ISBN-13: 9781446253236 / Angielski / Miękka / 2014 / 280 str.
ISBN-13: 9781446253236 / Angielski / Miękka / 2014 / 280 str.
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Validity is the hallmark of quality for educational and psychological measurement. But what does quality mean in this context? And to what, exactly, does the concept of validity apply? These apparently innocuous questions parachute the unwary inquirer into a minefield of tricky ideas. This book guides you through this minefield, investigating how the concept of validity has evolved from the nineteenth century to the present day. Communicating complicated concepts straightforwardly, the authors answer questions like: