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 Portobello Village Tourist Park.
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.
Portobello Village Tourist Park
Valid Reviews
114 Valid Reviews
The Portobello Village Tourist Park experience has a total of 114 valid reviews. There are no 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.
Below is the distribution of ratings for the 114 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 15 |
|
13% |
| 9/10 | 25 |
|
22% |
| 8/10 | 35 |
|
31% |
| 7/10 | 19 |
|
17% |
| 6/10 | 14 |
|
12% |
| 5/10 | 3 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 2 |
|
2% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
1% |
78.42% Average
The raw data average (mean) for all the Portobello Village Tourist Park valid reviews is 78.42% and is based on 114 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
30 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 114 valid reviews, the experience has 30 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 30 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 6 |
|
20% |
| 9/10 | 7 |
|
23% |
| 8/10 | 9 |
|
30% |
| 7/10 | 3 |
|
10% |
| 6/10 | 3 |
|
10% |
| 5/10 | 1 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
3% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
80.67% Average
The raw data average (mean) for all the Portobello Village Tourist Park face-to-face reviews is 80.67% and is based on 30 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
80.06%
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 |
|---|---|---|---|
| India Cooper-Clark | 8/10 | 140 days | 100% |
| cirefice bernard | 7/10 | 322 days | 90% |
| Paul | 8/10 | 383 days | 93% |
| Rich | 7/10 | 475 days | 84% |
| Eline | 6/10 | 566 days | 73% |
| Laurie | 9/10 | 597 days | 81% |
| Hannah | 10/10 | 625 days | 80% |
| Shaun | 10/10 | 625 days | 80% |
| Anne | 8/10 | 656 days | 76% |
| Fredrik | 6/10 | 656 days | 67% |
| Nicolas | 7/10 | 748 days | 65% |
| Hayley | 9/10 | 809 days | 64% |
| Lindsay Byrnes | 8/10 | 931 days | 51% |
| Fabienne | 8/10 | 962 days | 48% |
| Ian Garcia | 8/10 | 991 days | 45% |
| Tine Warner | 9/10 | 1022 days | 43% |
| Joel Fryett | 6/10 | 1022 days | 37% |
| Loam | 6/10 | 1022 days | 37% |
| M.K. | 9/10 | 1114 days | 34% |
| Ryli West | 8/10 | 1297 days | 21% |
| Steve | 9/10 | 1328 days | 19% |
| Jake | 10/10 | 1356 days | 18% |
| Arie | 7/10 | 1387 days | 15% |
| Julia | 9/10 | 1418 days | 15% |
| Debby | 9/10 | 1448 days | 13% |
| Lothar Valentijn | 10/10 | 1448 days | 13% |
| Sarah | 9/10 | 1448 days | 13% |
| Colin | 8/10 | 1479 days | 12% |
| Lisa | 10/10 | 1601 days | 8% |
| Anne S | 9/10 | 1693 days | 6% |
| Ana and Rob | 8/10 | 2270 days | 4% |
| Sandy | 9/10 | 2301 days | 4% |
| Maria | 6/10 | 2423 days | 3% |
| M&P | 8/10 | 2452 days | 4% |
| Tom Z. | 9/10 | 2483 days | 4% |
| Tea | 8/10 | 2514 days | 4% |
| Sue W | 8/10 | 2544 days | 4% |
| Maryline | 9/10 | 2758 days | 3% |
| Esa | 7/10 | 2789 days | 3% |
| Vincent | 9/10 | 2789 days | 3% |
| TP&MM | 8/10 | 2789 days | 3% |
| Chantal | 10/10 | 2879 days | 3% |
| James & Kerry | 9/10 | 2909 days | 3% |
| Melinda Pyke | 8/10 | 2970 days | 3% |
| Grizzly Girl | 8/10 | 2970 days | 3% |
| Esteban | 8/10 | 3123 days | 2% |
| Bridget Cumming | 7/10 | 3161 days | 2% |
| M A Pelton | 10/10 | 3164 days | 2% |
| UK 50-something couple | 8/10 | 3182 days | 2% |
| Suzanne Wijsman | 9/10 | 3190 days | 2% |
| Sandra Jeffers | 6/10 | 3290 days | 2% |
| Howard Morris | 8/10 | 3306 days | 2% |
| Geoff Steele | 7/10 | 3334 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3561 days | 1% |
| sara hoeflaken | 8/10 | 3575 days | 1% |
| Roeland Driessen | 8/10 | 3577 days | 1% |
| Cyrielle Vallat | 6/10 | 3633 days | 1% |
| Susan H | 10/10 | 3672 days | 1% |
| Ruth Hernandez | 8/10 | 3674 days | 1% |
| Kate | 8/10 | 3807 days | 1% |
| Joanna du Toit | 7/10 | 3964 days | 1% |
| Yvonne Wu | 8/10 | 4188 days | 0% |
| Soizic Vandermeersch | 7/10 | 4211 days | 0% |
| Rossco | 6/10 | 4218 days | 0% |
| Erica b | 7/10 | 4218 days | 0% |
| Larry Dashiell | 9/10 | 4249 days | 0% |
| June Harris | 6/10 | 4308 days | 0% |
| Matthias Thorn | 7/10 | 4308 days | 0% |
| Richard | 8/10 | 4493 days | 1% |
| travelscot | 9/10 | 4554 days | 1% |
| Patricia Revel | 9/10 | 4585 days | 1% |
| Katarina | 10/10 | 4586 days | 1% |
| Gillian Scott | 7/10 | 4613 days | 1% |
| Julie Robinson | 7/10 | 4630 days | 1% |
| Julien de la lande | 6/10 | 4656 days | 1% |
| Wouter Bosch | 7/10 | 4656 days | 1% |
| Aude Moulin | 5/10 | 4656 days | 0% |
| Maya Bakker-deDreu | 8/10 | 4664 days | 1% |
| JoMary Smith | 8/10 | 4674 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4705 days | 1% |
| Grantygrant | 7/10 | 4949 days | 1% |
| Bertiethebus | 8/10 | 4980 days | 1% |
| Kadyan | 6/10 | 4980 days | 1% |
| Malgorzata | 6/10 | 4984 days | 1% |
| Moni Sangoi | 7/10 | 5008 days | 1% |
| Puma17 | 7/10 | 5039 days | 1% |
| David | 5/10 | 5039 days | 1% |
| Auger | 10/10 | 5077 days | 1% |
| Auger | 10/10 | 5077 days | 1% |
| Mike & Jennie | 8/10 | 5356 days | 1% |
| Balonno | 3/10 | 5405 days | 0% |
| lydzb | 6/10 | 5436 days | 1% |
| ncopas | 1/10 | 5436 days | 0% |
| Annie Breton | 6/10 | 5694 days | 1% |
| Robin Smith | 10/10 | 5697 days | 1% |
| Jim & Rebecca | 9/10 | 5703 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5704 days | 1% |
| Chris | 8/10 | 5705 days | 1% |
| LandJ | 9/10 | 5711 days | 1% |
| Manfred & Gabi | 9/10 | 5722 days | 1% |
| Frank Lehe | 8/10 | 5724 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5727 days | 1% |
| Roy Seymour | 8/10 | 5730 days | 1% |
| Sabine | 9/10 | 5989 days | 1% |
| Anna | 9/10 | 5994 days | 1% |
| Siebels Wilke | 8/10 | 6008 days | 1% |
| Peter Aerborg | 9/10 | 6012 days | 1% |
| Peter Brown | 10/10 | 6072 days | 1% |
| John Cox | 8/10 | 6082 days | 1% |
| Helmet Paula | 3/10 | 6089 days | 0% |
| Lorena | 10/10 | 6104 days | 1% |
| Alexis De Wilde | 9/10 | 6176 days | 1% |
| Decuq | 7/10 | 6177 days | 1% |
| Vivien Williams | 10/10 | 6428 days | 1% |
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 Portobello Village Tourist Park experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.20% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 days. However the Portobello Village Tourist Park 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 Portobello Village Tourist Park experience has been adjusted for 121 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 118 | -2.15% |
| 119 | -2.17% |
| 120 | -2.18% |
| 121 | -2.20% |
| 122 | -2.22% |
| 123 | -2.24% |
| 124 | -2.26% |
| … | … |
Balancing Adjustment
3.64% 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
82%
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.