You want to do a survey on how religious people are in your town. what do you need to have a valid scientific sample? check all that apply. a. people who go to church b. a sample of the students in school c. a random sample of the towns population d. a mix of participants that reflect your towns makeup

Rite three to five sentences describing your view of the supreme court's "separate but equal" principle in the plessy v. ferguson decision.

Apsychologist has developed a series of personality inventories and wants to determine if they are valid. one of the scales measures perfectionism, so he asks a colleague for advice on how to establish the validity of this scale. the colleague tells him that if he were to find a sample of people with personality disorder, these people would obtain high scores on a scale that measures perfectionism.

Which pronoun has an unclear antecedent in the following sentences? the sixth-grade students liked volunteering their time to read to the elderly people in the hospital. it made them happy. a. their b. it c. them d. no unclear antecedents