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

79.41%

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
Dina Schurer 7/10 1261 days true 4.25 93%
J P Schurer 7/10 1261 days true 4.25 93%
Dries 9/10 1301 days true 4.6 100%
Jasmine Rogers 10/10 1314 days true 4.57 99%
Sophie 10/10 1321 days true 4.56 99%
Nicholas Strozza 8/10 1354 days true 4.27 93%
Jill Stebbing 9/10 1577 days true 4.06 88%
Lothen 8/10 1598 days true 3.81 83%
Lea Watterson 9/10 1620 days true 3.97 86%
James Esele 7/10 1674 days true 3.52 77%
Philipp 2/10 1682 days true 2.89 63%
Coralie Ambrosino 8/10 1940 days true 3.18 69%
Christoph 10/10 1943 days true 3.34 73%
Fanny DeBon 8/10 2041 days true 2.99 65%
Hubert 10/10 2051 days true 3.13 68%
Sagi 2/10 2322 days true 1.95 42%
Henrik Suefke 10/10 2340 days true 2.56 56%
Kiernan Matthew 7/10 2345 days true 2.32 51%
Alexis Redor 9/10 2349 days true 2.55 55%
Lars Borgaa 4/10 2358 days true 2.0 43%
Mette, Bo, Viktor & Olivia Seligmann 4/10 2652 days 1.54 34%
Glenn Surzur 4/10 2679 days true 1.5 33%
Michael Walker 10/10 2685 days true 1.89 41%
Lorraine Walker 9/10 2685 days true 1.89 41%
Michael Nolan 10/10 2711 days 1.84 40%
Jim Woodruff 10/10 2711 days 1.84 40%
Lis Bon 10/10 2742 days 1.78 39%
Liam Day 10/10 2759 days true 1.74 38%
Auger 9/10 2780 days true 1.7 37%
Auger 9/10 2780 days true 1.7 37%
C Schaap 8/10 2784 days true 1.61 35%
Marjo Cousijn 9/10 2790 days true 1.68 37%
gareth williams 5/10 2834 days 1.29 28%
Dagette 8/10 2834 days 1.52 33%
Wright 10/10 3052 days true 1.17 25%
Emma Bagguley 4/10 3055 days true 0.92 20%
Hazel & Alan Damerell 10/10 3059 days true 1.16 25%
Michael & Rosemary Smith 9/10 3063 days true 1.15 25%
Koster 10/10 3063 days true 1.15 25%
John A Jerome 6/10 3063 days true 0.95 21%
Katrawa 5/10 3070 days true 0.92 20%
Jensen Bresbenbeek 7/10 3140 days true 0.91 20%
Rebecca & Hugh Small 5/10 3149 days true 0.79 17%
Steve 3/10 3153 days true 0.75 16%
topsy08 7/10 3383 days 0.48 10%
Gunter 9/10 3397 days true 0.5 11%
Tim Laurent 5/10 3405 days true 0.39 8%
Keith Ogley 6/10 3408 days true 0.39 9%
Lynda Hutchins 10/10 3408 days true 0.47 10%
Louise van der Hyden 4/10 3412 days true 0.37 8%
Katie Mitchell 9/10 3414 days 0.46 10%
Gerhard 8/10 3415 days true 0.44 10%
Kasten 8/10 3416 days true 0.44 9%
C P Lawrence 4/10 3418 days true 0.36 8%
Bucher Weruer 9/10 3418 days true 0.45 10%
Naomi Kosteaman 9/10 3418 days true 0.45 10%
Rian Bach 5/10 3420 days true 0.36 8%
Josef & Christine Evers 8/10 3423 days true 0.42 9%
Frank Schedler 5/10 3425 days true 0.36 8%
Gerd Pagel 7/10 3427 days true 0.4 9%
Charlie 9/10 3428 days true 0.43 9%
Dana Pagliarini 5/10 3430 days true 0.35 8%
Andy Martin 8/10 3431 days true 0.41 9%
Julia 5/10 3434 days true 0.34 7%
Doris Neuber 7/10 3441 days true 0.37 8%
Teknik151 4/10 3442 days 0.32 7%
Warris2500 4/10 3626 days 0.04 1%
Versteeg 7/10 3700 days true 0.0 0%
Victoria Slater 6/10 3753 days true 0.0 0%
Bowness 10/10 3766 days true 0.0 0%
David B 9/10 3774 days true 0.0 0%
Sievers 9/10 3782 days true 0.0 0%
Don & Alice 9/10 3783 days true 0.0 0%
Amanda Iavarone 10/10 3785 days true 0.0 0%
Sheila Morgan 10/10 3788 days true 0.0 0%
Wilbert Germ 9/10 3792 days true 0.0 0%
Ronny 6/10 3793 days true 0.0 0%
Annette Schmitt 4/10 3801 days true 0.0 0%
Annie 7/10 3801 days true 0.0 0%
Nadine Schaee 6/10 3804 days true 0.0 0%
Terry Phillips 8/10 3804 days true 0.0 0%
Chance McGuire 10/10 3807 days 0.0 0%
Richard Pearson 6/10 3817 days true 0.0 0%
cees juffermans 3/10 3820 days true 0.0 0%
wenerz 1/10 3854 days true 0.0 0%
Werner Zuis 1/10 3854 days true 0.0 0%
alasiac 10/10 3869 days true 0.0 0%
Mark Jenkins 5/10 3877 days true 0.0 0%
Silvana Thom 10/10 3879 days true 0.0 0%
Alexis De Wilde 7/10 3879 days true 0.0 0%
Cyriel Schacken 7/10 3879 days true 0.0 0%
Simon Bartholomew 10/10 3881 days true 0.0 0%
Marcel Schleinkcfer 10/10 3881 days true 0.0 0%
Thorben Thede 9/10 3881 days true 0.0 0%
Roma 9/10 3892 days true 0.0 0%
brianp 8/10 3985 days true 0.0 0%
Rose and Jess Damon and Esler 6/10 4022 days 0.0 0%
OliverG1 9/10 4101 days true 0.0 0%
Anji Sprinks 8/10 4110 days true 0.0 0%
Ger 6/10 4111 days true 0.0 0%
JanW 8/10 4125 days true 0.0 0%
Ian 8/10 4137 days 0.0 0%
Tatjane 2/10 4145 days true 0.0 0%
ChristineM 10/10 4146 days true 0.0 0%
SebastianGermany1 9/10 4148 days true 0.0 0%
Paul 9/10 4157 days true 0.0 0%
SiegfriedL 10/10 4168 days true 0.0 0%
purplekat99 9/10 4203 days 0.0 0%
Klaus 7/10 4504 days true 0.0 0%
Volders 10/10 4506 days true 0.0 0%
Dot & Gordon Quaid 9/10 4520 days 0.0 0%
Roger & Margaret 8/10 4527 days true 0.0 0%
John Howlett 7/10 4529 days true 0.0 0%
Dupre 7/10 4582 days true 0.0 0%
Paul Cowie 9/10 4588 days true 0.0 0%
Floren 9/10 4602 days true 0.0 0%
Killerblow 10/10 4611 days 0.0 0%
Lisbeth Johansson 8/10 4715 days true 0.0 0%
TeamFlorida 10/10 4850 days true 0.0 0%
John Beirne 10/10 4867 days true 0.0 0%
Pete 9/10 4867 days true 0.0 0%
Anne 8/10 4867 days true 0.0 0%
Anna 9/10 4872 days true 0.0 0%
Mitch 8/10 4878 days true 0.0 0%
Ian 9/10 4895 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 Oamaru Blue Penguin Colony experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-2.02% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 124 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 -1.99%
198 -2.00%
199 -2.01%
200 -2.02%
201 -2.03%
202 -2.04%
203 -2.05%

Final Ranking Score

77%

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.