improve my IQ

It’s strange how inconsistent IQ test scores seem to be. A test I took only about a year back showed I was a moderate 120. I take a test last week as part of a psychology experiment and I’m suddenly score 15 points higher. My psychology lecturer mentioned something once about IQ being a fluctuating quotient. Some days it’ll be higher, other days it’ll be lower. I’m quite dubious about the whole thing, suddenly.

As some people have already mentioned IQ tests aren’t exactly 100% reliable. I’m still a little shocked after taking an IQ test (I won’t name any names) and getting a result of 105. The last time I had taken a test of this nature I remember I scored somewhere in the region of 120. Granted it’s not a huge difference but seeing as a few years have passed and I’ve matured somewhat it can hardly be right that my IQ points have dropped 15 pts!