PSYC 2110 Lecture Notes - Lecture 17: Scale-Invariant Feature Transform
30 May 2018
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PSYC 2110 Lecture 17 Notes
Introduction
Research Strategies: Basic Methods and Designs
• Good theories have another important feature: the ability to predict future events.
• These theoretical predictions, or hypotheses, are then tested by collecting data.
• The information we obtain when testing hypotheses provides information about the
theor’s ailit to eplai e oseratios.
• It may also lead to new theoretical insights that extend our knowledge even further.
• Today there are many theories that have contributed to our understanding of child and
adolescent development
• We will examine several of the more influential of these viewpoints.
• Although it is natural for people reading about various theories to favor one, the
scientist uses a rather stringent yardstick to evaluate theories
• He or she will formulate hypotheses and conduct research to determine whether the
theory can adequately predict and explain new observations.
• Thus, there is no room for subjective bias when evaluating a theory.
• Theories in the developmental sciences are only as good as their ability to predict and
explain important aspects of development.
• We will focus on the research methods that developmentalists use to test their theories
and gain a better understanding of child and adolescent development.
• When detectives are assigned cases to solve, they first gather the facts and formulate
hunches, and then sift through the clues or collect additional information until one of
their hunches proves correct.
• Unraveling the mysteries of development is in many ways a similar endeavor.
• Investigators must carefully observe their subjects, analyze the information they collect,
and use these data to draw conclusions about the ways people develop.
• Let’s look at this approah i ore detail.
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