The middle ear space helps overcome what physical phenomenon? (Choose one)  

Consider: #include #include #include int main() { pid_t pid = fork(); if(pid == 0) exit(0); printf(“Parent\n”); return 0; } How many times “Parent” is printed? 

Consider the following C program:  #include #include int g1 = 42; int g2; static int sg = 7; void foo(int n) { int local = 5; static int sLocal = 100; int *p = (int*)malloc(n * sizeof(int)); p[0] = g1 + local; printf(“%d\n”, p[0]); free(p); } int main(int argc, char *argv[]) { int x = 10; foo(4); return 0; } Where are the variables x, local, and parameter n stored?

Consider:  #include #include #include int main() { pid_t pid = fork(); if(pid == 0) { printf(“Child exiting\n”); exit(0); } else { sleep(10); printf(“Parent exiting\n”); } return 0; } During the 10-second sleep period, what is the state of the child process?

Define internal and external validity. Describe a study in which the results may have internal validity but lack external validity.

Journal articles that present original research are called ____________________ articles.

What kind of sampling method is represented by the figure below?  

Explain how the following term threatens the validity of survey research and provide an example: Acquiescence.

Which of the following is not considered plagiarism?

Operational definitions specify what a construct means in a theoretical sense.