A test method for detecting one or multiple analytes in a test sample, said method comprising: a) combining the sample with both a labeled specific binder and a labeled multianalyte binder to form an admixture, the labeled specific binder having affinity to fewer than all the analytes to which the labeled multianalyte binder has affinity and the labeled multianalyte binder having affinity for (i) at least one analyte to which the labeled specific binder has affinity and (ii) at least one analyte to which the labeled specific binder has less affinity than does the labeled multianalyte binder; b) contacting the admixture with a test strip, the test strip configured to allow lateral flow of the admixture from a first end of the test strip to a second end of the test strip, the test strip having a test zone comprising at least two test zone capture agents, a first test zone capture agent having affinity for the labeled specific binder when the labeled specific binder is unbound by an analyte from the sample and a second test zone capture agent having affinity for the labeled multianalyte binder when the labeled multianalyte binder is unbound by an analyte from the sample; c) allowing the admixture to flow from the first end to the second end to contact the at least two test zone capture agents, wherein when any of the binders are captured at the test zone a detectable signal occurs in the test zone, the strength of which signal is relative to the combined amount of labeled multianalyte binder and labeled specific binder captured in the test zone, wherein the combined amount of the binder captured in the test zone is inversely related to the amount of an analyte in the sample and wherein the presence on the test strip of both the labeled specific binder and the first test zone capture agent (i) reduces the sensitivity to the analyte to which the labeled multianalyte binder has affinity and to which the labeled specific binder has less affinity and (ii) does not decrease the sensitivity to the analyte to which the labeled specific binder has affinity. a) combining the sample with both a labeled specific binder and a labeled multianalyte binder to form an admixture, the labeled specific binder having affinity to fewer than all the analytes to which the labeled multianalyte binder has affinity and the labeled multianalyte binder having affinity for (i) at least one analyte to which the labeled specific binder has affinity and (ii) at least one analyte to which the labeled specific binder has less affinity than does the labeled multianalyte binder; b) contacting the admixture with a test strip, the test strip configured to allow lateral flow of the admixture from a first end of the test strip to a second end of the test strip, the test strip having a test zone comprising at least two test zone capture agents, a first test zone capture agent having affinity for the labeled specific binder when the labeled specific binder is unbound by an analyte from the sample and a second test zone capture agent having affinity for the labeled multianalyte binder when the labeled multianalyte binder is unbound by an analyte from the sample; c) allowing the admixture to flow from the first end to the second end to contact the at least two test zone capture agents, wherein when any of the binders are captured at the test zone a detectable signal occurs in the test zone, the strength of which signal is relative to the combined amount of labeled multianalyte binder and labeled specific binder captured in the test zone,