Escribe un texto tipo informe sobre la importancia que tiene el cuidado de la salud física y emocional en el aprendizaje de los estudiantes ES PARA HOY AYUDENME LA CLASE ES DE LENGUA PERO NO HAY ASIGNACION DE LENGUA AQUI

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design