Ranking Score Explained

Hey, 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 Oamaru Blue Penguin Colony.

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.

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Cymen Crick

Rankers Owner

Oamaru Blue Penguin Colony

Valid Reviews

125 Valid Reviews

The Oamaru Blue Penguin Colony experience has a total of 126 reviews. There are 125 valid reviews that are included when calculating the ranking score and 1 invalid review 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 125 valid reviews:

Rating Count Percentage
10/10 28
22%
9/10 30
24%
8/10 19
15%
7/10 15
12%
6/10 8
6%
5/10 9
7%
4/10 9
7%
3/10 2
2%
2/10 3
2%
1/10 2
2%

76.00% Average

The raw data average (mean) for all the Oamaru Blue Penguin Colony valid reviews is 76.00% and is based on 125 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

109 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 125 valid reviews, the experience has 109 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 109 face-to-face reviews:

Rating Count Percentage
10/10 23
21%
9/10 27
25%
8/10 17
16%
7/10 14
13%
6/10 7
6%
5/10 8
7%
4/10 6
6%
3/10 2
2%
2/10 3
3%
1/10 2
2%

75.87% Average

The raw data average (mean) for all the Oamaru Blue Penguin Colony face-to-face reviews is 75.87% and is based on 109 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

80.22%

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
Dina Schurer 7/10 2946 days 97%
J P Schurer 7/10 2946 days 97%
Dries 9/10 2986 days 100%
Jasmine Rogers 10/10 2999 days 100%
Sophie 10/10 3006 days 99%
Nicholas Strozza 8/10 3039 days 95%
Jill Stebbing 9/10 3262 days 80%
Lothen 8/10 3283 days 78%
Lea Watterson 9/10 3305 days 77%
James Esele 7/10 3359 days 69%
Philipp 2/10 3367 days 33%
Coralie Ambrosino 8/10 3625 days 53%
Christoph 10/10 3628 days 54%
Fanny DeBon 8/10 3726 days 46%
Hubert 10/10 3736 days 46%
Sagi 2/10 4007 days 12%
Henrik Suefke 10/10 4025 days 25%
Kiernan Matthew 7/10 4030 days 23%
Alexis Redor 9/10 4034 days 24%
Lars Borgaa 4/10 4043 days 15%
Mette, Bo, Viktor & Olivia Seligmann 4/10 4337 days 1%
Glenn Surzur 4/10 4364 days 0%
Michael Walker 10/10 4370 days 0%
Lorraine Walker 9/10 4370 days 0%
Michael Nolan 10/10 4396 days 37%
Jim Woodruff 10/10 4396 days 37%
Lis Bon 10/10 4427 days 37%
Liam Day 10/10 4444 days 37%
Auger 9/10 4465 days 36%
Auger 9/10 4465 days 36%
C Schaap 8/10 4469 days 36%
Marjo Cousijn 9/10 4475 days 36%
gareth williams 5/10 4519 days 28%
Dagette 8/10 4519 days 36%
Wright 10/10 4737 days 37%
Emma Bagguley 4/10 4740 days 24%
Hazel & Alan Damerell 10/10 4744 days 37%
Michael & Rosemary Smith 9/10 4748 days 36%
Koster 10/10 4748 days 37%
John A Jerome 6/10 4748 days 31%
Katrawa 5/10 4755 days 28%
Jensen Bresbenbeek 7/10 4825 days 34%
Rebecca & Hugh Small 5/10 4834 days 28%
Steve 3/10 4838 days 20%
topsy08 7/10 5068 days 34%
Gunter 9/10 5082 days 36%
Tim Laurent 5/10 5090 days 28%
Keith Ogley 6/10 5093 days 31%
Lynda Hutchins 10/10 5093 days 37%
Louise van der Hyden 4/10 5097 days 24%
Katie Mitchell 9/10 5099 days 36%
Gerhard 8/10 5100 days 36%
Kasten 8/10 5101 days 36%
C P Lawrence 4/10 5103 days 24%
Bucher Weruer 9/10 5103 days 36%
Naomi Kosteaman 9/10 5103 days 36%
Rian Bach 5/10 5105 days 28%
Josef & Christine Evers 8/10 5108 days 36%
Frank Schedler 5/10 5110 days 28%
Gerd Pagel 7/10 5112 days 34%
Charlie 9/10 5113 days 36%
Dana Pagliarini 5/10 5115 days 28%
Andy Martin 8/10 5116 days 36%
Julia 5/10 5119 days 28%
Doris Neuber 7/10 5126 days 34%
Teknik151 4/10 5127 days 24%
Warris2500 4/10 5311 days 24%
Versteeg 7/10 5385 days 34%
Victoria Slater 6/10 5438 days 31%
Bowness 10/10 5451 days 37%
David B 9/10 5459 days 36%
Sievers 9/10 5467 days 36%
Don & Alice 9/10 5468 days 36%
Amanda Iavarone 10/10 5470 days 37%
Sheila Morgan 10/10 5473 days 37%
Wilbert Germ 9/10 5477 days 36%
Ronny 6/10 5478 days 31%
Annette Schmitt 4/10 5486 days 24%
Annie 7/10 5486 days 34%
Nadine Schaee 6/10 5489 days 31%
Terry Phillips 8/10 5489 days 36%
Chance McGuire 10/10 5492 days 37%
Richard Pearson 6/10 5502 days 31%
cees juffermans 3/10 5505 days 20%
wenerz 1/10 5539 days 14%
Werner Zuis 1/10 5539 days 14%
alasiac 10/10 5554 days 37%
Mark Jenkins 5/10 5562 days 28%
Silvana Thom 10/10 5564 days 37%
Alexis De Wilde 7/10 5564 days 34%
Cyriel Schacken 7/10 5564 days 34%
Simon Bartholomew 10/10 5566 days 37%
Marcel Schleinkcfer 10/10 5566 days 37%
Thorben Thede 9/10 5566 days 36%
Roma 9/10 5577 days 36%
brianp 8/10 5670 days 36%
Rose and Jess Damon and Esler 6/10 5707 days 31%
OliverG1 9/10 5786 days 36%
Anji Sprinks 8/10 5795 days 36%
Ger 6/10 5796 days 31%
JanW 8/10 5810 days 36%
Ian 8/10 5821 days 36%
Tatjane 2/10 5829 days 16%
ChristineM 10/10 5831 days 37%
SebastianGermany1 9/10 5833 days 36%
Paul 9/10 5841 days 36%
SiegfriedL 10/10 5853 days 37%
purplekat99 9/10 5888 days 36%
Klaus 7/10 6189 days 34%
Volders 10/10 6191 days 37%
Dot & Gordon Quaid 9/10 6205 days 36%
Roger & Margaret 8/10 6212 days 36%
John Howlett 7/10 6214 days 34%
Dupre 7/10 6267 days 34%
Paul Cowie 9/10 6273 days 36%
Floren 9/10 6287 days 36%
Killerblow 10/10 6295 days 37%
Lisbeth Johansson 8/10 6400 days 36%
TeamFlorida 10/10 6535 days 37%
John Beirne 10/10 6552 days 37%
Pete 9/10 6552 days 36%
Anne 8/10 6552 days 36%
Anna 9/10 6557 days 36%
Mitch 8/10 6563 days 36%
Ian 9/10 6580 days 36%

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 Oamaru Blue Penguin Colony experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.15% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 52 days. However the Oamaru Blue Penguin Colony 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 Oamaru Blue Penguin Colony experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.09%
198 -4.11%
199 -4.13%
200 -4.15%
201 -4.17%
202 -4.20%
203 -4.22%

Balancing Adjustment

4.25% Adjustment

Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.

You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.

We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.

Final Ranking Score

80%

The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.