COMBINING VARIABLES, CONTROLLING VARIABLES, AND PROPORTIONS. IS THERE A PSYCHOLOGICAL LINK.LAWSON AE.1979; SCI. EDUC.; USA; DA. 1979; VOL. 63; NO 1; PP. 67-72; BIBL. 23 REF.Article

M-SPACE: IS IT A CONSTRAINT ON CONSERVATION REASONING ABILITY.LAWSON AE.1976; J. EXPER. CHILD PSYCHOL.; U.S.A.; DA. 1976; VOL. 22; NO 1; PP. 40-49; BIBL. 12 REF.Article

SEX DIFFERENCE IN CONCRETE AND FORMAL REASONING ABILITY AS MEASURED BY MANIPULATIVE TASKS AND WRITTEN TASKS.LAWSON AE.1975; SCI. EDUC.; U.S.A.; DA. 1975; VOL. 39; NO 3; PP. 397-405; BIBL. 29 REF.Article

PREDICTING SCIENCE ACHIEVEMENT: THE ROLE OF DEVELOPMENTAL LEVEL, DISEMBEDDING, ABILITY, MENTAL CAPACITY, PRIOR KNOWLEDGE, AND BELIEFSLAWSON AE.1983; JOURNAL OF RESEARCH IN SCIENCE TEACHING; ISSN 0022-4308; USA; DA. 1983; VOL. 20; NO 2; PP. 117-129; BIBL. 22 REF.Article

THE DEVELOPMENTAL LEARNING PARADIGMLAWSON AE.1979; J. RES. SCI. TEACHG; USA; DA. 1979; VOL. 16; NO 6; PP. 501-515; BIBL. 2 P.Article

ATHLETICS, INTELLECTUAL DEVELOPMENT, AND TEACHING: AN ANALOGY.LAWSON AE.1977; SCI. EDUC.; U.S.A.; DA. 1977; VOL. 61; NO 1; PP. 79-83Article

A VERSATILE, LOW COST GAS CHROMATOGRAPHLAWSON AE.1972; INTERNATION. LAB.; U.S.A.; DA. 1972; PP. 55-62; BIBL. 9 REF.Serial Issue

THE REALITY OF GENERAL COGNITIVE OPERATIONSLAWSON AE.1982; SCI. EDUC.; ISSN 0036-8326; USA; DA. 1982; VOL. 66; NO 2; PP. 229-241; BIBL. 2 P.Article

RELATIONSHIPS AMONG PERFORMANCES ON GROUP ADMINISTERED ITEMS OF FORMAL REASONINGLAWSON AE.1979; PERCEPT. MOTOR SKILLS; USA; DA. 1979; VOL. 48; NO 1; PP. 71-78; BIBL. 7 REF.Article

FORMAL OPERATIONS AND FIELD INDEPENDENCE IN A HETEROGENEOUS SAMPLE. = LES OPERATIONS FORMELLES ET L'INDEPENDANCE DE CHAMP CHEZ UN ECHANTILLON HETEROGENELAWSON AE.1976; PERCEPT. MOTOR SKILLS; U.S.A.; DA. 1976; VOL. 42; NO 3 PART. 1; PP. 981-982; BIBL. 5 REF.Article

RELATIONSHIPS AMONG LEVEL OF INTELLECTUAL DEVELOPMENT, COGNITIVE STYLE, AND GRADES IN A COLLEGE BIOLOGY COURSELAWSON AE.1980; SCI. EDUC.; ISSN 0036-8326; USA; DA. 1980; VOL. 64; NO 1; PP. 94-102; BIBL. 29 REF.Article

RELATIONSHIPS OF SCIENCE SUBJECT MATTER AND DEVELOPMENTAL LEVELS OF LEARNERS.LAWSON AE; RENNER JW.1975; J. RES. SCI. TEACHG; U.S.A.; DA. 1975; VOL. 12; NO 4; PP. 347-358; BIBL. 17 REF.Article

A SOLUTION FLUORIMETER/NEPHELOMETER ATTACHMENT FOR THE UNICAM SP90 ATOMIC ABSORPTION SPECTROMETERSMITH R; LAWSON AE.1971; SPECTROVISION; G.B.; DA. 1971; NO 26; PP. 11-12; BIBL. 6 REF.Serial Issue

TEACHING FORMAL REASONING IN A COLLEGE BIOLOGY COURSE FOR PRESERVICE TEACHERSLAWSON AE; SNITGEN DA.1982; J. RES. SCI. TEACH.; ISSN 0022-4308; USA; DA. 1982; VOL. 19; NO 3; PP. 233-248; BIBL. 2 P.Article

SYNTACTICAL COMPLEXITY IN WRITTEN LANGUAGE AND COGNITIVE DEVELOPMENT AT THE FORMAL LEVELLAWSON AE; SHEPHERD GD.1979; SCI. EDUC.; USA; DA. 1979; VOL. 63; NO 1; PP. 73-81; BIBL. 19 REF.Article

THE INFLUENCE OF INSTRUCTION ON PROPORTIONAL REASONING IN SEVENTH GRADERS.WOLLMAN WT; LAWSON AE.1978; J. RES. SCI. TEACHG; U.S.A.; DA. 1978; VOL. 15; NO 3; PP. 227-232; BIBL. 15 REF.Article

ENCOURAGING THE TRANSITION FROM CONCRETE TO FORMAL COGNITIVE FUNCTIONNING - AN EXPERIMENT.LAWSON AE; WOLLMAN WT.1976; J. RES. TEACHG; U.S.A.; DA. 1976; VOL. 13; NO 5; PP. 413-430; BIBL. 1 P. 1/2Article

CONSERVATION REASONING ABILITY AND PERFORMANCE ON BSCS BLUE VERSION EXAMINATIONS.LAWSON AE; NORDLAND FH.1977; J. RES. SCI. TEACHG; U.S.A.; DA. 1977; VOL. 14; NO 1; PP. 69-75; BIBL. 13 REF.Article

TEACHING THE PROCEDURE OF CONTROLLED EXPERIMENTATION: A PIAGETIAN APPROACH.WOLLMAN W; LAWSON AE.1977; SCI. EDUC.; U.S.A.; DA. 1977; VOL. 61; NO 1; PP. 57-70; BIBL. 25 REF.Article

THE FACTOR STRUCTURE OF SOME PIAGETIAN TASKS.LAWSON AE; NORDLAND FH.1976; J. RES. TEACHG; U.S.A.; DA. 1976; VOL. 13; NO 5; PP. 461-466; BIBL. 17 REF.Article

A QUANTITATIVE ANALYSIS OF RESPONSES TO PIAGETIAN TASKS AND ITS IMPLICATIONS FOR CURRICULUMLAWSON AE; RENNER JW.1974; SCI. EDUC.; U.S.A.; DA. 1974; VOL. 58; NO 4; PP. 545-559; BIBL. 1P.Article

ACCEPTANCE OF LACK OF CLOSURE: ITS IT AN INDEX OF ADVANCED REASONING.WOLLMAN W; EYLON BS; LAWSON AE et al.1979; CHILD DEVELOP.; USA; DA. 1979; VOL. 50; NO 3; PP. 656-665; BIBL. 15 REF.Article

RELATIONSHIP OF FORMAL REASONING TO ACHIEVEMENT, APTITUDES, AND ATTITUDES IN PRESERVICE TEACHERS.LAWSON AE; NORDLAND FH; DEVITO A et al.1975; J. RES. SCI. TEACHG; U.S.A.; DA. 1975; VOL. 12; NO 4; PP. 423-431; BIBL. 17 REF.Article

A STUDY OF LEVELS OF CONCRETE AND FORMAL REASONING ABILITY IN DISADVANTAGES JUNIOR AND SENIOR HIGH SCHOOL SCIENCE STUDENTSNORDLAND FH; LAWSON AE; KAHLE JB et al.1974; SCI. EDUC.; U.S.A.; DA. 1974; VOL. 58; NO 4; PP. 569-575; BIBL. 15REF.Article

AN ANALYSIS OF PREMATURE CLOSURE IN SCIENCE AND DEVELOPMENTAL STAGESWOLLMAN W; EYLON BS; LAWSON AE et al.1980; J. RES. SCI. TEACHG; USA; DA. 1980; VOL. 17; NO 2; PP. 105-114; BIBL. 9 REF.Article