Residuals from <scp>two‐step</scp> research designs

Research Designs

Some Optimal Codes From Designs

The binary and ternary codes spanned by the rows of the point by block incidence matrices of some 2-designs and their complementary and orthogonal designs are studied. A new method is also introduced to study optimal codes.

Single-case Research Designs

ingle-case research designs are a diverse and powerful set of procedures useful for demonstrating causal relations among clinical phenomena. Although such designs are flexible, efficient, and have been used to make key advances since the earliest days of psychological science, they are currently extremely underused by psychological scientists and clinicians. We review the historical and theoret...

Overview of research designs.

The aims of this paper are twofold. Firstly, to describe the obstacles that lie in the way of the researcher establishing the truth and how these may be dealt with in terms of research design. Secondly, to provide an overview of the different designs and the trade offs involved. The aim of research should be to establish the truth and research design aims to minimise or exclude the threats to t...

Quantitative Research Designs: Experimental

The ideas used in experiments today were mostly in place by the first few decades of the 20th century. The procedures of comparing groups, assigning individuals to treatments, and statistically analyzing group comparisons had been developed by 1940. During the 1960s, the types of experimental designs were identified and the strengths (e.g., control over potential threats) of these designs speci...