huge difference in keyworddiscovery vs. wordtracker results

I decided to try out the two tools and found significant differences in the results of keyworddiscovery and wordtracker.
For instance, keyword "how to complete a research paper" appears in keyworddiscovery 44,256 times and only 2 times in wordtracker. The predicted number of queries is over 1,000 in keyworddiscovery and only 3 in wordtracker.
Can someone explain such a difference in the results?

 

I feel your pain, I've seen similar errors in Wordtracker as well. A few times I've targeted certain keywords only to find that the Wordtracker estimate was horribly wrong. Does anyone know a better way to estimate searches per day? Preferably something that can be done in bulk?

 

Just went on experimenting with the two tools... the results are not different - at times they are the opposite... I would understand if the number of quiries was different by one single amount, but at times - it just goes the opposite directions...

 

Wordtracker only pulls results from Meta search engines. KW grabs it results from many more sources.

 

And which one is then more reliable and more relevant for search engine optimization?

 

i use seobook keyword tool

 

Per a similiar thread on DP

 

I use Keyword Discovery although it will expire soon. Yes I agree with that quote from Jeremy. As these tools cull their data from various sources it's nonsense to compare them within each other. Even one tool's numbers can't be taken as the exact frequency a keyword has been used.

What about if someone tried to alter the data by searching for a keyword just because he wants to show that this keyword is being used many times? So the numbers we see should just be used as a relative comparison against other keywords.

 

Yes that is why there will be lot of diff in results.Most of us target meta search engines so they go for WordTracker.

 

Well that must suck for most, since no one really uses meta search engines, not like the big 3.

Anyway, I'd use both. Combine with keyword research tools. Subscribe to as many as you can find and as much as your budget allows. Then cobmine lists from all sources to create your own "keyword research tool". You'll find many more undiscovered keywords that way, as well as long-tail searches.

 

yes finding keywords and topic is very important and hard.I will be always confused which sites and keywords are good in my budget.

 

theres always the google keyword tool, since most people are optimising for google why not get the popular keyword info straight from the horses mouth?

 

Google delivers data only from, well... Google.