(MULTIPLE CHOICE): 1- In regression another name for the independent variable is a- the regressor variable. b- the predictor variable. c- both (a) and (b). d- neither (a) nor (b). (1 pts) 2- A probabilistic model is a determanistic model plus random error. a- TRUE b- FALSE (1 pts) 3- A simple linear regression line estimates
Prothrombin time (PT) and activated partial thromboplastin time (APTT) are tests that evaluate the release of specific clotting factors by measuring the time it takes for a clot to form after certain reagents are added to a blood sample.
Letâs look at the three tests used to determine bleeding or clotting times: 1  Prothrombin Time (PT) â this blood test measures how long it takes blood to clot and can be used to check for bleeding problems. 2  International Normalized Ratio (INR) â is a standardized way to report results of bleeding time.