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

97.82%

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 10/10 334 days 82.32 100%
Mietta Feery 10/10 1377 days 4.45 5%
Susie Dietz 10/10 1428 days 4.35 5%
Valentine de Beer 9/10 1709 days true 3.8 5%
Stephan Kirchenbaur 9/10 1730 days true 3.76 5%
Cecile Seramis 8/10 1741 days true 3.55 4%
Hannes Puediger 10/10 1783 days true 3.65 4%
Virgil Spruit 8/10 1820 days true 3.4 4%
Emma 9/10 2100 days 3.03 4%
Manuela Opprecht 10/10 2140 days 2.95 4%
Amanda Williams 10/10 2220 days 2.8 3%
Nica Georgiana 10/10 2493 days 2.26 3%
Ali Mitchell 10/10 2494 days 2.26 3%
sebastien gairaud 10/10 2494 days 2.26 3%
Lara Mroseck 8/10 2523 days true 2.1 3%
Robert Geissler 10/10 2523 days true 2.21 3%
Ken 10/10 2921 days 1.43 2%
Nigel&Annette Greaves 10/10 2921 days 1.43 2%
Rolf Zwahlen 10/10 2928 days true 1.41 2%
joke 8/10 3549 days true 0.19 0%
Michael Howat 10/10 3552 days true 0.19 0%
Veronica Warren 9/10 3552 days true 0.19 0%
Tyson Burnett 10/10 3563 days true 0.17 0%
Nicolas 10/10 3563 days true 0.17 0%
Christine Wirth 9/10 3581 days true 0.14 0%
Seifert 10/10 3582 days true 0.13 0%
stowie 10/10 3590 days 0.12 0%
efusco 10/10 3590 days 0.12 0%
Mark 10/10 3590 days 0.12 0%
Ulric 8/10 3949 days true 0.0 0%
janden 10/10 4001 days true 0.0 0%
Jane 9/10 4017 days 0.0 0%
Kimberly Skyes 8/10 4024 days true 0.0 0%
Jenny Davies 8/10 4027 days true 0.0 0%
MichaelS1 9/10 4277 days true 0.0 0%
JeremyE 8/10 4279 days true 0.0 0%
LucyT 9/10 4279 days true 0.0 0%
Lynn White 9/10 4287 days 0.0 0%
Greg18 10/10 4292 days 0.0 0%
SebastianGermany1 8/10 4296 days true 0.0 0%
John 7/10 4302 days true 0.0 0%
Prentner 10/10 4341 days true 0.0 0%
Anke 8/10 4611 days true 0.0 0%
purplekat99 10/10 4626 days 0.0 0%
Richard Anthony 9/10 4648 days true 0.0 0%
Claire Masling 9/10 4661 days true 0.0 0%
Carrie Cook 10/10 4673 days true 0.0 0%
Stephanie 10/10 4702 days true 0.0 0%
Tanya 10/10 4704 days true 0.0 0%
Malena 8/10 4738 days true 0.0 0%
Andy Chapman 8/10 4863 days true 0.0 0%
Stefan 10/10 4982 days true 0.0 0%
Deloraine 10/10 4998 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

-4.07% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 43 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 -4.01%
198 -4.03%
199 -4.05%
200 -4.07%
201 -4.09%
202 -4.11%
203 -4.13%

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.