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

88.47%

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 10/10 174 days 95.2 95%
Dorothy and Graham Glen 10/10 323 days true 100.16 100%
Lars Grosse 10/10 544 days true 63.73 63%
Harald Ludtke 4/10 563 days true 56.33 56%
Rob and Nicole 8/10 593 days true 53.92 53%
Elke Paul 10/10 617 days true 49.45 49%
Chloe 5/10 993 days true 7.98 7%
Corinna Fallenbuchel 8/10 1377 days true 5.54 5%
Richard 10/10 1545 days 4.38 4%
Julie Robinson 10/10 1682 days true 5.04 4%
Ene Pold 9/10 1689 days true 5.02 4%
Andrea Hiemer 10/10 1702 days true 5.0 4%
Claudia 10/10 1729 days true 4.96 4%
Jill Fischer 9/10 2032 days 3.72 3%
Jim and JoAnn Harllee 8/10 2128 days true 4.3 3%
Brasier 9/10 2403 days true 3.85 3%
Melanie Mathiak 10/10 2409 days true 3.84 3%
Domroes 10/10 2418 days true 3.83 3%
Carel 8/10 2423 days true 3.82 3%
Herbert 10/10 2439 days true 3.79 3%
JBunn 10/10 2457 days 3.13 2%
Dorthe 2/10 2489 days true 3.34 3%
Helle Thomsen 10/10 2504 days true 3.68 3%
Henrick Lund 8/10 2750 days true 3.28 2%
Marcel Camsch 9/10 2755 days true 3.27 2%
LandJ 6/10 2763 days 2.72 2%
Bert Opdam 9/10 2773 days true 3.24 2%
Marieke and Bert-Jan 9/10 2779 days true 3.23 2%
Jackie Morris 9/10 2782 days true 3.23 2%
Montys 10/10 2914 days 2.51 2%
Marcia & Bruce 8/10 3118 days true 2.67 2%
Ingrid Zell 8/10 3119 days true 2.67 2%
Marcus Kippner 9/10 3119 days true 2.67 2%
John Helle 7/10 3149 days true 2.62 2%
Harmann Volker 8/10 3150 days true 2.62 2%
Chidlebyte 10/10 3156 days 2.18 1%
Jessica 7/10 3161 days true 2.6 2%
E.M. Prideaux 10/10 3170 days true 2.59 2%
Jennifer Templeton 9/10 3173 days true 2.58 2%
sels 10/10 3218 days 2.09 1%
Decuq 8/10 3229 days true 2.49 2%
Suzanne 9/10 3279 days 2.01 1%
Thomas1646 10/10 3469 days true 2.1 1%
Frank 10/10 3479 days true 2.08 1%
Max 10/10 3481 days true 2.08 1%
Jana 10/10 3481 days true 2.08 1%
Anton 4/10 3485 days true 1.95 1%
Tolsten 8/10 3504 days true 2.04 1%
Claudia 9/10 3546 days true 1.97 1%
Ria 9/10 3849 days true 1.47 1%
Christian 8/10 3849 days true 1.47 1%
Maria Fahlander 10/10 3852 days true 1.47 1%
Sanne 8/10 3855 days true 1.46 1%
Volders 9/10 3855 days true 1.46 1%
Tessa McCormick 9/10 3859 days true 1.46 1%
Gabriel Faber 9/10 3937 days true 1.33 1%
Schranger 8/10 4199 days true 0.9 0%
Fenke 7/10 4204 days true 0.89 0%
Michaela 10/10 4216 days true 0.87 0%
Berke 10/10 4227 days true 0.85 0%
Rolf Kruger 8/10 4240 days true 0.83 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

-3.20% 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 364 days.

The Penguin Place experience has been adjusted for 160 days. Adjustments are according to the following table.

Days Adjustment
157 -3.14%
158 -3.16%
159 -3.18%
160 -3.20%
161 -3.22%
162 -3.24%
163 -3.26%

Final Ranking Score

85%

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.