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 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

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

78.39%

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 1941 days 93%
J P Schurer 7/10 1941 days 93%
Dries 9/10 1981 days 100%
Jasmine Rogers 10/10 1994 days 99%
Sophie 10/10 2001 days 99%
Nicholas Strozza 8/10 2034 days 91%
Jill Stebbing 9/10 2257 days 82%
Lothen 8/10 2278 days 77%
Lea Watterson 9/10 2300 days 80%
James Esele 7/10 2354 days 69%
Philipp 2/10 2362 days 55%
Coralie Ambrosino 8/10 2620 days 56%
Christoph 10/10 2623 days 59%
Fanny DeBon 8/10 2721 days 50%
Hubert 10/10 2731 days 52%
Sagi 2/10 3002 days 24%
Henrik Suefke 10/10 3020 days 33%
Kiernan Matthew 7/10 3025 days 29%
Alexis Redor 9/10 3029 days 33%
Lars Borgaa 4/10 3038 days 24%
Mette, Bo, Viktor & Olivia Seligmann 4/10 3332 days 9%
Glenn Surzur 4/10 3359 days 8%
Michael Walker 10/10 3365 days 11%
Lorraine Walker 9/10 3365 days 11%
Michael Nolan 10/10 3391 days 10%
Jim Woodruff 10/10 3391 days 10%
Lis Bon 10/10 3422 days 8%
Liam Day 10/10 3439 days 6%
Auger 9/10 3460 days 5%
Auger 9/10 3460 days 5%
C Schaap 8/10 3464 days 4%
Marjo Cousijn 9/10 3470 days 4%
gareth williams 5/10 3514 days 0%
Dagette 8/10 3514 days 1%
Wright 10/10 3732 days 26%
Emma Bagguley 4/10 3735 days 19%
Hazel & Alan Damerell 10/10 3739 days 26%
Michael & Rosemary Smith 9/10 3743 days 26%
Koster 10/10 3743 days 26%
John A Jerome 6/10 3743 days 20%
Katrawa 5/10 3750 days 19%
Jensen Bresbenbeek 7/10 3820 days 23%
Rebecca & Hugh Small 5/10 3829 days 19%
Steve 3/10 3833 days 18%
topsy08 7/10 4063 days 23%
Gunter 9/10 4077 days 26%
Tim Laurent 5/10 4085 days 19%
Keith Ogley 6/10 4088 days 20%
Lynda Hutchins 10/10 4088 days 26%
Louise van der Hyden 4/10 4092 days 19%
Katie Mitchell 9/10 4094 days 26%
Gerhard 8/10 4095 days 24%
Kasten 8/10 4096 days 24%
C P Lawrence 4/10 4098 days 19%
Bucher Weruer 9/10 4098 days 26%
Naomi Kosteaman 9/10 4098 days 26%
Rian Bach 5/10 4100 days 19%
Josef & Christine Evers 8/10 4103 days 24%
Frank Schedler 5/10 4105 days 19%
Gerd Pagel 7/10 4107 days 23%
Charlie 9/10 4108 days 26%
Dana Pagliarini 5/10 4110 days 19%
Andy Martin 8/10 4111 days 24%
Julia 5/10 4114 days 19%
Doris Neuber 7/10 4121 days 23%
Teknik151 4/10 4122 days 19%
Warris2500 4/10 4306 days 19%
Versteeg 7/10 4380 days 23%
Victoria Slater 6/10 4433 days 20%
Bowness 10/10 4446 days 26%
David B 9/10 4454 days 26%
Sievers 9/10 4462 days 26%
Don & Alice 9/10 4463 days 26%
Amanda Iavarone 10/10 4465 days 26%
Sheila Morgan 10/10 4468 days 26%
Wilbert Germ 9/10 4472 days 26%
Ronny 6/10 4473 days 20%
Annette Schmitt 4/10 4481 days 19%
Annie 7/10 4481 days 23%
Nadine Schaee 6/10 4484 days 20%
Terry Phillips 8/10 4484 days 24%
Chance McGuire 10/10 4487 days 26%
Richard Pearson 6/10 4497 days 20%
cees juffermans 3/10 4500 days 18%
wenerz 1/10 4534 days 17%
Werner Zuis 1/10 4534 days 17%
alasiac 10/10 4549 days 26%
Mark Jenkins 5/10 4557 days 19%
Silvana Thom 10/10 4559 days 26%
Alexis De Wilde 7/10 4559 days 23%
Cyriel Schacken 7/10 4559 days 23%
Simon Bartholomew 10/10 4561 days 26%
Marcel Schleinkcfer 10/10 4561 days 26%
Thorben Thede 9/10 4561 days 26%
Roma 9/10 4572 days 26%
brianp 8/10 4665 days 24%
Rose and Jess Damon and Esler 6/10 4702 days 20%
OliverG1 9/10 4781 days 26%
Anji Sprinks 8/10 4790 days 24%
Ger 6/10 4791 days 20%
JanW 8/10 4805 days 24%
Ian 8/10 4817 days 24%
Tatjane 2/10 4825 days 18%
ChristineM 10/10 4826 days 26%
SebastianGermany1 9/10 4828 days 26%
Paul 9/10 4837 days 26%
SiegfriedL 10/10 4848 days 26%
purplekat99 9/10 4883 days 26%
Klaus 7/10 5184 days 23%
Volders 10/10 5186 days 26%
Dot & Gordon Quaid 9/10 5200 days 26%
Roger & Margaret 8/10 5207 days 24%
John Howlett 7/10 5209 days 23%
Dupre 7/10 5262 days 23%
Paul Cowie 9/10 5268 days 26%
Floren 9/10 5282 days 26%
Killerblow 10/10 5291 days 26%
Lisbeth Johansson 8/10 5395 days 24%
TeamFlorida 10/10 5530 days 26%
John Beirne 10/10 5547 days 26%
Pete 9/10 5547 days 26%
Anne 8/10 5547 days 24%
Anna 9/10 5552 days 26%
Mitch 8/10 5558 days 24%
Ian 9/10 5575 days 26%

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

-2.78% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 92 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 -2.74%
198 -2.75%
199 -2.77%
200 -2.78%
201 -2.79%
202 -2.81%
203 -2.82%

Final Ranking Score

76%

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.