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
104 Valid Reviews
The Portobello Village Tourist Park experience has a total of 104 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 104 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 13 |
|
13% |
| 9/10 | 24 |
|
23% |
| 8/10 | 32 |
|
31% |
| 7/10 | 17 |
|
16% |
| 6/10 | 12 |
|
12% |
| 5/10 | 3 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 2 |
|
2% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
1% |
78.37% Average
The raw data average (mean) for all the Portobello Village Tourist Park valid reviews is 78.37% and is based on 104 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 104 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
83.01%
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 |
|---|---|---|---|
| Nicolas | 7/10 | 64 days | 95% |
| Hayley | 9/10 | 125 days | 100% |
| Lindsay Byrnes | 8/10 | 247 days | 96% |
| Fabienne | 8/10 | 278 days | 95% |
| Ian Garcia | 8/10 | 307 days | 95% |
| Tine Warner | 9/10 | 338 days | 94% |
| Joel Fryett | 6/10 | 338 days | 82% |
| Loam | 6/10 | 338 days | 82% |
| M.K. | 9/10 | 430 days | 90% |
| Ryli West | 8/10 | 613 days | 78% |
| Steve | 9/10 | 644 days | 77% |
| Jake | 10/10 | 672 days | 76% |
| Arie | 7/10 | 703 days | 68% |
| Julia | 9/10 | 734 days | 70% |
| Debby | 9/10 | 764 days | 67% |
| Lothar Valentijn | 10/10 | 764 days | 68% |
| Sarah | 9/10 | 764 days | 67% |
| Colin | 8/10 | 795 days | 64% |
| Lisa | 10/10 | 917 days | 53% |
| Anne S | 9/10 | 1009 days | 43% |
| Ana and Rob | 8/10 | 1586 days | 8% |
| Sandy | 9/10 | 1617 days | 8% |
| Maria | 6/10 | 1739 days | 5% |
| M&P | 8/10 | 1768 days | 5% |
| Tom Z. | 9/10 | 1799 days | 5% |
| Tea | 8/10 | 1830 days | 5% |
| Sue W | 8/10 | 1860 days | 5% |
| Maryline | 9/10 | 2074 days | 5% |
| Esa | 7/10 | 2105 days | 4% |
| Vincent | 9/10 | 2105 days | 4% |
| TP&MM | 8/10 | 2105 days | 4% |
| Chantal | 10/10 | 2195 days | 4% |
| James & Kerry | 9/10 | 2225 days | 4% |
| Melinda Pyke | 8/10 | 2286 days | 4% |
| Grizzly Girl | 8/10 | 2286 days | 4% |
| Esteban | 8/10 | 2439 days | 4% |
| Bridget Cumming | 7/10 | 2477 days | 3% |
| M A Pelton | 10/10 | 2480 days | 4% |
| UK 50-something couple | 8/10 | 2498 days | 4% |
| Suzanne Wijsman | 9/10 | 2506 days | 4% |
| Sandra Jeffers | 6/10 | 2606 days | 3% |
| Howard Morris | 8/10 | 2622 days | 3% |
| Geoff Steele | 7/10 | 2650 days | 3% |
| Matthias Wohlgemuth | 7/10 | 2877 days | 3% |
| sara hoeflaken | 8/10 | 2891 days | 3% |
| Roeland Driessen | 8/10 | 2893 days | 3% |
| Cyrielle Vallat | 6/10 | 2949 days | 2% |
| Susan H | 10/10 | 2988 days | 3% |
| Ruth Hernandez | 8/10 | 2990 days | 3% |
| Kate | 8/10 | 3123 days | 2% |
| Joanna du Toit | 7/10 | 3280 days | 2% |
| Yvonne Wu | 8/10 | 3504 days | 2% |
| Soizic Vandermeersch | 7/10 | 3527 days | 2% |
| Rossco | 6/10 | 3534 days | 1% |
| Erica b | 7/10 | 3534 days | 2% |
| Larry Dashiell | 9/10 | 3565 days | 2% |
| June Harris | 6/10 | 3624 days | 1% |
| Matthias Thorn | 7/10 | 3624 days | 1% |
| Richard | 8/10 | 3809 days | 1% |
| travelscot | 9/10 | 3870 days | 1% |
| Patricia Revel | 9/10 | 3901 days | 1% |
| Katarina | 10/10 | 3902 days | 1% |
| Gillian Scott | 7/10 | 3929 days | 1% |
| Julie Robinson | 7/10 | 3946 days | 1% |
| Julien de la lande | 6/10 | 3972 days | 1% |
| Wouter Bosch | 7/10 | 3972 days | 1% |
| Aude Moulin | 5/10 | 3972 days | 0% |
| Maya Bakker-deDreu | 8/10 | 3980 days | 1% |
| JoMary Smith | 8/10 | 3990 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4021 days | 1% |
| Grantygrant | 7/10 | 4265 days | 0% |
| Bertiethebus | 8/10 | 4296 days | 0% |
| Kadyan | 6/10 | 4296 days | 0% |
| Malgorzata | 6/10 | 4300 days | 0% |
| Moni Sangoi | 7/10 | 4324 days | 0% |
| Puma17 | 7/10 | 4355 days | 0% |
| David | 5/10 | 4355 days | 0% |
| Auger | 10/10 | 4393 days | 1% |
| Auger | 10/10 | 4393 days | 1% |
| Mike & Jennie | 8/10 | 4672 days | 1% |
| Balonno | 3/10 | 4721 days | 1% |
| lydzb | 6/10 | 4752 days | 1% |
| ncopas | 1/10 | 4752 days | 0% |
| Annie Breton | 6/10 | 5010 days | 1% |
| Robin Smith | 10/10 | 5013 days | 1% |
| Jim & Rebecca | 9/10 | 5019 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5020 days | 1% |
| Chris | 8/10 | 5021 days | 1% |
| LandJ | 9/10 | 5027 days | 1% |
| Manfred & Gabi | 9/10 | 5038 days | 1% |
| Frank Lehe | 8/10 | 5040 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5043 days | 1% |
| Roy Seymour | 8/10 | 5046 days | 1% |
| Sabine | 9/10 | 5305 days | 1% |
| Anna | 9/10 | 5310 days | 1% |
| Siebels Wilke | 8/10 | 5324 days | 1% |
| Peter Aerborg | 9/10 | 5328 days | 1% |
| Peter Brown | 10/10 | 5388 days | 1% |
| John Cox | 8/10 | 5398 days | 1% |
| Helmet Paula | 3/10 | 5405 days | 0% |
| Lorena | 10/10 | 5420 days | 1% |
| Alexis De Wilde | 9/10 | 5492 days | 1% |
| Decuq | 7/10 | 5493 days | 1% |
| Vivien Williams | 10/10 | 5744 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
-0.98% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 48 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 45 | -0.92% |
| 46 | -0.94% |
| 47 | -0.96% |
| 48 | -0.98% |
| 49 | -1.00% |
| 50 | -1.02% |
| 51 | -1.04% |
| … | … |
Balancing Adjustment
2.47% 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
85%
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.