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
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
79.49%
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 | 520 days |  |
68.58 | 100% |
| J P Schurer | 7/10 | 520 days | |
68.58 | 100% |
| Dries | 9/10 | 560 days | |
60.43 | 88% |
| Jasmine Rogers | 10/10 | 573 days | |
57.81 | 84% |
| Sophie | 10/10 | 580 days | |
56.43 | 82% |
| Nicholas Strozza | 8/10 | 613 days | |
50.18 | 73% |
| Jill Stebbing | 9/10 | 836 days | |
18.76 | 26% |
| Lothen | 8/10 | 857 days | |
16.77 | 23% |
| Lea Watterson | 9/10 | 879 days | |
14.87 | 21% |
| James Esele | 7/10 | 933 days | |
10.99 | 15% |
| Philipp | 2/10 | 941 days | |
9.46 | 13% |
| Coralie Ambrosino | 8/10 | 1199 days | |
5.83 | 7% |
| Christoph | 10/10 | 1202 days | |
5.82 | 7% |
| Fanny DeBon | 8/10 | 1300 days | |
5.66 | 7% |
| Hubert | 10/10 | 1310 days | |
5.65 | 7% |
| Sagi | 2/10 | 1581 days | |
4.68 | 5% |
| Henrik Suefke | 10/10 | 1599 days | |
5.17 | 6% |
| Kiernan Matthew | 7/10 | 1604 days | |
5.16 | 6% |
| Alexis Redor | 9/10 | 1608 days | |
5.16 | 6% |
| Lars Borgaa | 4/10 | 1617 days | |
4.84 | 6% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 1911 days | 3.61 | 4% | |
| Glenn Surzur | 4/10 | 1938 days | |
4.35 | 5% |
| Michael Walker | 10/10 | 1944 days | |
4.6 | 5% |
| Lorraine Walker | 9/10 | 1944 days | |
4.6 | 5% |
| Michael Nolan | 10/10 | 1970 days | 3.8 | 4% | |
| Jim Woodruff | 10/10 | 1970 days | 3.8 | 4% | |
| Lis Bon | 10/10 | 2001 days | 3.76 | 4% | |
| Liam Day | 10/10 | 2018 days | |
4.48 | 5% |
| Auger | 9/10 | 2039 days | |
4.45 | 5% |
| Auger | 9/10 | 2039 days | |
4.45 | 5% |
| C Schaap | 8/10 | 2043 days | |
4.44 | 5% |
| Marjo Cousijn | 9/10 | 2049 days | |
4.43 | 5% |
| gareth williams | 5/10 | 2093 days | 3.63 | 4% | |
| Dagette | 8/10 | 2093 days | 3.63 | 4% | |
| Wright | 10/10 | 2311 days | |
4.0 | 4% |
| Emma Bagguley | 4/10 | 2314 days | |
3.76 | 4% |
| Hazel & Alan Damerell | 10/10 | 2318 days | |
3.99 | 4% |
| Michael & Rosemary Smith | 9/10 | 2322 days | |
3.98 | 4% |
| Koster | 10/10 | 2322 days | |
3.98 | 4% |
| John A Jerome | 6/10 | 2322 days | |
3.98 | 4% |
| Katrawa | 5/10 | 2329 days | |
3.97 | 4% |
| Jensen Bresbenbeek | 7/10 | 2399 days | |
3.86 | 4% |
| Rebecca & Hugh Small | 5/10 | 2408 days | |
3.84 | 4% |
| Steve | 3/10 | 2412 days | |
3.55 | 4% |
| topsy08 | 7/10 | 2642 days | 2.88 | 3% | |
| Gunter | 9/10 | 2656 days | |
3.43 | 4% |
| Tim Laurent | 5/10 | 2664 days | |
3.42 | 4% |
| Keith Ogley | 6/10 | 2667 days | |
3.42 | 4% |
| Lynda Hutchins | 10/10 | 2667 days | |
3.42 | 4% |
| Louise van der Hyden | 4/10 | 2671 days | |
3.21 | 3% |
| Katie Mitchell | 9/10 | 2673 days | 2.84 | 3% | |
| Gerhard | 8/10 | 2674 days | |
3.4 | 4% |
| Kasten | 8/10 | 2675 days | |
3.4 | 4% |
| C P Lawrence | 4/10 | 2677 days | |
3.2 | 3% |
| Bucher Weruer | 9/10 | 2677 days | |
3.4 | 4% |
| Naomi Kosteaman | 9/10 | 2677 days | |
3.4 | 4% |
| Rian Bach | 5/10 | 2679 days | |
3.4 | 4% |
| Josef & Christine Evers | 8/10 | 2682 days | |
3.39 | 4% |
| Frank Schedler | 5/10 | 2684 days | |
3.39 | 4% |
| Gerd Pagel | 7/10 | 2686 days | |
3.38 | 4% |
| Charlie | 9/10 | 2687 days | |
3.38 | 4% |
| Dana Pagliarini | 5/10 | 2689 days | |
3.38 | 4% |
| Andy Martin | 8/10 | 2690 days | |
3.38 | 4% |
| Julia | 5/10 | 2693 days | |
3.37 | 4% |
| Doris Neuber | 7/10 | 2700 days | |
3.36 | 4% |
| Teknik151 | 4/10 | 2701 days | 2.6 | 2% | |
| Warris2500 | 4/10 | 2885 days | 2.37 | 2% | |
| Versteeg | 7/10 | 2959 days | |
2.94 | 3% |
| Victoria Slater | 6/10 | 3012 days | |
2.85 | 3% |
| Bowness | 10/10 | 3025 days | |
2.83 | 3% |
| David B | 9/10 | 3033 days | |
2.81 | 3% |
| Sievers | 9/10 | 3041 days | |
2.8 | 3% |
| Don & Alice | 9/10 | 3042 days | |
2.8 | 3% |
| Amanda Iavarone | 10/10 | 3044 days | |
2.8 | 3% |
| Sheila Morgan | 10/10 | 3047 days | |
2.79 | 3% |
| Wilbert Germ | 9/10 | 3051 days | |
2.78 | 3% |
| Ronny | 6/10 | 3052 days | |
2.78 | 3% |
| Annette Schmitt | 4/10 | 3060 days | |
2.61 | 2% |
| Annie | 7/10 | 3060 days | |
2.77 | 3% |
| Nadine Schaee | 6/10 | 3063 days | |
2.76 | 3% |
| Terry Phillips | 8/10 | 3063 days | |
2.76 | 3% |
| Chance McGuire | 10/10 | 3066 days | 2.3 | 2% | |
| Richard Pearson | 6/10 | 3076 days | |
2.74 | 3% |
| cees juffermans | 3/10 | 3079 days | |
2.53 | 2% |
| wenerz | 1/10 | 3113 days | |
2.35 | 2% |
| Werner Zuis | 1/10 | 3113 days | |
2.35 | 2% |
| alasiac | 10/10 | 3128 days | |
2.66 | 2% |
| Mark Jenkins | 5/10 | 3136 days | |
2.64 | 2% |
| Silvana Thom | 10/10 | 3138 days | |
2.64 | 2% |
| Alexis De Wilde | 7/10 | 3138 days | |
2.64 | 2% |
| Cyriel Schacken | 7/10 | 3138 days | |
2.64 | 2% |
| Simon Bartholomew | 10/10 | 3140 days | |
2.64 | 2% |
| Marcel Schleinkcfer | 10/10 | 3140 days | |
2.64 | 2% |
| Thorben Thede | 9/10 | 3140 days | |
2.64 | 2% |
| Roma | 9/10 | 3151 days | |
2.62 | 2% |
| brianp | 8/10 | 3244 days | |
2.47 | 2% |
| Rose and Jess Damon and Esler | 6/10 | 3281 days | 2.01 | 2% | |
| OliverG1 | 9/10 | 3360 days | |
2.28 | 2% |
| Anji Sprinks | 8/10 | 3369 days | |
2.26 | 2% |
| Ger | 6/10 | 3370 days | |
2.26 | 2% |
| JanW | 8/10 | 3384 days | |
2.24 | 2% |
| Ian | 8/10 | 3396 days | 1.85 | 1% | |
| Tatjane | 2/10 | 3403 days | |
1.99 | 1% |
| ChristineM | 10/10 | 3405 days | |
2.2 | 2% |
| SebastianGermany1 | 9/10 | 3407 days | |
2.2 | 2% |
| Paul | 9/10 | 3415 days | |
2.19 | 2% |
| SiegfriedL | 10/10 | 3427 days | |
2.17 | 2% |
| purplekat99 | 9/10 | 3462 days | 1.76 | 1% | |
| Klaus | 7/10 | 3763 days | |
1.61 | 1% |
| Volders | 10/10 | 3765 days | |
1.61 | 1% |
| Dot & Gordon Quaid | 9/10 | 3779 days | 1.32 | 1% | |
| Roger & Margaret | 8/10 | 3786 days | |
1.58 | 1% |
| John Howlett | 7/10 | 3788 days | |
1.57 | 1% |
| Dupre | 7/10 | 3841 days | |
1.49 | 1% |
| Paul Cowie | 9/10 | 3847 days | |
1.48 | 1% |
| Floren | 9/10 | 3861 days | |
1.45 | 1% |
| Killerblow | 10/10 | 3870 days | 1.2 | 0% | |
| Lisbeth Johansson | 8/10 | 3974 days | |
1.27 | 0% |
| TeamFlorida | 10/10 | 4109 days | |
1.05 | 0% |
| John Beirne | 10/10 | 4126 days | |
1.02 | 0% |
| Pete | 9/10 | 4126 days | |
1.02 | 0% |
| Anne | 8/10 | 4126 days | |
1.02 | 0% |
| Anna | 9/10 | 4131 days | |
1.01 | 0% |
| Mitch | 8/10 | 4137 days | |
1.0 | 0% |
| Ian | 9/10 | 4154 days | |
0.97 | 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
-7.08% Adjustment
There may be an adjustment if an experience hasn't received any reviews within the last 60 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 364 days.
The Oamaru Blue Penguin Colony experience has been adjusted for 354 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 351 | -7.02% |
| 352 | -7.04% |
| 353 | -7.06% |
| 354 | -7.08% |
| 355 | -7.10% |
| 356 | -7.12% |
| 357 | -7.14% |
| … | … |
Final Ranking Score
72%
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.