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

73 Valid Reviews

The Harbour Tourist Park Oamaru experience has a total of 75 reviews. There are 73 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 73 valid reviews, the experience has 1 face-to-face review collected during interviews by our team.

Below is the distribution of ratings for the 73 valid reviews:

Rating Count Percentage
10/10 25
34%
9/10 19
26%
8/10 13
18%
7/10 8
11%
6/10 6
8%
5/10 1
1%
4/10 0
0%
3/10 1
1%
2/10 0
0%
1/10 0
0%

85.62% Average

The raw data average (mean) for all the Harbour Tourist Park Oamaru valid reviews is 85.62% and is based on 73 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

87.08%

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
Joanne 6/10 139 days 96.94 100%
Stefan Miedzinski 10/10 139 days 96.94 100%
Flo 9/10 167 days 95.58 99%
Siggi &Brian 9/10 198 days 93.79 97%
Marilli 8/10 229 days 91.69 94%
Mel 9/10 259 days 89.37 92%
helen reeve 8/10 290 days 86.67 89%
Melinda Pyke 9/10 320 days 83.77 86%
S Weslake 7/10 473 days 64.55 65%
Peacock 8/10 473 days 64.55 65%
sand.sarit 10/10 473 days 64.55 65%
Kat 9/10 504 days 59.75 60%
Ben H 10/10 504 days 59.75 60%
Mark Lindeman 10/10 532 days 55.15 55%
Eversons 10/10 532 days 55.15 55%
Nick Cartmell 6/10 537 days true 65.17 66%
Suzanne Wijsman 10/10 540 days 53.79 54%
Joe Trigg 10/10 642 days 37.52 36%
Phil and Mel Rowson 10/10 643 days 37.37 36%
Howard Morris 9/10 656 days 35.54 34%
Michael Taing 9/10 657 days 35.4 34%
Yasmin Tisdall 10/10 678 days 32.55 31%
Nathan Lal 10/10 736 days 25.42 23%
Jane 9/10 779 days 20.82 18%
Eric Lau 3/10 826 days 14.98 12%
Janet Pentelow 9/10 830 days 16.13 13%
Jessica Holmes 8/10 835 days 15.71 13%
Harriet Smith 10/10 862 days 13.6 10%
Valeska Lauer 10/10 869 days 13.09 10%
Kati Behrendt 10/10 875 days 12.67 9%
Trent O'Keeffe 9/10 918 days 9.96 7%
Erich Brueggermann 8/10 926 days 9.53 6%
Walter Neff 9/10 928 days 9.42 6%
Rebecca Lindsey 9/10 928 days 9.42 6%
Sylvie Martel 10/10 947 days 8.47 5%
P Rhodes 8/10 957 days 8.02 4%
Rima 10/10 967 days 7.6 4%
Marie Bittmann 9/10 989 days 6.78 3%
Mike Guest 8/10 1007 days 6.23 3%
Lyle Walker 10/10 1028 days 5.71 2%
Jim MacDiarmid 8/10 1112 days 4.98 1%
Rawiri johnston 8/10 1112 days 4.98 1%
Eileen Teo 10/10 1112 days 4.98 1%
Jenny Sharp 7/10 1112 days 4.98 1%
Kathy Hart 10/10 1173 days 4.89 1%
Markus Grau 6/10 1173 days 4.89 1%
Julian Minnis 10/10 1185 days 4.88 1%
Marian K 9/10 1190 days 4.87 1%
Chadd Holland 7/10 1205 days 4.85 1%
Matthew Francisco 10/10 1223 days 4.82 1%
Diana Worwood 7/10 1230 days 4.82 1%
Mallory Lopez 10/10 1237 days 4.81 1%
Lay Tyng Chan 6/10 1258 days 4.78 1%
Clint waters 9/10 1294 days 4.73 1%
veda wills 7/10 1294 days 4.73 1%
Zhao Lu 10/10 1294 days 4.73 1%
Andy Bell 9/10 1325 days 4.68 1%
Rebecca Hope 9/10 1366 days 4.63 1%
Juan Gomez 6/10 1373 days 4.62 1%
Amy Taylor 8/10 1493 days 4.45 1%
Jessie Karsif 10/10 1498 days 4.45 1%
Nicole 8/10 1515 days 4.42 1%
Moira Moroney 10/10 1530 days 4.4 1%
AusCampa 6/10 1539 days 4.39 1%
Erica b 7/10 1569 days 4.35 1%
Mike Gornall 7/10 1600 days 4.31 0%
John Drake 5/10 1615 days 4.29 0%
Gethin Pearson 8/10 1621 days 4.28 0%
Kimberley Garrod 8/10 1667 days 4.22 0%
Bjorn Privat 7/10 1681 days 4.2 0%
Todd MacFarlane 10/10 1690 days 4.18 0%
Bert Snel 9/10 1690 days 4.18 0%
Matt Newby 9/10 1934 days 3.85 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

-2.10% 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 105 days. Adjustments are according to the following table.

Days Adjustment
102 -2.04%
103 -2.06%
104 -2.08%
105 -2.10%
106 -2.12%
107 -2.14%
108 -2.16%

Final Ranking Score

85%

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.

Love Christchurch