Types of Grass to Grow in Central Alabama. Plant warm-season grasses in central Alabama for best results in sun or partial shade. Cool-season grasses like Kentucky bluegrass, ryegrass and fine fescue do most of their growing from fall to spring, and prefer cooler temperatures. Prepare the planting site well ahead of spring planting.
Operational Definitions. To test an idea, one must gather data. This means one must relate ideas to concrete, measurable events in the world. That is why scientists need operational definitions, which are definitions that tell how to measure or detect something.
Everyone who has taken an undergraduate methodology course in psychology 'knows' what an operational definition is. It is practically an article of faith among psychologists that in order to conduct empirical research each of the variables under study must first be operationally defined.perational definition is a myth, a remnant of an obsolete philosophy of science, but a myth that commands the allegiance of most psychologists. . . . But removed from its historical context and stripped of its philosophical justification, operationism became a talisman and 'operational definition' a liturgical phrase.