I just took Psych 100a with Jaffe (Winter 2014) and I thought he was actually very good. I didn't know what to think going in because there were no reviews for him (which is kind of my motivation for doing this). I'm going to try to give everyone the best idea of what 100a with Jaffe is like.

His Lectures: Decent. He's such a nice guy I don't want to call them a waste of time, but every so often he'd have calculations to do and ask someone to actually calculate it which seemed kind of a waste of time. I decided about week 5 that the best use of my time would be to stop going to lecture and read the online textbook. His powerpoints were pretty dry in all honesty. Nothing he said wasn't in the book. He seemed to go right along with it anyways...but nice guy...

Tests: 3 Midterms and a Final. All multiple choice which seemed to make it much easier. He had practice tests online and you can go to the testbank at SAC to get Mcauliffe's past midterms which look exactly alike. Just master all the possible curveballs the online book has, any questions you can get your hands on, and you should be good to go. Never in my life have I got a perfect score on a midterm and I did in this class. You can too! Read the textbook, know everything in the chapters, do the problem solvers, memorize all formulas, try practice multiple choice and you're gold.

I ended up with a A in the class. I thought it was very straight forward, any curveballs on the tests were pretty reasonable. Good guy, I hope he doesn't make the tests any harder in the future. In short, if he is teaching 100a and you need the class, he is your best bet for a good grade.

Professor Jaffe is easily the most approachable professor I have had since starting UCLA. With that said, I wouldn't consider his 100A class to be an easy A, but no math class is. However getting an A is not impossible!
I must warn you, if you're some one who is accustomed to studying solely from slides, this class is not for you. Professor Jaffe only uses slides as an outline for the material covered, and it's your responsibility to go back and learn from the textbook. With that said, I would definitely suggest attending his office hours. He will take all of your questions and answer them with full clarity. Those extra office hours can be what get you that A versus a B in the class.

There are three exams and weekly online quizzes. Each exam is worth 30% of your grade and the quizzes are worth 10% all together. The final exam is not cumulative.

Overall, I would definitely recommend him as a professor!

SELLING Textbook $50

This class is pretty straightforward if you actually read the textbook and take good notes. In addition, when it comes to test most of the stuff comes out directly from the personal trainer (an online program that comes with the textbook).

A nice guy but the worst professor I ever had. His lectures had nothing to do with the material and we basically had to teach ourselves everything. Including for the quizzes too. This was my first quarter at UCLA and this class physically and emotionally drained me.

Professor Jaffe is possibly one of the most charismatic and entertaining professors I've had at UCLA. Aside from his charming personality, he was quite unhelpful and his lectures were not very clear/informative. After the first midterm, I stopped attending lectures since I realized I wasn't learning anything during the 3 hours each week. I was still able to pull off a 96% on Midterm 2 and a 98% on the final. All that I did to study for the class was use the online hurlburt program to take notes on each of the lectlets and complete the reviewmaster portion of the application. Overall, this class was pretty easy as long as your willing to put in the work during your own time.

Bad

Jaffe is a very inspiring professor but having that been said, his teaching ability is only subpar. His lectures are almost pointless to go to because I didn't really learn from them. I stopped paying attention after the first midterm and started teaching myself instead, which I was doing the whole time anyway. The online tools are a MUST to do well in the class since he doesn't teach well. The last test he put stuff on it that he didn't even try to teach us. I'm not sure if the other professor for this class will be any better but I know that he is the one that writes the tests so maybe he would tell you more of what to study. If you do have to take Jaffe I really recommend going to pretty much every office hour because he teaches way more in them which is frustrating. Best of luck!

Dr. Jaffe is extremely charismatic and one of the most approachable profs I've encountered @ UCLA. Very nice guy! His class is another story. You literally need to teach yourself statistics in order to pass this class. Going to lectures is completely useless because he does not teach anything that will help you grasp the concepts. Many of the people that did well in his class were individuals who had previously taken psych stats at their CC's. His tests are completely conceptual with only 5 out of 50 equations involving actual formula's. Good luck!

Adi Jaffe is an AWESOME professor. I took his class during my first quarter (Fall 2015) and found it to be life changing. The grading is very fair and it is not too difficult to get an A. The class lectures are concise and clear, and he keeps the class interesting with relevant studies that help you further grasp the material. He is also very helpful during office hours so do make sure to attend. My TA was somewhat crappy so I made sure to attend those for further clarification. Psych 100A has been known to be a difficult class to understand (as it is statistics heavy) but Dr. Jaffe makes the class a pleasure to attend. Just make sure you know the formulas and their corresponding applications when taking the exams (that's what the majority of the class missed) and you'll do alright. I would highly recommend taking this class with Dr. Jaffe. Now that I am on the cusp of graduation, I can say that he is hands down one of my favorite professors at this school.

He's a charismatic guy, but he goes over class material a bit too fast paced in my opinion. He required us to purchase tophat, which was essentially the lectures (written by him), and while those helped clarify things a bit, the textbook and the online code/lectlets were absolutely essential for me to even pass the class. I felt like listening to those were what really taught me because I couldn't catch up to what he was saying in class.