More new teachers are planning to change careers, despite an increase in job satisfaction in the profession as a whole, according to a national survey released Thursday.

The 1988 Survey of the American Teacher found that 34 percent of teachers with less than five years experience said they planned to leave teaching, up from 19 percent in 1985.Planned defections from teaching were especially common among black and Hispanic teachers, the survey said. Forty-one percent of all minority group teachers polled said they were likely to leave teaching in the next five years, compared with only 25 percent of all non-minority teachers.

The planned defections among newer teachers came despite an overall increase in job satisfaction among teachers, the survey reported. Fifty percent of those surveyed said they were satisfied overall with their jobs, up from 40 percent in 1985.

The survey also found that the proportion of those earning more than $30,000 doubled since 1985, rising from 13 percent to 26 percent.

The survey was sponsored by Metropolitan Life and conducted between April and June of this year by Louis Harris & Associates. The company questioned 1,208 teachers and 2,700 public school students in grades four through 12.

Results in most cases had margins of error between 2 and 3 percentage points.