G'day, 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 Ace Rental Cars.
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.
Ace Rental Cars
Valid Reviews
111 Valid Reviews
The Ace Rental Cars experience has a total of 118 reviews. There are 111 valid reviews that are included when calculating the ranking score and 7 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 111 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 12 |
|
11% |
| 9/10 | 9 |
|
8% |
| 8/10 | 21 |
|
19% |
| 7/10 | 7 |
|
6% |
| 6/10 | 3 |
|
3% |
| 5/10 | 5 |
|
5% |
| 4/10 | 3 |
|
3% |
| 3/10 | 2 |
|
2% |
| 2/10 | 17 |
|
15% |
| 1/10 | 32 |
|
29% |
49.10% Average
The raw data average (mean) for all the Ace Rental Cars valid reviews is 49.10% and is based on 111 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
47 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 111 valid reviews, the experience has 47 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 47 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 5 |
|
11% |
| 9/10 | 5 |
|
11% |
| 8/10 | 19 |
|
40% |
| 7/10 | 7 |
|
15% |
| 6/10 | 3 |
|
6% |
| 5/10 | 4 |
|
9% |
| 4/10 | 2 |
|
4% |
| 3/10 | 1 |
|
2% |
| 2/10 | 1 |
|
2% |
| 1/10 | 0 |
|
0% |
73.83% Average
The raw data average (mean) for all the Ace Rental Cars face-to-face reviews is 73.83% and is based on 47 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
32.58%
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 |
|---|---|---|---|
| Paul | 1/10 | 39 days | 100% |
| Nicole | 1/10 | 404 days | 91% |
| Lana | 1/10 | 1015 days | 42% |
| Megan | 1/10 | 1135 days | 32% |
| Mateo | 1/10 | 1288 days | 21% |
| Jenny Kirk | 1/10 | 2049 days | 5% |
| John | 1/10 | 2202 days | 4% |
| Kim canny | 1/10 | 2262 days | 4% |
| Richard Bird | 2/10 | 2262 days | 5% |
| Neal Smith | 10/10 | 2292 days | 10% |
| Marianne | 1/10 | 2568 days | 4% |
| Andy Willmott | 1/10 | 2596 days | 3% |
| Kate | 1/10 | 2596 days | 3% |
| Luca Mangione | 2/10 | 2627 days | 4% |
| John | 2/10 | 2627 days | 4% |
| Sri Claney | 1/10 | 2658 days | 3% |
| Tom | 10/10 | 2658 days | 8% |
| Wendy | 10/10 | 2719 days | 8% |
| Justin | 1/10 | 2749 days | 3% |
| Dan | 2/10 | 2749 days | 4% |
| PB | 1/10 | 2841 days | 3% |
| Mike | 2/10 | 2902 days | 3% |
| Siena | 1/10 | 2902 days | 3% |
| Josephina | 1/10 | 2902 days | 3% |
| RyLee B | 1/10 | 2992 days | 3% |
| Chris Monk | 1/10 | 3266 days | 2% |
| Bryce Kehoe | 8/10 | 3284 days | 5% |
| Martin Murlik | 6/10 | 3288 days | 5% |
| Audrey Darling | 1/10 | 3325 days | 2% |
| Ben | 8/10 | 3428 days | 4% |
| Jo Yo | 1/10 | 3478 days | 2% |
| Olivier Reculeau | 8/10 | 3634 days | 3% |
| Bernhard Fichtl | 5/10 | 3691 days | 2% |
| Casey O'Brien | 2/10 | 3691 days | 1% |
| Carmel Lackey | 10/10 | 3815 days | 3% |
| Martin B | 2/10 | 3875 days | 1% |
| S D | 2/10 | 3936 days | 1% |
| Dror Eyal | 2/10 | 4028 days | 1% |
| Ted Allan | 2/10 | 4028 days | 1% |
| Kat R | 2/10 | 4056 days | 1% |
| Tom Grigg | 6/10 | 4069 days | 1% |
| Charlie Birdwick | 9/10 | 4179 days | 1% |
| Kiwinomad | 1/10 | 4210 days | 0% |
| Paje | 2/10 | 4210 days | 0% |
| MODADC | 3/10 | 4241 days | 0% |
| kjd | 2/10 | 4363 days | 0% |
| Pete Dixon | 1/10 | 4421 days | 1% |
| Diane S | 9/10 | 4422 days | 2% |
| Michael Rohn | 8/10 | 4450 days | 2% |
| Cornelia Stark | 9/10 | 4450 days | 2% |
| Michael Stark | 10/10 | 4450 days | 2% |
| Tisa Duong | 1/10 | 4453 days | 1% |
| R K | 1/10 | 4453 days | 1% |
| Simon Kay | 2/10 | 4453 days | 1% |
| Annika Schmidt | 7/10 | 4733 days | 2% |
| Patrick Stoeit | 5/10 | 4733 days | 2% |
| Y S | 10/10 | 4787 days | 2% |
| Rikke E. | 1/10 | 4818 days | 1% |
| Takenforaride | 1/10 | 4818 days | 1% |
| sharnef | 2/10 | 4910 days | 1% |
| Tourist101 | 9/10 | 4910 days | 2% |
| Jonas King | 4/10 | 4971 days | 2% |
| NoWonderAllKiwisAreInOZ | 1/10 | 5032 days | 1% |
| russwhanau | 1/10 | 5093 days | 1% |
| Marian Stolker | 8/10 | 5140 days | 2% |
| Thomas Krause | 5/10 | 5147 days | 2% |
| Chris & Jen Spencer | 8/10 | 5164 days | 2% |
| Wendy Ashmore | 10/10 | 5231 days | 2% |
| Hamlet | 1/10 | 5337 days | 1% |
| tonny_lim | 1/10 | 5398 days | 1% |
| Gunter | 8/10 | 5473 days | 2% |
| Igor Cima | 10/10 | 5476 days | 2% |
| Gary Koehler | 8/10 | 5481 days | 2% |
| Ryan Dorsey | 8/10 | 5487 days | 2% |
| Kathleen Brown | 10/10 | 5488 days | 2% |
| Ross | 10/10 | 5490 days | 2% |
| Wendy Good | 8/10 | 5492 days | 2% |
| Stacey Rees | 2/10 | 5504 days | 1% |
| Helen Gilbertson | 8/10 | 5517 days | 2% |
| Lacam | 5/10 | 5518 days | 2% |
| jls | 1/10 | 5580 days | 1% |
| chubby69 | 9/10 | 5733 days | 2% |
| Ann Michle | 8/10 | 5775 days | 2% |
| Rose Kearsley | 7/10 | 5845 days | 2% |
| Jamie Hallifax | 8/10 | 5874 days | 2% |
| meggles | 2/10 | 5883 days | 1% |
| Jane | 8/10 | 5945 days | 2% |
| Dimitry Zonnet | 8/10 | 5971 days | 2% |
| S Schlesinger | 10/10 | 6193 days | 2% |
| Jessica Jobmann | 7/10 | 6195 days | 2% |
| Mayer | 8/10 | 6205 days | 2% |
| AnnickH | 7/10 | 6211 days | 2% |
| OllyD | 4/10 | 6218 days | 2% |
| Jasmin | 7/10 | 6219 days | 2% |
| ChenM | 9/10 | 6223 days | 2% |
| Mark | 8/10 | 6261 days | 2% |
| Daryl | 7/10 | 6262 days | 2% |
| Tim | 8/10 | 6309 days | 2% |
| Kath | 9/10 | 6366 days | 2% |
| Louise | 9/10 | 6395 days | 2% |
| Edmund Hillstone | 1/10 | 6538 days | 1% |
| Marian Mckinney | 10/10 | 6582 days | 2% |
| Emma Dickinson | 6/10 | 6586 days | 2% |
| Omri Hasson | 4/10 | 6586 days | 2% |
| Ian and Judy | 8/10 | 6590 days | 2% |
| Katharina | 7/10 | 6601 days | 2% |
| Mike | 3/10 | 6601 days | 1% |
| Mark | 8/10 | 6617 days | 2% |
| Melissa Steedman | 5/10 | 6628 days | 2% |
| Steven | 9/10 | 6663 days | 2% |
| purplekat99 | 8/10 | 6737 days | 2% |
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 Ace Rental Cars experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.83% Adjustment
Recent reviews reflect the experience as it currently operates. This means it's important to get fresh reviews. Some experiences discovered they could get a few good reviews and then, resting on their laurels, discourage any further reviews. This adjustment stimulates experiences to be positively involved in the review generating process and discourages them from manipulating the ranking system in this manner.
What constitutes a recent review is based on the how old it is, what type of experience it is applied to and and what time of year it currently is. Due to the seasonal nature of many businesses, what is considered recent is dynamically adjusted throughout the year.
There may be an adjustment if this experience hasn't received enough reviews within the last 57 days. The Ace Rental Cars experience has 1 recent ranking. Adjustments are according to the following table:
| Recent Reviews | Adjustment |
|---|---|
| 0 | -3.00% |
| 1 | -2.63% |
| 2 | -1.50% |
| 3 | -0.38% |
| 4 | -0.00% |
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 Ace Rental Cars 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
33.06% 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
63%
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.