Which of the following statements concerning cross-sectional research is false?
a. cross-sectional research analyzes the same subjects over a period of time. b.cross-sectional research is used to compare variables across groups. c.cross-sectional research conducts a particular study only one time. d.cross-sectional research is often used in educational or developmental psychology.

Read this cover letter: dear sir or madam: i am responding to your ad seeking data managers. i feel i am highly qualified for the position and have a great deal of relevant experience. i have managed the bookkeeping data for a local volunteer organization for several years. they couldn't get rid of me; i loved the job so much! i can provide several references attesting to my punctuality, bookkeeping abilities, and reliability. i look forward to your response. best wishes, john smith what is one of the weaknesses of this cover letter? a. it overstates the candidate's qualifications. b. it makes an attempt at humor. c. it provides irrelevant information. d. it makes the candidate appear selfish.