Identify the consequences (i.e., increase, decrease, or none) that the following procedures are likely to have on both bias and sampling error in an experimental study.

a. Assigning treatment to subjects alphabetically, not randomly.

b. Increasing sample size.

c. Calculating power.

d. Applying every treatment to every experimental unit in random order.

e. Using a sample of convenience instead of a random sample.

f. Testing only one treatment group, without a control group.

g. Using a balanced design.

h. Informing the human participants which treatment they will receive.