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.
Operational definitions literally point us to concrete indicators of abstract ideas. For example, a psychologist might create an operational definition for the abstract construct, hunger, to point to the behaviors or set of conditions in the world to which hunger is tied. Constructs could also be tied to observations indirectly via other constructs.