What is the dependent variable of the study?*1 pointa. Pregnant patientsb. Level of anxietyc. Introduction of music therapyd. Pregnancy

Nurse Abby wishes to conduct research on the effect of music therapy on the anxiety levels of pregnant patients. What is the independent variable in the study?

We wish to test the hypothesis that music improves learning. We compare the test scores of students who study with music and those who study in silence. Which of the following is an extraneous variable in this experiment?a.the presence or absence of musicb.the amount of time allowed for studyingc.silenced.the students test scores

Rebecca is conducting a study in which one group is exposed to loud music while completing a writing assignment and the other group has quiet conditions. Further, Rebecca examines the effect of gender within these groups. Therefore, she is examining the effects of both noise and gender on participants' performance on a writing task. Which of the following reflects the type of variables in this study? A. One independent variable and two dependent variables B. One control variable and two independent variables. C. Two independent variables and one dependent variable. D. One independent variable, one control variable, and one dependent variable.

We wish to test the hypothesis that music improves leaning. We compare test scores of students who study to music with those who study in silence. Which of the following is an extraneous variable in the experiment? A. the amount of time allowed for the studying B. Any of them is an extraneous variable C. the students test scores D. the presence or absence of the music

A researcher uses an experimental design to study the effect of music on memory. In this experiment, the Independent Variable is:a. musicb. memoryc. both music and memoryd. neither music nor memory