## Experimental Design in Psychological Research |

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### Contents

THE NATURE OF RESEARCH | 1 |

PRINCIPLES OF EXPERIMENTAL DESIGN | 13 |

BINOMIAL POPULATIONS IN RESEARCH | 28 |

Copyright | |

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### Common terms and phrases

A X B interaction A X B X C interaction A X C analysis of variance assume binomial population calculated CN CN column corresponding data of Table degrees of freedom differ significantly drug equal error mean square estimate of experimental example factor factorial experiment freedom associated frequency given in Table Graeco-Latin square id id id interaction sum Latin square levels linear component measures multiple comparisons multiplying normal curve normally distributed null hypothesis number of degrees number of observations obtained organismic variable orthogonal comparisons pi pi pi probability problem Psychol quadratic components random sampling randomized blocks design randomized groups design replication residual result sampling distribution scores selected shock X stages Source of Variation squares within groups stages sum standard deviation standard error Statistical subjects subtraction sum of squares test of significance treatment effects treatment groups treatment mean square treatment sum trend zero