1. Identify the independent variables and levels of the IV in each of the following hypotheses: a. Absence makes the heart grow fonder. b. It takes longer to recognize a person in a photograph seen upside down. c. People feel sadder in blue rooms than pink rooms. d. Waiting with others reduces anxiety. 2. Identify the dependent variables in each hypothesis in question 2. 3. a. Absence makes the heart grow fonder. b. It takes longer to recognize a person in a photograph seen upside down. c. People feel sadder in blue rooms than pink rooms. d. Waiting with others reduces anxiety. Formulate an experimental operational definition for each independent variable in question 2. a. Absence makes the heart grow fonder. b. It takes longer to recognize a person in a photograph seen upside down. c. People feel sadder in blue rooms than pink rooms. d. Waiting with others reduces anxiety. 4. Formulate a measured operational definition for each dependent variable in question 2. a. Absence makes the heart grow fonder. b. It takes longer to recognize a person in a photograph seen upside down. c. People feel sadder in blue rooms than pink rooms. d. Waiting with others reduces anxiety. 5. For each hypothesis in question 2, discuss three extraneous variables that might interfere with making a valid test of that hypothesis. a. Absence makes the heart grow fonder. b. It takes longer to recognize a person in a photograph seen upside down. c. People feel sadder in blue rooms than pink rooms. d. Waiting with others reduces anxiety.