A method for detecting an analyte in a body fluid, the method having the following steps: a) applying a sample of the body fluid to a test element, said test element comprising at least (i) a test field comprising at least one test material adapted to change at least one measurable property in the presence of the analyte, (ii) a capillary element adapted to guide the sample across said test field in a flow direction, (iii) a first and a second measurement location (158, 160) within said test field, wherein the second measurement location is offset from the first measurement location in the flow direction; b) measuring the measurable property in said at least one first measurement location, thereby generating at least one first measurement value; c) measuring the measurable property in said at least one second measurement location, thereby generating at least one second measurement value; d) detecting the analyte by using an evaluation algorithm having at least two input variables, wherein (i) at least one first input variable of the at least two input variables includes an information on a difference between the first measurement value and the second measurement value, and (ii) at least one second input variable of the at least two input variables includes a measurement information on an analyte-induced change of the measurable property of the test material in at least part of the test field, wherein the test material performs at least one optically or electrochemically detectable detection reaction in the presence of the analyte. a) applying a sample of the body fluid to a test element, said test element comprising at least (i) a test field comprising at least one test material adapted to change at least one measurable property in the presence of the analyte, (ii) a capillary element adapted to guide the sample across said test field in a flow direction, (iii) a first and a second measurement location (158, 160) within said test field, wherein the second measurement location is offset from the first measurement location in the flow direction; (i) a test field comprising at least one test material adapted to change at least one measurable property in the presence of the analyte, (ii) a capillary element adapted to guide the sample across said test field in a flow direction, (iii) a first and a second measurement location (158, 160) within said test field, wherein the second measurement location is offset from the first measurement location in the flow direction; b) measuring the measurable property in said at least one first measurement location, thereby generating at least one first measurement value; c) measuring the measurable property in said at least one second measurement location, thereby generating at least one second measurement value; d) detecting the analyte by using an evaluation algorithm having at least two input variables, wherein (i) at least one first input variable of the at least two input variables includes an information on a difference between the first measurement value and the second measurement value, and (ii) at least one second input variable of the at least two input variables includes a measurement information on an analyte-induced change of the measurable property of the test material in at least part of the test field, wherein the test material performs at least one optically or electrochemically detectable detection reaction in the presence of the analyte. (i) at least one first input variable of the at least two input variables includes an information on a difference between the first measurement value and the second measurement value, and (ii) at least one second input variable of the at least two input variables includes a measurement information on an analyte-induced change of the measurable property of the test material in at least part of the test field,