Hey, 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.
Harbour Tourist Park Oamaru
Valid Reviews
99 Valid Reviews
The Harbour Tourist Park Oamaru experience has a total of 104 reviews. There are 99 valid reviews that are included when calculating the ranking score and 5 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 99 valid reviews, the experience has 1 face-to-face review collected during interviews by our team.
Below is the distribution of ratings for the 99 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 33 |
|
33% |
| 9/10 | 25 |
|
25% |
| 8/10 | 19 |
|
19% |
| 7/10 | 9 |
|
9% |
| 6/10 | 7 |
|
7% |
| 5/10 | 5 |
|
5% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
84.85% Average
The raw data average (mean) for all the Harbour Tourist Park Oamaru valid reviews is 84.85% and is based on 99 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
81.56%
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 |
|---|---|---|---|
| Rory | 5/10 | 21 days | 76% |
| Sue Peggs | 10/10 | 21 days | 100% |
| Symen | 7/10 | 266 days | 89% |
| Ian Garcia | 5/10 | 295 days | 72% |
| Ulli | 5/10 | 326 days | 71% |
| Pippin | 8/10 | 357 days | 91% |
| Anna | 10/10 | 357 days | 93% |
| Dan | 8/10 | 448 days | 87% |
| Marie Perret | 6/10 | 448 days | 76% |
| Varneia | 9/10 | 571 days | 80% |
| Liz | 9/10 | 601 days | 78% |
| Julia | 10/10 | 691 days | 73% |
| Kirsty Speers | 10/10 | 752 days | 67% |
| Sarah | 8/10 | 752 days | 66% |
| Colin | 10/10 | 813 days | 62% |
| Sara | 5/10 | 1543 days | 6% |
| Katie | 8/10 | 1787 days | 4% |
| Anton | 9/10 | 1787 days | 4% |
| Leona | 8/10 | 1787 days | 4% |
| Jennifer Hebert | 10/10 | 1818 days | 4% |
| Jennifer Hebert | 10/10 | 1818 days | 4% |
| Tea | 9/10 | 1818 days | 4% |
| Beth Carlton | 10/10 | 1848 days | 4% |
| ShaneandJosiegoat | 9/10 | 1879 days | 4% |
| ShaneandJosiegoat | 9/10 | 1879 days | 4% |
| EmStems | 8/10 | 1909 days | 4% |
| Joanne | 6/10 | 2093 days | 3% |
| Stefan Miedzinski | 10/10 | 2093 days | 4% |
| Flo | 9/10 | 2121 days | 3% |
| Siggi &Brian | 9/10 | 2152 days | 3% |
| Marilli | 8/10 | 2183 days | 3% |
| Mel | 9/10 | 2213 days | 3% |
| helen reeve | 8/10 | 2244 days | 3% |
| Melinda Pyke | 9/10 | 2274 days | 3% |
| S Weslake | 7/10 | 2427 days | 3% |
| Peacock | 8/10 | 2427 days | 3% |
| sand.sarit | 10/10 | 2427 days | 3% |
| Kat | 9/10 | 2458 days | 3% |
| Ben H | 10/10 | 2458 days | 3% |
| Mark Lindeman | 10/10 | 2486 days | 3% |
| Eversons | 10/10 | 2486 days | 3% |
| Nick Cartmell | 6/10 | 2491 days | 1% |
| Suzanne Wijsman | 10/10 | 2494 days | 3% |
| Joe Trigg | 10/10 | 2596 days | 3% |
| Phil and Mel Rowson | 10/10 | 2597 days | 3% |
| Howard Morris | 9/10 | 2610 days | 3% |
| Michael Taing | 9/10 | 2611 days | 2% |
| Yasmin Tisdall | 10/10 | 2632 days | 2% |
| Nathan Lal | 10/10 | 2690 days | 2% |
| Jane | 9/10 | 2733 days | 2% |
| Eric Lau | 3/10 | 2780 days | 1% |
| Janet Pentelow | 9/10 | 2784 days | 2% |
| Jessica Holmes | 8/10 | 2789 days | 2% |
| Harriet Smith | 10/10 | 2816 days | 2% |
| Valeska Lauer | 10/10 | 2823 days | 2% |
| Kati Behrendt | 10/10 | 2829 days | 2% |
| Trent O'Keeffe | 9/10 | 2872 days | 2% |
| Erich Brueggermann | 8/10 | 2880 days | 2% |
| Walter Neff | 9/10 | 2881 days | 2% |
| Rebecca Lindsey | 9/10 | 2881 days | 2% |
| Sylvie Martel | 10/10 | 2901 days | 2% |
| P Rhodes | 8/10 | 2911 days | 2% |
| Rima | 10/10 | 2921 days | 2% |
| Marie Bittmann | 9/10 | 2942 days | 2% |
| Mike Guest | 8/10 | 2961 days | 2% |
| Lyle Walker | 10/10 | 2982 days | 2% |
| Jim MacDiarmid | 8/10 | 3065 days | 2% |
| Rawiri johnston | 8/10 | 3065 days | 2% |
| Eileen Teo | 10/10 | 3065 days | 2% |
| Jenny Sharp | 7/10 | 3066 days | 1% |
| Kathy Hart | 10/10 | 3126 days | 2% |
| Markus Grau | 6/10 | 3127 days | 1% |
| Julian Minnis | 10/10 | 3139 days | 1% |
| Marian K | 9/10 | 3144 days | 1% |
| Chadd Holland | 7/10 | 3159 days | 1% |
| Matthew Francisco | 10/10 | 3177 days | 1% |
| Diana Worwood | 7/10 | 3184 days | 1% |
| Mallory Lopez | 10/10 | 3191 days | 1% |
| Lay Tyng Chan | 6/10 | 3212 days | 1% |
| Clint waters | 9/10 | 3247 days | 1% |
| veda wills | 7/10 | 3247 days | 1% |
| Zhao Lu | 10/10 | 3247 days | 1% |
| Andy Bell | 9/10 | 3278 days | 1% |
| Rebecca Hope | 9/10 | 3320 days | 1% |
| Juan Gomez | 6/10 | 3327 days | 1% |
| Amy Taylor | 8/10 | 3447 days | 1% |
| Jessie Karsif | 10/10 | 3452 days | 1% |
| Nicole | 8/10 | 3469 days | 1% |
| Moira Moroney | 10/10 | 3484 days | 1% |
| AusCampa | 6/10 | 3492 days | 1% |
| Erica b | 7/10 | 3522 days | 1% |
| Mike Gornall | 7/10 | 3553 days | 1% |
| John Drake | 5/10 | 3569 days | 0% |
| Gethin Pearson | 8/10 | 3575 days | 1% |
| Kimberley Garrod | 8/10 | 3621 days | 1% |
| Bjorn Privat | 7/10 | 3635 days | 0% |
| Todd MacFarlane | 10/10 | 3643 days | 0% |
| Bert Snel | 9/10 | 3643 days | 0% |
| Matt Newby | 9/10 | 3888 days | 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
-0.20% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 43 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Harbour Tourist Park Oamaru experience has been adjusted for 10 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 7 | -0.14% |
| 8 | -0.16% |
| 9 | -0.18% |
| 10 | -0.20% |
| 11 | -0.22% |
| 12 | -0.24% |
| 13 | -0.26% |
| … | … |
Balancing Adjustment
2.64% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
84%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.