Map-M/R vs. Cogat

[Anonymous]

CogAT measures learned reasoning and problem-solving skills in three different areas: verbal, quantitative, and nonverbal. ... CogAT does not measure such factors as effort, attention, motivation, and work habits, which contribute to school achievement as well.

MAP
is a norm-referenced measure of student growth over time. MAP assessments, joined with other data points,
provide detailed, actionable data about where each child is on his or her unique learning path. MAP assessments
differ from other data sources used by the schools
to inform instruction by being nationally normed,
by tracking student progress throughout
a year and across school years, and by being linked to
software tools which can assist teachers and administrators in planning instruction.

[Anonymous]

OP, since this is HS and presumably your child is highly motivated to get in I would makes sure to familiarize your child with the types of questions and format of Cogat.

My elementary child took it completely unprepared and was thrown off by the types of questions in one section and did not finish. I consider elementary low stakes so neither DS nor I was upset but since your child is older I would want to make sure he has a fair shot of getting in by previewing the format. Good luck to your DC!