How long can perishable foods sit on the counter?

What is an important step to prove something is valid or not? determining the reliability observing research testing

During his workout yesterday, anthony pushed himself by lifting heavier weights. today he is feeling good, but his muscles are sore. what principle is at work in this situation? a. specificity b. progression c. overload d. reversibility

Write a journal at least 1 paragraph. in your mind, how do you define psychology right now? when do you think psychology began? what do you think modern psychologists do?