Yes it is. There are quite some studies where the sample size is 20 or 30 people per group, and sometimes even 15-20 in total. Combina that with the fact that

Yes it is. There are quite some studies where the sample size is 20 or 30 people per group, and sometimes even 15-20 in total. Combina that with the fact that they often use psychology students as experiment group and the fact that most research doesn’t go further than assume a normal distribution, and you might start to understand why more than 2/3rds of all psychology research cannot be reproduced.