When you are referring to the sharpness of vision that an individual experiences, you are talking about her visual __________

Friend has a persistent, irrational fear that arises in anticipation of a public situation in which she can be observed by others. She knows that her fear is excessive and unreasonable,

yet she continues to avoid situations in which public scrutiny is possible. It sounds as though she may have a(n) ________ phobia. FIll in the blank with correct word.

The steps or procedures an experimenter must use to control or measure the variables in a study is called the ________

a) hypothesis b) operational definition c) double-blind study d) theory