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 Penguin Place.

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

Penguin Place

Valid Reviews

61 Valid Reviews

The Penguin Place experience has a total of 61 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 61 valid reviews:

Rating Count Percentage
10/10 24
39%
9/10 15
25%
8/10 14
23%
7/10 3
5%
6/10 1
2%
5/10 1
2%
4/10 2
3%
3/10 0
0%
2/10 1
2%
1/10 0
0%

86.72% Average

The raw data average (mean) for all the Penguin Place valid reviews is 86.72% and is based on 61 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

52 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 61 valid reviews, the experience has 52 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 52 face-to-face reviews:

Rating Count Percentage
10/10 18
35%
9/10 13
25%
8/10 14
27%
7/10 3
6%
6/10 0
0%
5/10 1
2%
4/10 2
4%
3/10 0
0%
2/10 1
2%
1/10 0
0%

85.58% Average

The raw data average (mean) for all the Penguin Place face-to-face reviews is 85.58% and is based on 52 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

91.82%

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
Antony Wilson 10/10 511 days 58.62 100%
Dorothy and Graham Glen 10/10 660 days true 34.99 60%
Lars Grosse 10/10 881 days true 12.26 21%
Harald Ludtke 4/10 900 days true 8.71 15%
Rob and Nicole 8/10 930 days true 8.85 15%
Elke Paul 10/10 954 days true 8.15 14%
Chloe 5/10 1330 days true 3.76 6%
Corinna Fallenbuchel 8/10 1714 days true 3.85 7%
Richard 10/10 1882 days 3.8 6%
Julie Robinson 10/10 2019 days true 3.59 6%
Ene Pold 9/10 2026 days true 3.58 6%
Andrea Hiemer 10/10 2039 days true 3.56 6%
Claudia 10/10 2066 days true 3.52 6%
Jill Fischer 9/10 2369 days 3.06 5%
Jim and JoAnn Harllee 8/10 2465 days true 2.77 5%
Brasier 9/10 2740 days true 2.5 4%
Melanie Mathiak 10/10 2746 days true 2.49 4%
Domroes 10/10 2755 days true 2.47 4%
Carel 8/10 2760 days true 2.34 4%
Herbert 10/10 2776 days true 2.44 4%
JBunn 10/10 2794 days 2.41 4%
Dorthe 2/10 2826 days true 1.77 3%
Helle Thomsen 10/10 2841 days true 2.34 4%
Henrick Lund 8/10 3087 days true 1.87 3%
Marcel Camsch 9/10 3092 days true 1.96 3%
LandJ 6/10 3100 days 1.62 3%
Bert Opdam 9/10 3110 days true 1.93 3%
Marieke and Bert-Jan 9/10 3116 days true 1.92 3%
Jackie Morris 9/10 3119 days true 1.92 3%
Montys 10/10 3251 days 1.72 3%
Marcia & Bruce 8/10 3455 days true 1.34 2%
Ingrid Zell 8/10 3456 days true 1.34 2%
Marcus Kippner 9/10 3456 days true 1.41 2%
John Helle 7/10 3486 days true 1.24 2%
Harmann Volker 8/10 3487 days true 1.29 2%
Chidlebyte 10/10 3493 days 1.35 2%
Jessica 7/10 3498 days true 1.22 2%
E.M. Prideaux 10/10 3507 days true 1.33 2%
Jennifer Templeton 9/10 3510 days true 1.32 2%
sels 10/10 3555 days 1.26 2%
Decuq 8/10 3566 days true 1.18 2%
Suzanne 9/10 3616 days 1.16 2%
Thomas1646 10/10 3806 days true 0.87 1%
Frank 10/10 3816 days true 0.86 1%
Max 10/10 3818 days true 0.86 1%
Jana 10/10 3818 days true 0.86 1%
Anton 4/10 3822 days true 0.67 1%
Tolsten 8/10 3841 days true 0.78 1%
Claudia 9/10 3883 days true 0.76 1%
Ria 9/10 4186 days true 0.3 1%
Christian 8/10 4186 days true 0.28 0%
Maria Fahlander 10/10 4189 days true 0.29 0%
Sanne 8/10 4192 days true 0.27 0%
Volders 9/10 4192 days true 0.29 0%
Tessa McCormick 9/10 4196 days true 0.28 0%
Gabriel Faber 9/10 4274 days true 0.16 0%
Schranger 8/10 4536 days true 0.0 0%
Fenke 7/10 4541 days true 0.0 0%
Michaela 10/10 4553 days true 0.0 0%
Berke 10/10 4564 days true 0.0 0%
Rolf Kruger 8/10 4577 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 Penguin Place experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.98% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Penguin Place 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 Penguin Place experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

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.