​The reliability of a research measure refers to the extent to which that measure provides consistent evaluations of a given characteristic.

At around 18 months of age, children will learn approximately 10 or more new words and labels each week.

By the age of 24 months, most children can climb steps, walk backward, and kick a ball.

​Changes in heart rate or brain-wave activity that occur in response to the introduction of a new stimulus are called a(n) ____ response.

​Complex emotions differ from basic emotions in that complex emotions require some understanding of

​If a dominant gene meets up with a recessive gene, the traits that are contained in the dominant gene will ultimately be expressed.

​Phonemes refer only to vowel sounds and morphemes refer only to consonant sounds.

A grammatical morpheme refers to the part of a word that can be omitted without affecting grammatical correctness or meaning.

​The biggest limitation of conducting correlational research is the lack of ability to draw conclusions about cause-and-effect relationships.

​While there is an expectation that researchers will conduct their studies ethically, there is no system of checks and verifications that ensures this is the case.