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.

Nick Morrison's avatar

Nick Morrison

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

80.23%

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 1468 days 93%
J P Schurer 7/10 1468 days 93%
Dries 9/10 1508 days 100%
Jasmine Rogers 10/10 1521 days 99%
Sophie 10/10 1528 days 99%
Nicholas Strozza 8/10 1561 days 93%
Jill Stebbing 9/10 1784 days 87%
Lothen 8/10 1805 days 82%
Lea Watterson 9/10 1827 days 85%
James Esele 7/10 1881 days 75%
Philipp 2/10 1889 days 62%
Coralie Ambrosino 8/10 2147 days 67%
Christoph 10/10 2150 days 70%
Fanny DeBon 8/10 2248 days 62%
Hubert 10/10 2258 days 65%
Sagi 2/10 2529 days 39%
Henrik Suefke 10/10 2547 days 51%
Kiernan Matthew 7/10 2552 days 47%
Alexis Redor 9/10 2556 days 51%
Lars Borgaa 4/10 2565 days 40%
Mette, Bo, Viktor & Olivia Seligmann 4/10 2859 days 29%
Glenn Surzur 4/10 2886 days 28%
Michael Walker 10/10 2892 days 35%
Lorraine Walker 9/10 2892 days 35%
Michael Nolan 10/10 2918 days 34%
Jim Woodruff 10/10 2918 days 34%
Lis Bon 10/10 2949 days 33%
Liam Day 10/10 2966 days 32%
Auger 9/10 2987 days 31%
Auger 9/10 2987 days 31%
C Schaap 8/10 2991 days 29%
Marjo Cousijn 9/10 2997 days 30%
gareth williams 5/10 3041 days 23%
Dagette 8/10 3041 days 27%
Wright 10/10 3259 days 18%
Emma Bagguley 4/10 3262 days 14%
Hazel & Alan Damerell 10/10 3266 days 18%
Michael & Rosemary Smith 9/10 3270 days 18%
Koster 10/10 3270 days 18%
John A Jerome 6/10 3270 days 15%
Katrawa 5/10 3277 days 14%
Jensen Bresbenbeek 7/10 3347 days 13%
Rebecca & Hugh Small 5/10 3356 days 11%
Steve 3/10 3360 days 10%
topsy08 7/10 3590 days 3%
Gunter 9/10 3604 days 2%
Tim Laurent 5/10 3612 days 1%
Keith Ogley 6/10 3615 days 1%
Lynda Hutchins 10/10 3615 days 2%
Louise van der Hyden 4/10 3619 days 1%
Katie Mitchell 9/10 3621 days 1%
Gerhard 8/10 3622 days 1%
Kasten 8/10 3623 days 1%
C P Lawrence 4/10 3625 days 1%
Bucher Weruer 9/10 3625 days 1%
Naomi Kosteaman 9/10 3625 days 1%
Rian Bach 5/10 3627 days 1%
Josef & Christine Evers 8/10 3630 days 1%
Frank Schedler 5/10 3632 days 1%
Gerd Pagel 7/10 3634 days 1%
Charlie 9/10 3635 days 1%
Dana Pagliarini 5/10 3637 days 0%
Andy Martin 8/10 3638 days 0%
Julia 5/10 3641 days 0%
Doris Neuber 7/10 3648 days 0%
Teknik151 4/10 3649 days 0%
Warris2500 4/10 3832 days 19%
Versteeg 7/10 3906 days 22%
Victoria Slater 6/10 3960 days 20%
Bowness 10/10 3973 days 24%
David B 9/10 3981 days 24%
Sievers 9/10 3989 days 24%
Don & Alice 9/10 3990 days 24%
Amanda Iavarone 10/10 3992 days 24%
Sheila Morgan 10/10 3995 days 24%
Wilbert Germ 9/10 3999 days 24%
Ronny 6/10 4000 days 20%
Annette Schmitt 4/10 4008 days 19%
Annie 7/10 4008 days 22%
Nadine Schaee 6/10 4011 days 20%
Terry Phillips 8/10 4011 days 23%
Chance McGuire 10/10 4014 days 24%
Richard Pearson 6/10 4024 days 20%
cees juffermans 3/10 4027 days 18%
wenerz 1/10 4061 days 17%
Werner Zuis 1/10 4061 days 17%
alasiac 10/10 4076 days 24%
Mark Jenkins 5/10 4084 days 19%
Silvana Thom 10/10 4086 days 24%
Alexis De Wilde 7/10 4086 days 22%
Cyriel Schacken 7/10 4086 days 22%
Simon Bartholomew 10/10 4088 days 24%
Marcel Schleinkcfer 10/10 4088 days 24%
Thorben Thede 9/10 4088 days 24%
Roma 9/10 4099 days 24%
brianp 8/10 4191 days 23%
Rose and Jess Damon and Esler 6/10 4228 days 20%
OliverG1 9/10 4307 days 24%
Anji Sprinks 8/10 4317 days 23%
Ger 6/10 4318 days 20%
JanW 8/10 4332 days 23%
Ian 8/10 4343 days 23%
Tatjane 2/10 4351 days 18%
ChristineM 10/10 4353 days 24%
SebastianGermany1 9/10 4355 days 24%
Paul 9/10 4363 days 24%
SiegfriedL 10/10 4375 days 24%
purplekat99 9/10 4410 days 24%
Klaus 7/10 4711 days 22%
Volders 10/10 4713 days 24%
Dot & Gordon Quaid 9/10 4726 days 24%
Roger & Margaret 8/10 4734 days 23%
John Howlett 7/10 4736 days 22%
Dupre 7/10 4789 days 22%
Paul Cowie 9/10 4795 days 24%
Floren 9/10 4809 days 24%
Killerblow 10/10 4817 days 24%
Lisbeth Johansson 8/10 4921 days 23%
TeamFlorida 10/10 5056 days 24%
John Beirne 10/10 5074 days 24%
Pete 9/10 5074 days 24%
Anne 8/10 5074 days 23%
Anna 9/10 5079 days 24%
Mitch 8/10 5085 days 23%
Ian 9/10 5102 days 24%

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

-4.13% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 49 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 -4.07%
198 -4.09%
199 -4.11%
200 -4.13%
201 -4.15%
202 -4.17%
203 -4.19%

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.