You might also get a kick out of reading the Forum piece What Happened to Science on p.66. The author, Taffy, makes a point but I personally think each and every "study" needs to be read with huge skepticism these days. And that sucks.
A lot of "scientific studies" these days turn out to be just some telephone survey of 50 people in Bum-fuck Arkansas and sponsored be some shit company like Monsanto. Then they also make preconceived conclusions and use only that data that just supports their bullshit hypothesis. That's back-asswards at the start. Usually they are also authored by some PhD who actually just wrote his dissertation about the social norms of inner-city butt whores or something too. Then it was an independent DOCTOR? run scientific study?
Most of that shit is not scientific by any stretch of the imagination. I think these big-ass mother raping companies like Monsanto ASSUME people are stupid.
I once worked for a company that did these studies over the phone. Now to be fair they typically call more then just 50 people and in more places then just Bum-Fuck Arkansas. That's how they can call it a scientific study because they pick the participants using what is called a "Scientific Sampling" which does generate a sampling that is roughly representative of the demographics of the larger group the sampling represents. What that means is if say the sample size is 100 and the group the sample represents is 25% Catholic or 25% Hispanic for example then there will be 25 people out of the 100 that are Catholic or Hispanic. Now that's a simplification. The sampling goes deeper then just religion or ethnicity to also be reflective of age, income levels and other factors.
They really do have it down to a science too because not only can they pick people representative of the group being studied but they can also identify people likely to answer a particular way. The scientific part gets misused though because by saying it's a scientific study people assume the science is more then just who the people polled are. They also bank on the idea that most people believe science is unbiased and based solely on facts because most "real" science is.
Ultimately though these places that do these studies are a business and their customers are the people wanting particular studies done. Like any business they want to be profitable and so they use the proven formula of success which is to give the customer what they want and so the vast majority of these "studies" will support the desired conclusion because the company doing the study will pick people likely to answer the way the customer wants and the questions asked will be designed to get the response the customer wants.