"Those who believe they will succeed are usually right. Those who believe they will fail are always right." This quotation is a brief summary of the locus of control theory of __________

When participants are randomly assigned either to an experimental condition or to a control condition, this is called a __________ design

FIll in the blank with correct word.

Under normal circumstances, our brains lose 2–3 grams of weight per year after age 60

Indicate whether the statement is true or false.