz 10/10 1486 days 6%
Valentine de Beer 9/10 1767 days 5%
Stephan Kirchenbaur 9/10 1788 days 5%
Cecile Seramis 8/10 1799 days 5%
Hannes Puediger 10/10 1841 days 5%
Virgil Spruit 8/10 1878 days 4%
Emma 9/10 2158 days 4%
Manuela Opprecht 10/10 2198 days 4%
Amanda Williams 10/10 2278 days 4%
Nica Georgiana 10/10 2551 days 3%
Ali Mitchell 10/10 2552 days 3%
sebastien gairaud 10/10 2552 days 3%
Lara Mroseck 8/10 2581 days 3%
Robert Geissler 10/10 2581 days 3%
Ken 10/10 2979 days 2%
Nigel&Annette Greaves 10/10 2979 days 2%
Rolf Zwahlen 10/10 2986 days 2%
joke 8/10 3607 days 0%
Michael Howat 10/10 3610 days 0%
Veronica Warren 9/10 3610 days 0%
Tyson Burnett 10/10 3621 days 0%
Nicolas 10/10 3621 days 0%
Christine Wirth 9/10 3639 days 0%
Seifert 10/10 3640 days 0%
stowie 10/10 3648 days 0%
efusco 10/10 3648 days 0%
Mark 10/10 3648 days 0%
Ulric 8/10 4007 days 1%
janden 10/10 4059 days 1%
Jane 9/10 4075 days 1%
Kimberly Skyes 8/10 4082 days 1%
Jenny Davies 8/10 4085 days 1%
MichaelS1 9/10 4335 days 1%
JeremyE 8/10 4337 days 1%
LucyT 9/10 4337 days 1%
Lynn White 9/10 4345 days 1%
Greg18 10/10 4350 days 1%
SebastianGermany1 8/10 4354 days 1%
John 7/10 4360 days 1%
Prentner 10/10 4399 days 1%
Anke 8/10 4669 days 1%
purplekat99 10/10 4684 days 1%
Richard Anthony 9/10 4706 days 1%
Claire Masling 9/10 4719 days 1%
Carrie Cook 10/10 4731 days 1%
Stephanie 10/10 4760 days 1%
Tanya 10/10 4762 days 1%
Malena 8/10 4796 days 1%
Andy Chapman 8/10 4921 days 1%
Stefan 10/10 5040 days 1%
Deloraine 10/10 5056 days 1%

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

-4.13% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 48 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The Seal Swim Kaikoura experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.07%
198 -4.09%
199 -4.11%
200 -4.13%
201 -4.15%
202 -4.17%
203 -4.19%

Final Ranking Score

92%

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.