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 Harbour Tourist Park Oamaru.

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

Harbour Tourist Park Oamaru

Valid Reviews

71 Valid Reviews

The Harbour Tourist Park Oamaru experience has a total of 73 reviews. There are 71 valid reviews that are included when calculating the ranking score and 2 invalid reviews 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.

Within these 71 valid reviews, the experience has 1 face-to-face review collected during interviews by our team.

Below is the distribution of ratings for the 71 valid reviews:

Rating Count Percentage
10/10 24
34%
9/10 19
27%
8/10 13
18%
7/10 8
11%
6/10 5
7%
5/10 1
1%
4/10 0
0%
3/10 1
1%
2/10 0
0%
1/10 0
0%

85.77% Average

The raw data average (mean) for all the Harbour Tourist Park Oamaru valid reviews is 85.77% and is based on 71 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

Weighted Average

88.33%

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
Flo 9/10 16 days 99.96 100%
Siggi &Brian 9/10 47 days 99.65 100%
Marilli 8/10 78 days 99.04 99%
Mel 9/10 108 days 98.15 98%
helen reeve 8/10 139 days 96.94 97%
Melinda Pyke 9/10 169 days 95.47 95%
S Weslake 7/10 322 days 83.57 83%
Peacock 8/10 322 days 83.57 83%
sand.sarit 10/10 322 days 83.57 83%
Kat 9/10 353 days 80.25 79%
Ben H 10/10 353 days 80.25 79%
Mark Lindeman 10/10 381 days 77.0 76%
Eversons 10/10 381 days 77.0 76%
Nick Cartmell 6/10 386 days true 91.67 91%
Suzanne Wijsman 10/10 389 days 76.02 75%
Joe Trigg 10/10 491 days 61.8 60%
Phil and Mel Rowson 10/10 492 days 61.64 60%
Howard Morris 9/10 505 days 59.59 58%
Michael Taing 9/10 506 days 59.43 58%
Yasmin Tisdall 10/10 527 days 55.99 54%
Nathan Lal 10/10 585 days 46.22 44%
Jane 9/10 628 days 39.56 37%
Eric Lau 3/10 675 days 29.99 27%
Janet Pentelow 9/10 679 days 32.42 30%
Jessica Holmes 8/10 684 days 31.77 29%
Harriet Smith 10/10 711 days 28.37 25%
Valeska Lauer 10/10 718 days 27.52 24%
Kati Behrendt 10/10 724 days 26.81 24%
Trent O'Keeffe 9/10 767 days 22.05 19%
Erich Brueggermann 8/10 775 days 21.23 18%
Walter Neff 9/10 776 days 21.13 18%
Rebecca Lindsey 9/10 776 days 21.13 18%
Sylvie Martel 10/10 796 days 19.17 16%
P Rhodes 8/10 806 days 18.23 15%
Rima 10/10 816 days 17.33 14%
Marie Bittmann 9/10 837 days 15.55 12%
Mike Guest 8/10 856 days 14.05 10%
Lyle Walker 10/10 877 days 12.53 9%
Jim MacDiarmid 8/10 960 days 7.89 4%
Rawiri johnston 8/10 960 days 7.89 4%
Eileen Teo 10/10 960 days 7.89 4%
Jenny Sharp 7/10 961 days 7.85 4%
Kathy Hart 10/10 1021 days 5.87 2%
Markus Grau 6/10 1022 days 5.84 2%
Julian Minnis 10/10 1034 days 5.59 2%
Marian K 9/10 1039 days 5.5 2%
Chadd Holland 7/10 1054 days 5.27 1%
Matthew Francisco 10/10 1072 days 5.08 1%
Diana Worwood 7/10 1079 days 5.04 1%
Mallory Lopez 10/10 1086 days 5.01 1%
Lay Tyng Chan 6/10 1107 days 4.98 1%
Clint waters 9/10 1142 days 4.94 1%
veda wills 7/10 1142 days 4.94 1%
Zhao Lu 10/10 1142 days 4.94 1%
Andy Bell 9/10 1173 days 4.89 1%
Rebecca Hope 9/10 1215 days 4.84 1%
Juan Gomez 6/10 1222 days 4.83 1%
Amy Taylor 8/10 1342 days 4.66 1%
Jessie Karsif 10/10 1347 days 4.65 1%
Nicole 8/10 1364 days 4.63 1%
Moira Moroney 10/10 1379 days 4.61 1%
AusCampa 6/10 1387 days 4.6 1%
Erica b 7/10 1417 days 4.56 1%
Mike Gornall 7/10 1448 days 4.52 0%
John Drake 5/10 1464 days 4.49 0%
Gethin Pearson 8/10 1470 days 4.49 0%
Kimberley Garrod 8/10 1516 days 4.42 0%
Bjorn Privat 7/10 1530 days 4.4 0%
Todd MacFarlane 10/10 1538 days 4.39 0%
Bert Snel 9/10 1538 days 4.39 0%
Matt Newby 9/10 1783 days 4.06 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 Harbour Tourist Park Oamaru experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-0.10% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Harbour Tourist Park Oamaru 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 Harbour Tourist Park Oamaru experience has been adjusted for 5 days. Adjustments are according to the following table.

Days Adjustment
2 -0.04%
3 -0.06%
4 -0.08%
5 -0.10%
6 -0.12%
7 -0.14%
8 -0.16%

Final Ranking Score

88%

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.